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Document and Entity Information - USD ($)	3 Months Ended
Document and Entity Information - USD ($)	Mar. 31, 2019	Jun. 30, 2018
Document and Entity Information [Abstract]
Document Type	10-Q
Document Period End Date	Mar. 31, 2019
Amendment Flag	false
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	Q1
Current Fiscal Year End Date	--12-31
Entity Registrant Name	UNITED TECHNOLOGIES CORP /DE/
Entity Central Index Key	0000101829
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Public Float		$ 99,985,852,722
Entity Common Stock, Shares Outstanding	862,291,415
Entity Emerging Growth Company	false
Entity Current Reporting Status	Yes

Condensed Consolidated Statement of Operations Condensed Consolidated Statement of Operations - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Net Sales:
Revenues	$ 18,365	$ 15,242
Costs and Expenses:
Research and development	728	554
Selling, general and administrative	1,997	1,711
Total costs and expenses	16,432	13,545
Other income, net	112	231
Operating profit	2,045	1,928
Non-service pension cost (benefit)	(208)	(191)
Interest expense, net	431	229
Income from operations before income taxes	1,822	1,890
Income tax expense	397	522
Net Income from operations	1,425	1,368
Less: Noncontrolling interest in subsidiaries' earnings from operations	79	71
Net income attributable to common shareowners	$ 1,346	$ 1,297
Earnings Per Share of Common Stock - Basic:
Net income attributable to common shareowners	$ 1.58	$ 1.64
Earnings Per Share of Common Stock - Diluted:
Net income attributable to common shareowners	$ 1.56	$ 1.62
Product [Member]
Net Sales:
Revenues	$ 12,875	$ 10,258
Costs and Expenses:
Cost of Goods and Services Sold	10,286	8,016
Service [Member]
Net Sales:
Revenues	5,490	4,984
Costs and Expenses:
Cost of Goods and Services Sold	$ 3,421	$ 3,264

Condensed Consolidated Statement of Comprehensive Income - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Statement of Comprehensive Income [Abstract]
Net Income from operations	$ 1,425	$ 1,368
Foreign currency translation adjustments
Foreign Currency Translation Adjustments, Net of Tax	521	539
Pension and post-retirement benefit plans
Pension and Other Postretirement Benefit Plans, Net of Tax	(33)	(73)
Unrealized gain (loss) on available-for-sale securities
Other Comprehensive Income (Loss), ASU 2016-01 adoption impact on Securities Arising During Period	0	(5)
Change in unrealized cash flow hedging
Total unrealized gain (loss) on cash-flow hedging, net of tax	8	14
Other comprehensive income (loss), net of tax	562	621
Comprehensive income	1,987	1,989
Less: Comprehensive income attributable to noncontrolling interest	82	104
Comprehensive income attributable to common shareowners	$ 1,905	$ 1,885

Condensed Consolidated Balance Sheet - USD ($) $ in Millions	Mar. 31, 2019	Dec. 31, 2018
Statement of Financial Position [Abstract]
Cash and cash equivalents	$ 6,240	$ 6,152
Accounts receivable, net	13,574	14,271
Contract with Customer, Asset, Net, Current	3,795	3,486
Inventory, net	10,474	10,083
Other assets, current	1,319	1,511
Total Current Assets	35,402	35,503
Customer financing assets	3,182	3,023
Future income tax benefits	1,703	1,646
Fixed assets	24,351	24,084
Less: Accumulated depreciation	12,141	11,787
Fixed assets, net	12,210	12,297
Operating Lease, Right-of-Use Asset	2,533	0
Goodwill	48,392	48,112
Intangible assets, net	26,280	26,424
Other assets	7,678	7,206
Total Assets	137,380	134,211
Short-term borrowings	1,111	1,469
Accounts payable	10,364	11,080
Accrued liabilities	10,750	10,223
Contract with Customer, Liability, Current	6,107	5,720
Long-term debt currently due	3,071	2,876
Total Current Liabilities	31,403	31,368
Long-term debt	41,004	41,192
Future pension and postretirement benefit obligations	3,846	4,018
Operating Lease, Liability, Noncurrent	2,020	0
Other long-term liabilities	17,052	16,914
Total Liabilities	95,325	93,492
Commitments and contingent liabilities (Note 15)
Redeemable noncontrolling interest	109	109
Common Stock	22,564	22,514
Treasury Stock	32,511	32,482
Retained earnings	59,279	57,823
Unearned ESOP shares	75	76
Accumulated other comprehensive loss	(9,519)	(9,333)
Total Shareowners' Equity	39,738	38,446
Stockholders' Equity Attributable to Noncontrolling Interest	2,208	2,164
Total Equity	41,946	40,610
Total Liabilities and Equity	$ 137,380	$ 134,211

Condensed Consolidated Statement of Cash Flows - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Statement of Cash Flows [Abstract]
Net Income from operations	$ 1,425	$ 1,368
Adjustments to reconcile income from continuing operations to net cash flows provided by operating activities of continuing operations:
Depreciation and amortization	942	581
Deferred income tax provision	21	42
Stock compensation cost	64	55
Change in:
Accounts receivable	(849)	1,140
Contract assets, current	215	417
Inventories and contracts in progress	697	631
Other current assets	165	12
Accounts payable and accrued liabilities	(588)	576
Contract liabilities, current	371	652
Global pension contributions	32	37
Canadian Government Settlement	(38)	(221)
Other operating activities, net	437	363
Net cash flows provided by operating activities of continuing operations	1,500	453
Investing Activities of Continuing Operations:
Capital expenditures	363	337
Investments in businesses	19	125
Dispositions of businesses	133	35
Increase in customer financing assets	173	241
Increase in collaboration intangible assets	87	78
Payments (receipts) from settlements of derivative contracts	(92)	221
Other investing activities, net	(23)	9
Net cash flows used in investing activities of continuing operations	(394)	(976)
Financing Activities of Continuing Operations:
Proceeds from Issuance of Long-term Debt	32	18
Repayments of Long-term Debt	26	993
(Decrease) increase in short-term borrowings, net	(349)	666
Proceeds from Common Stock issued under employee stock plans	5	5
Dividends paid on Common Stock	609	535
Repurchase of Common Stock	29	25
Other financing activities, net	(101)	(46)
Net cash flows used in financing activities of continuing operations	(1,077)	(910)
Effect of Exchange Rate on Cash and Cash Equivalents [Abstract]
Effect of foreign exchange rate changes on cash and cash equivalents	41	119
Net increase (decrease) in cash and cash equivalents	70	(1,314)
Cash and Cash Equivalents, beginning of year	6,212	9,018
Cash and Cash Equivalents, end of period	6,282	7,704
Restricted Cash	42	37
Cash and cash equivalents, end of period	$ 6,240	$ 7,667

Condensed Consolidated Statement of Changes in Equity Statement - USD ($) shares in Thousands, $ in Millions	Total	Common Stock [Member]	Treasury Stock [Member]	Retained Earnings [Member]	Deferred Compensation, Share-based Payments [Member]	AOCI Attributable to Parent [Member]	Noncontrolling Interest [Member]	ASU 2014-09 [Member]
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	$ 31,421
Stockholders' Equity Attributable to Parent		$ 17,574	$ (35,596)	$ 55,242	$ (85)	$ (7,525)
Stockholders' Equity Attributable to Noncontrolling Interest							$ 1,811
Stock Issued During Period, Value, Share-based Compensation, Net of Forfeitures		68	2		1
Treasury Stock, Value, Acquired, Cost Method			25
Noncontrolling Interest, Decrease from Redemptions or Purchase of Interests		1					1
Noncontrolling Interest, Change in Redemption Value		0		(2)
Net income attributable to common shareowners	$ 1,297			1,297
Dividends, Common Stock				535
Employee Stock Ownership Plan (ESOP), Dividends Paid to ESOP				18
Stockholders' Equity, Other				29			0	$ (480)
Reclassification to Retained Earnings, current period, ASU 2018-02 adoption impact				0
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent						588
Net Income (Loss) Attributable to Noncontrolling Interest							71
Net Income (Loss) Attributable to Redeemable Noncontrolling Interest							(2)
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Noncontrolling Interest							33
Reclassification from OCI, current period, ASU 2018-02 adoption impact						0
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders							66
Non-controlling interest, decrease from disposition of non-controlling interest							8
Noncontrolling Interest, Increase from Capital Contributions							120
Stock Issued During Period, Shares, Share-based Compensation, Net of Forfeitures	1,075
Stock Repurchased During Period, Shares	188
Common Stock, Dividends, Per Share, Declared	$ 0.700
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	$ 32,492
Stockholders' Equity Attributable to Parent		17,641	(35,619)	55,533	(84)	(6,937)
Stockholders' Equity Attributable to Noncontrolling Interest							1,958
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	40,610
Stockholders' Equity Attributable to Parent	38,446	22,514	(32,482)	57,823	(76)	(9,333)
Stockholders' Equity Attributable to Noncontrolling Interest	2,164						2,164
Stock Issued During Period, Value, Share-based Compensation, Net of Forfeitures		57	3		1
Treasury Stock, Value, Acquired, Cost Method			32
Noncontrolling Interest, Decrease from Redemptions or Purchase of Interests		0					0
Noncontrolling Interest, Change in Redemption Value		(7)		4
Net income attributable to common shareowners	1,346			1,346
Dividends, Common Stock				609
Employee Stock Ownership Plan (ESOP), Dividends Paid to ESOP				18
Stockholders' Equity, Other				(12)			3	$ 0
Reclassification to Retained Earnings, current period, ASU 2018-02 adoption impact				745
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent						559
Net Income (Loss) Attributable to Noncontrolling Interest							79
Net Income (Loss) Attributable to Redeemable Noncontrolling Interest							3
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Noncontrolling Interest							3
Reclassification from OCI, current period, ASU 2018-02 adoption impact	$ (745)					(745)
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders							44
Non-controlling interest, decrease from disposition of non-controlling interest							0
Noncontrolling Interest, Increase from Capital Contributions							0
Stock Issued During Period, Shares, Share-based Compensation, Net of Forfeitures	1,028
Stock Repurchased During Period, Shares	256
Common Stock, Dividends, Per Share, Declared	$ 0.735
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	$ 41,946
Stockholders' Equity Attributable to Parent	39,738	$ 22,564	$ (32,511)	$ 59,279	$ (75)	$ (9,519)
Stockholders' Equity Attributable to Noncontrolling Interest	$ 2,208						$ 2,208

Introduction to Notes to Condensed Consolidated Financial Statements (Unaudited) Introduction	3 Months Ended
	Mar. 31, 2019
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Introduction of Notes to Condensed Consolidated Financial Statements	The Condensed Consolidated Financial Statements at March 31, 2019 and for the quarters ended March 31, 2019 and 2018 are unaudited, but in the opinion of management include all adjustments (consisting only of normal recurring adjustments) necessary for a fair statement of the results for the interim periods. The results reported in these Condensed Consolidated Financial Statements should not necessarily be taken as indicative of results that may be expected for the entire year. The financial information included herein should be read in conjunction with the financial statements and notes in our Annual Report to Shareowners (2018 Annual Report) incorporated by reference in our Annual Report on Form 10-K for calendar year 2018 (2018 Form 10-K).

Acquisitions, Dispositions, Goodwill and Other Intangible Assets

3 Months Ended

Mar. 31, 2019

Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net [Abstract]

Acquisitions, Dispositions, Goodwill and Other Intangible Assets [Text Block]

Acquisitions, Dispositions, Goodwill and Other Intangible Assets

Business Acquisitions. During the three months ended March 31, 2019, our investment in business acquisitions was $19 million, which consisted of small acquisitions at Otis.

On November 26, 2018, we completed the acquisition of Rockwell Collins (the "Merger"), a leader in aviation and high-integrity solutions for commercial and military customers as well as leading-edge avionics, flight controls, aircraft interior and data connectivity solutions. Under the terms of the merger agreement, each share of common stock, par value $0.01 per share, of Rockwell Collins issued and outstanding immediately prior to the effective time of the Merger (other than shares held by Rockwell Collins, the Company, Riveter Merger Sub Corp or any of their respective wholly owned subsidiaries) was converted into the right to receive (1) $93.33 in cash, without interest, and (2) 0.37525 shares of Company common stock (together, the “Merger Consideration”), less any applicable withholding taxes, with cash paid in lieu of fractional shares. The total aggregate consideration payable in the Merger was $15.5 billion in cash ($14.9 billion net of cash acquired) and 62.2 million shares of Company common stock. In addition, $7.8 billion of Rockwell Collins debt was outstanding at the time of the Merger. This equated to a total enterprise value of $30.6 billion, including the $7.8 billion of Rockwell Collins' outstanding debt.



(dollars in millions)	Amount
Cash consideration paid for Rockwell Collins outstanding common stock & equity awards	$	15,533
Fair value of UTC common stock issued for Rockwell Collins outstanding common stock & equity awards	7,960
Total consideration transferred	$	23,493

The cash consideration utilized for the Rockwell Collins acquisition was partially financed through the previously disclosed issuance of $11 billion aggregate principal notes on August 16, 2018 for net proceeds of $10.9 billion. For the remainder of the cash consideration, we utilized repatriated cash and cash equivalents and cash flow generated from operating activities.

Preliminary Allocation of Consideration Transferred to Net Assets Acquired:

The following amounts represent the preliminary determination of the fair value of identifiable assets acquired and liabilities assumed from the Rockwell Collins acquisition. The final determination of the fair value of certain assets and liabilities will be completed up to a one year measurement period from the date of acquisition as required by the Financial Accounting Standards Board (FASB) Accounting Standards Codification (ASC) Topic 805, “Business Combinations.” As of March 31, 2019, the valuation studies necessary to determine the fair market value of the assets acquired and liabilities assumed are preliminary, including the validation of the underlying cash flows used to determine the fair value of the identified intangible assets. The size and breadth of the Rockwell Collins acquisition necessitates use of the one year measurement period to adequately analyze all the factors used in establishing the asset and liability fair values as of the acquisition date, including, but not limited to, intangible assets, inventory, real property, leases, deferred tax liabilities related to the unremitted earnings of foreign subsidiaries, certain reserves and the related tax impacts of any adjustments. Any potential adjustments could be material in relation to the preliminary values presented below:



(dollars in millions)
Cash and cash equivalents	$	640
Accounts receivable, net	1,663
Inventory, net	1,520
Contract assets, current	301
Other assets, current	264
Future income tax benefits	38
Fixed assets, net	1,691
Intangible assets:
Customer relationships	8,320
Tradenames/trademarks	1,870
Developed technology	600
Other assets	210
Total identifiable assets acquired	17,117

Short-term borrowings	2,254
Accounts payable	378
Accrued liabilities	1,689
Contract liabilities, current	301
Long-term debt	5,530
Future pension and postretirement benefit obligation	502
Other long-term liabilities	3,517
Noncontrolling interest	6
Total liabilities acquired	14,177
Total identifiable net assets	2,940
Goodwill	20,553
Total consideration transferred	$	23,493

In order to allocate the consideration transferred for Rockwell Collins, the fair values of all identifiable assets and liabilities were established. For accounting and financial reporting purposes, fair value is defined under FASB ASC Topic 820, “Fair Value Measurements and Disclosures” as the price that would be received upon sale of an asset or the amount paid to transfer a liability in an orderly transaction between market participants at the measurement date. Market participants are assumed to be buyers and sellers in the principal (most advantageous) market for the asset or liability. Additionally, fair value measurements for an asset assume the highest and best use of that asset by market participants. Use of different estimates and judgments could yield different results. Fair value adjustments to Rockwell Collins' identified assets and liabilities resulted in an increase in inventory and fixed assets of $282 million and $269 million, respectively. In determining the fair value of identifiable assets acquired and liabilities assumed, a review was conducted for any significant contingent assets or liabilities existing as of the acquisition date. The preliminary assessment did not note any significant contingencies related to existing legal or government action.

The fair values of the customer relationship and related program intangible assets, which include the related aerospace program original equipment (OEM) and aftermarket cash flows, were determined by using an “income approach." Under this approach, the net earnings attributable to the asset or liability being measured are isolated using the discounted projected net cash flows. These projected cash flows are isolated from the projected cash flows of the combined asset group over the remaining economic life of the intangible asset or liability being measured. Both the amount and the duration of the cash flows are considered from a market participant perspective. Our estimates of market participant net cash flows considered historical and projected pricing, remaining developmental effort, operational performance, including company specific synergies, aftermarket retention, product life cycles, material and labor pricing, and other relevant customer, contractual and market factors. Where appropriate, the net cash flows are probability-adjusted to reflect the uncertainties associated with the underlying assumptions as well as the risk profile of the net cash flows utilized in the valuation. The probability-adjusted future cash flows are then discounted to present value using an appropriate discount rate. The customer relationship and related program intangible assets are being amortized on a straight-line basis (which approximates the economic pattern of benefits) over the estimated economic life of the underlying programs of 10 to 20 years. The developed technology intangible asset is being amortized over the economic pattern of benefit. The fair value of the tradename intangible assets were determined utilizing the relief from royalty method which is a form of the income approach. Under this method, a royalty rate based on observed market royalties is applied to projected revenue supporting the tradename and discounted to present value using an appropriate discount rate. The tradename intangible assets have been determined to have an indefinite life. The Intangible assets included above consist of the following:



(dollars in millions)	Estimated Fair Value		Estimated Life
Acquired customer relationships	$	8,320	10-20 years
Acquired tradenames/trademarks	1,870		indefinite
Acquired developed technology	600		15 years
	$	10,790

We also identified customer contractual obligations on certain contracts with economic returns that are lower than could be realized in market transactions as of the acquisition date. We measured these liabilities under the measurement provisions of FASB ASC Topic 820, “Fair Value Measurements and Disclosures,” which is based on the price to transfer the obligation to a market participant at the measurement date, assuming that the liability will remain outstanding in the marketplace. Based on the estimated net cash outflows of the programs plus a reasonable contracting profit margin required to transfer the contracts to market participants, we recorded assumed liabilities of approximately $1,020 million. These liabilities will be liquidated in accordance with the underlying pattern of obligations, as reflected by the expenses incurred on the contracts. Total consumption of the contractual obligation for the next five years is expected to be as follows: $145 million in 2019, $133 million in 2020, $131 million in 2021, $125 million in 2022, and $118 million in 2023.

Acquisition-Related Costs:

Acquisition-related costs have been expensed as incurred. In the quarters ended March 31, 2019 and 2018, approximately $9 million and $30 million, respectively, of transaction and integration costs have been incurred. These costs were recorded in Selling, general and administrative expenses within the Condensed Consolidated Statement of Operations.

Supplemental Pro-Forma Data:

Rockwell Collins' results of operations have been included in UTC’s financial statements for the period subsequent to the completion of the acquisition on November 26, 2018. Rockwell Collins contributed sales of approximately $2.3 billion and operating profit of approximately $264 million for the quarter ended March 31, 2019. The following unaudited supplemental pro-forma data presents consolidated information as if the acquisition had been completed on January 1, 2017. The pro-forma results were calculated by combining the results of UTC with the stand-alone results of Rockwell Collins for the pre-acquisition periods, which were adjusted to account for certain costs that would have been incurred during this pre-acquisition period:



	Quarter Ended March 31,
(dollars in millions, except per share amounts)	2019		2018
Net sales	$	18,360	$	17,320
Net income attributable to common shareowners	$	1,484	$	1,475
Basic earnings per share of common stock	$	1.74	$	1.73
Diluted earnings per share of common stock	$	1.72	$	1.71

The unaudited supplemental pro-forma data above includes the following significant adjustments made to account for certain costs which would have been incurred if the acquisition had been completed on January 1, 2017, as adjusted for the applicable tax impact.



	Quarter Ended March 31,
(dollars in millions)	2019			2018
Amortization of inventory and fixed asset fair value adjustment ¹	$	141		$	(5	)
Amortization of acquired Rockwell Collins intangible assets, net ²	—			(53		)
Utilization of contractual customer obligation ³	—			2
UTC/Rockwell Collins fees for advisory, legal, accounting services ⁴	2			26
Interest expense incurred on acquisition financing, net ⁵	—			(76		)
Elimination of capitalized pre-production engineering amortization ⁶	—			14
Adjustment to net periodic pension cost ⁷	—			11
Adjustment to reflect the adoption of ASC 606 ⁸	—			29
Elimination of entities held for sale ⁹	(5		)	(7		)
	$	138		$	(59	)


1	Reflects the elimination of the inventory step-up amortization recorded by UTC in 2019 as this would have been completed within the first two quarters of 2017. Additionally, this adjustment reflects the amortization of the fixed asset fair value adjustment as of the acquisition date.


2	Reflects the additional amortization of the acquired Rockwell Collins' intangible assets recognized at fair value in purchase accounting and eliminates the historical Rockwell Collins intangible asset amortization expense.


3	Reflects the additional amortization of liabilities recognized for acquired contracts with terms less favorable than could be realized in market transactions as of the acquisition date and eliminates Rockwell Collins historical amortization of these liabilities.


4	Reflects the elimination of transaction-related fees incurred by UTC and Rockwell Collins in connection with the acquisition and assumes all of the fees were incurred during the first quarter of 2017.


5	Reflects the additional interest expense incurred on debt to finance our acquisition of Rockwell Collins and reduces interest expense for the debt fair value adjustment which would have been amortized.


6	Reflects the elimination of Rockwell Collins capitalized pre-production engineering amortization to conform to UTC policy.


7	Reflects adjustments for the elimination of amortization of prior service cost and actuarial loss amortization, which was recorded by Rockwell Collins, as a result of fair value purchase accounting, net of the impact of the revised pension and post-retirement benefit (expense) as determined under UTC’s plan assumptions.


8	Reflects adjustments to Rockwell Collins revenue recognition as if they adopted the New Revenue Standard as of January 1, 2018 and primarily relates to capitalization of contract costs and changes in timing of sales recognition for contracts requiring an over time method of revenue recognition, partially offset by deferral of revenue recognized on OEM product engineering and development.


9	Reflects the elimination of entities required to be sold for regulatory approvals.

The unaudited supplemental pro-forma financial information does not reflect the potential realization of cost savings relating to the integration of the two companies. Further, the pro-forma data should not be considered indicative of the results that would have occurred if the acquisition and related financing had been consummated on January 1, 2017, nor are they indicative of future results.

Dispositions. Cash inflows related to dispositions during the three months ended March 31, 2019 were $133 million and primarily consisted of the dispositions of businesses held for sale associated with the Rockwell Collins acquisition. In accordance with conditions imposed for regulatory approval of the acquisition, Rockwell Collins was required to dispose of certain businesses. These businesses were held separate from UTC’s and Rockwell Collins' ongoing businesses pursuant to regulatory requirements. Definitive agreements to sell each of the businesses were entered into prior to the completion of UTC's acquisition of Rockwell Collins. The related assets and liabilities of these businesses had been accounted for as held for sale at fair value less cost to sell. As of December 31, 2018, assets held for sale of $175 million were included within Other assets, current and liabilities held for sale of $40 million were included within Accrued liabilities on the Consolidated Balance Sheet. The major classes of assets and liabilities primarily include net Inventory of $51 million and net Fixed assets of $37 million. In the first quarter of 2019, Rockwell Collins completed the sale of all businesses which were held for sale as of December 31, 2018.

On November 26, 2018, the Company announced its intention to separate into three independent companies. Following the separations, the Company will operate as an aerospace company comprised of Collins Aerospace Systems and the Pratt & Whitney businesses, and Otis and Carrier will become independent companies. The proposed separations are expected to be effected through spin-offs of Otis and Carrier that are intended to be tax-free for the Company’s shareowners for U.S. federal income tax purposes, and are expected to be completed in the first half of 2020. Separation of Otis and Carrier from UTC via spin-off transactions will be subject to the satisfaction of customary conditions, including, among others, final approval by the Company’s Board of Directors, receipt of tax rulings in certain jurisdictions and/or a tax opinion from external counsel (as applicable), the filing with the Securities and Exchange Commission (SEC) and effectiveness of Form 10 registration statements, and satisfactory completion of financing.

Goodwill. Changes in our goodwill balances for the quarter ended March 31, 2019 were as follows:



(dollars in millions)	Balance as of January 1, 2019		Goodwill Resulting from Business Combinations		Foreign Currency Translation and Other			Balance as of March 31, 2019
Otis	$	1,688	$	7	$	(11	)	$	1,684
Carrier	9,835		1		69			9,905
Pratt & Whitney	1,567		—		(4		)	1,563
Collins Aerospace Systems	35,001		85		132			35,218
Total Segments	48,091		93		186			48,370
Eliminations and other	21		—		1			22
Total	$	48,112	$	93	$	187		$	48,392

Goodwill increased $85 million at Collins Aerospace Systems resulting from insignificant purchase accounting adjustments made during the quarter ended March 31, 2019.

Intangible Assets. Identifiable intangible assets are comprised of the following:



	March 31, 2019					December 31, 2018
(dollars in millions)	Gross Amount		Accumulated Amortization			Gross Amount		Accumulated Amortization
Amortized:
Service portfolios	$	2,168	$	(1,627	)	$	2,164	$	(1,608	)
Patents and trademarks	362		(242		)	361		(236		)
Collaboration intangible assets	4,599		(723		)	4,509		(649		)
Customer relationships and other	22,651		(4,841		)	22,525		(4,560		)
	29,780		(7,433		)	29,559		(7,053		)
Unamortized:
Trademarks and other	3,933		—			3,918		—
Total	$	33,713	$	(7,433	)	$	33,477	$	(7,053	)

In addition to customer relationship intangible assets obtained through business combinations, customer relationship intangible assets include payments made to our customers to secure certain contractual rights. Such payments are capitalized when distinct rights are obtained and sufficient incremental cash flows to support the recoverability of the assets have been established. Otherwise, the applicable portion of the payments is expensed. We amortize these intangible assets based on the underlying pattern of economic benefit, which may result in an amortization method other than straight-line. In the aerospace industry, amortization based on the pattern of economic benefit generally results in lower amortization expense during the development period with amortization expense increasing as programs enter full production and aftermarket cycles. If a pattern of economic benefit cannot be reliably determined, a straight-line amortization method is used. We classify amortization of such payments as a reduction of sales. The collaboration intangible assets are amortized based upon the pattern of economic benefits as represented by the underlying cash flows.

Amortization of intangible assets was $374 million and $223 million for the quarters ended March 31, 2019 and 2018, respectively. The following is the expected amortization of intangible assets for the years 2019 through 2024, which reflects the pattern of expected economic benefit on certain aerospace intangible assets.



(dollars in millions)	Remaining 2019		2020		2021		2022		2023		2024
Amortization expense	$	1,092	$	1,427	$	1,438	$	1,434	$	1,435	$	1,422

Revenue Recognition Revenue Recognition (Notes)

3 Months Ended

Mar. 31, 2019

Revenue from Contract with Customer [Abstract]

Revenue Recognition [Text Block]

Revenue Recognition

We account for revenue in accordance with ASC Topic 606: Revenue from Contracts with Customers.

Performance Obligations. A performance obligation is a promise in a contract with a customer to transfer a distinct good or service to the customer. Some of our contracts with customers contain a single performance obligation, while others contain multiple performance obligations most commonly when a contract spans multiple phases of the product life-cycle such as development, production, maintenance and support. A contract's transaction price is allocated to each distinct performance obligation and recognized as revenue when, or as, the performance obligation is satisfied. When there are multiple performance obligations within a contract, we allocate the transaction price to each performance obligation based on its standalone selling price.

We consider the contractual consideration payable by the customer and assess variable consideration that may affect the total transaction price, including contractual discounts, contract incentive payments, estimates of award fees, unfunded contract value under U.S. Government contracts, and other sources of variable consideration, when determining the transaction price of each contract. We include variable consideration in the estimated transaction price when there is a basis to reasonably estimate the amount. These estimates are based on historical experience, anticipated performance and our best judgment at the time. We also consider whether our contracts provide customers with significant financing. Generally, our contracts do not contain significant financing.

Timing of the satisfaction of performance obligations varies across our businesses due to our diverse product and service mix, customer base, and contractual terms.

Remaining Performance Obligations (RPO). RPO represents the aggregate amount of total contract transaction price that is unsatisfied or partially unsatisfied. As of March 31, 2019 our total RPO was approximately $117.5 billion. Of this total, we expect approximately 46% will be recognized as sales over the following 24 months. On December 31, 2018, we had approximately $115.5 billion of remaining performance obligations, at which time we expected to recognize approximately 46% of these remaining performance obligations as sales in the next 24 months.

Capitalized Contract Costs. We incur costs for engineering and development of aerospace products directly related to existing or anticipated contracts with customers. Such costs generate or enhance our ability to satisfy our performance obligations under these contracts. We capitalize these costs as contract fulfillment costs to the extent the costs are recoverable from the associated contract margin and subsequently amortize the costs as the OEM products performance obligations are satisfied. In instances where intellectual property does not transfer to the customer, we defer the customer funding of OEM product engineering and development and recognize revenue when the performance obligations related to the OEM products are satisfied. Capitalized net contract fulfillment costs were $1,072 million and $914 million as of March 31, 2019 and December 31, 2018, respectively and are recognized in Other assets in our Condensed Consolidated Balance Sheet.

Contract Assets and Liabilities. Contract assets reflect revenue recognized and performance obligations satisfied in advance of customer billing. Contract liabilities relate to payments received in advance of the satisfaction of performance under the contract. We receive payments from customers based on the terms established in our contracts. Total contract assets and contract liabilities as of March 31, 2019 and December 31, 2018 are as follows:



(dollars in millions)	March 31, 2019			December 31, 2018
Contract assets, current	$	3,795		$	3,486
Contract assets, noncurrent (included within Other assets)	1,209			1,142
Total contract assets	5,004			4,628
Contract liabilities, current	(6,107		)	(5,720		)
Contract liabilities, noncurrent (included within Other long-term liabilities)	(5,166		)	(5,069		)
Total contract liabilities	(11,273		)	(10,789		)
Net contract liabilities	$	(6,269	)	$	(6,161	)

Contract assets increased $376 million during the quarter ended March 31, 2019 primarily due to revenue recognition in excess of customer billings, primarily on Pratt & Whitney commercial aftermarket and military engines contracts and various programs at Collins Aerospace Systems. Contract liabilities increased $484 million during the quarter ended March 31, 2019 primarily due to customer billings in excess of revenue on Otis maintenance contracts and on certain Pratt & Whitney commercial aftermarket contracts. We recognized revenue of $2.0 billion during the quarter ended March 31, 2019 related to contract liabilities as of December 31, 2018.

Earnings Per Share

3 Months Ended

Mar. 31, 2019

Earnings Per Share [Abstract]

Earnings Per Share [Text Block]

Earnings Per Share



	Quarter Ended March 31,
(dollars in millions, except per share amounts; shares in millions)	2019		2018
Net income attributable to common shareowners	$	1,346	$	1,297
Basic weighted average number of shares outstanding	853.2		789.9
Stock awards and equity units (share equivalent)	7.5		10.5
Diluted weighted average number of shares outstanding	860.7		800.4
Earnings Per Share of Common Stock:
Basic	$	1.58	$	1.64
Diluted	$	1.56	$	1.62

The computation of diluted earnings per share excludes the effect of the potential exercise of stock awards, including stock appreciation rights and stock options, when the average market price of the common stock is lower than the exercise price of the related stock awards during the period because the effect would be anti-dilutive. In addition, the computation of diluted earnings per share excludes the effect of the potential exercise of stock awards when the awards’ assumed proceeds exceed the average market price of the common shares during the period. For the quarters ended March 31, 2019 and 2018, the number of stock awards excluded from the computation was approximately 12.2 million and 4.3 million, respectively.

Inventory

3 Months Ended

Mar. 31, 2019

Inventory Disclosure [Abstract]

Inventory [Text Block]

Inventory, net



(dollars in millions)	March 31, 2019		December 31, 2018
Raw materials	$	2,944	$	3,052
Work-in-process	2,819		2,673
Finished goods	4,711		4,358
	$	10,474	$	10,083

Raw materials, work-in-process and finished goods are net of valuation reserves of $1,325 million and $1,270 million as of March 31, 2019 and December 31, 2018, respectively.

Borrowings and Lines of Credit

3 Months Ended

Mar. 31, 2019

Debt Disclosure [Abstract]

Borrowings and Lines of Credit [Text Block]

Borrowings and Lines of Credit



(dollars in millions)	March 31, 2019		December 31, 2018
Commercial paper	$	849	$	1,257
Other borrowings	262		212
Total short-term borrowings	$	1,111	$	1,469

At March 31, 2019, we had credit agreements with various banks permitting aggregate borrowings of up to $10.35 billion, including: a $2.20 billion revolving credit agreement and a $2.15 billion multicurrency revolving credit agreement, both of which expire in August 2021; and a $2.0 billion revolving credit agreement and a $4.0 billion term credit agreement, both of which we entered into on March 15, 2019 and which will expire on March 15, 2021 or, if earlier, the date that is 180 days after the date on which each of the separations of Otis and Carrier have been consummated. On March 15, 2019, we terminated the $1.5 billion revolving credit agreement that we entered into on November 26, 2018. As of March 31, 2019, there were no borrowings under any of these agreements.

As of March 31, 2019, the undrawn portions of the $2.20 billion revolving credit agreement and $2.15 billion multicurrency revolving credit agreement were available to serve as backup facilities for the issuance of commercial paper. As of March 31, 2019, our maximum commercial paper borrowing limit was $4.35 billion. In April 2019, we increased our commercial paper borrowing limit to $6.35 billion with the undrawn portion of the $2.0 billion revolving credit agreement serving as additional backup for the issuance of commercial paper.

Commercial paper borrowings at March 31, 2019 include approximately €750 million ($849 million) of euro-denominated commercial paper. We use our commercial paper borrowings for general corporate purposes, including the funding of potential acquisitions, pension contributions, debt refinancing, dividend payments and repurchases of our common stock. The need for commercial paper borrowings arises when the use of domestic cash for general corporate purposes exceeds the sum of domestic cash generation and foreign cash repatriated to the U.S.

Long-term debt consisted of the following:



(dollars in millions)	March 31, 2019		December 31, 2018
LIBOR plus 0.350% floating rate notes due 2019 ³	$	350	$	350
1.500% notes due 2019 ¹	650		650
1.950% notes due 2019 ⁴	300		300
EURIBOR plus 0.15% floating rate notes due 2019 (€750 million principal value) ²	849		858
5.250% notes due 2019 ⁴	300		300
8.875% notes due 2019	271		271
4.875% notes due 2020 ¹	171		171
4.500% notes due 2020 ¹	1,250		1,250
1.900% notes due 2020 ¹	1,000		1,000
EURIBOR plus 0.20% floating rate notes due 2020 (€750 million principal value) ²	849		858
8.750% notes due 2021	250		250
3.100% notes due 2021 ⁴	250		250
3.350% notes due 2021¹	1,000		1,000
LIBOR plus 0.650% floating rate notes due 2021 ^1,3	750		750
1.950% notes due 2021 ¹	750		750
1.125% notes due 2021 (€950 million principal value) ¹	1,075		1,088
2.300% notes due 2022 ¹	500		500
2.800% notes due 2022 ⁴	1,100		1,100
3.100% notes due 2022 ¹	2,300		2,300
1.250% notes due 2023 (€750 million principal value) ¹	849		858
3.650% notes due 2023 ¹	2,250		2,250
3.700% notes due 2023 ⁴	400		400
2.800% notes due 2024 ¹	800		800
3.200% notes due 2024 ⁴	950		950



1.150% notes due 2024 (€750 million principal value) ¹	849			858
3.950% notes due 2025 ¹	1,500			1,500
1.875% notes due 2026 (€500 million principal value) ¹	566			573
2.650% notes due 2026 ¹	1,150			1,150
3.125% notes due 2027 ¹	1,100			1,100
3.500% notes due 2027 ⁴	1,300			1,300
7.100% notes due 2027	141			141
6.700% notes due 2028	400			400
4.125% notes due 2028 ¹	3,000			3,000
7.500% notes due 2029 ¹	550			550
2.150% notes due 2030 (€500 million principal value) ¹	566			573
5.400% notes due 2035 ¹	600			600
6.050% notes due 2036 ¹	600			600
6.800% notes due 2036 ¹	134			134
7.000% notes due 2038	159			159
6.125% notes due 2038 ¹	1,000			1,000
4.450% notes due 2038 ¹	750			750
5.700% notes due 2040 ¹	1,000			1,000
4.500% notes due 2042 ¹	3,500			3,500
4.800% notes due 2043 ⁴	400			400
4.150% notes due 2045 ¹	850			850
3.750% notes due 2046 ¹	1,100			1,100
4.050% notes due 2047 ¹	600			600
4.350% notes due 2047 ⁴	1,000			1,000
4.625% notes due 2048 ¹	1,750			1,750
Project financing obligations ⁵	338			287
Other (including finance leases)	302			287
Total principal long-term debt	44,419			44,416
Other (fair market value adjustments, discounts and debt issuance costs)	(344		)	(348		)
Total long-term debt	44,075			44,068
Less: current portion	3,071			2,876
Long-term debt, net of current portion	$	41,004		$	41,192


1	We may redeem these notes at our option pursuant to their terms.


2	The three-month EURIBOR rate as of March 31, 2019 was approximately -0.311%. The notes may be redeemed at our option in whole, but not in part, at any time in the event of certain developments affecting U.S. taxation.


3	The three-month LIBOR rate as of March 31, 2019 was approximately 2.599%.


4	Rockwell Collins debt which remained outstanding following the Merger.


5	Project financing obligations are associated with the sale of rights to unbilled revenues related to the ongoing activity of an entity owned by Carrier.

We had no debt issuances during the quarter ended March 31, 2019 and had the following issuances of debt in 2018:



(dollars and Euro in millions)
Issuance Date	Description of Notes	Aggregate Principal Balance
August 16, 2018:	3.350% notes due 2021¹	$	1,000
	3.650% notes due 2023¹	2,250
	3.950% notes due 2025¹	1,500
	4.125% notes due 2028¹	3,000
	4.450% notes due 2038¹	750
	4.625% notes due 2048²	1,750
	LIBOR plus 0.65% floating rate notes due 2021¹	750

May 18, 2018:	1.150% notes due 2024³	€	750
	2.150% notes due 2030³	500
	EURIBOR plus 0.20% floating rate notes due 2020³	750


1	The net proceeds received from these debt issuances were used to partially finance the cash consideration portion of the purchase price for Rockwell Collins and fees, expenses and other amounts related to the acquisition of Rockwell Collins.


2	The net proceeds from these debt issuances were used to fund the repayment of commercial paper and for other general corporate purposes.


3	The net proceeds received from these debt issuances were used for general corporate purposes.

We had no debt payments during the quarter ended March 31, 2019 and had the following repayments of debt in 2018:



(dollars and Euro in millions)
Repayment Date	Description of Notes	Aggregate Principal Balance
December 14, 2018	Variable-rate term loan due 2020 (1 month LIBOR plus 1.25%)¹	$	482
May 4, 2018	1.778% junior subordinated notes	$	1,100
February 22, 2018	EURIBOR plus 0.80% floating rate notes	€	750
February 1, 2018	6.80% notes	$	99


1	This term loan was assumed in connection with the Rockwell Collins acquisition and subsequently repaid.

The average maturity of our long-term debt at March 31, 2019 is approximately 11 years. The average interest expense rate on our total borrowings for the quarters ended March 31, 2019 and 2018 were as follows:



	Quarter Ended March 31,
	2019		2018
Average interest expense rate	3.6	%	3.4	%

We have an existing universal shelf registration statement filed with the SEC, which expires on April 29, 2019. Our ability to use or renew our shelf registration statement may be limited as a result of the separation transactions; accordingly and as noted above, we entered into a new $2.0 billion revolving credit agreement and a $4.0 billion term credit agreement on March 15, 2019 to be used for general corporate purposes, including the repayment, repurchase or redemption of existing debt, and to serve as backup facilities to support additional issuances of commercial paper. We expect to renew our shelf registration statement following the separation transactions.

Income Taxes	3 Months Ended
Income Taxes	Mar. 31, 2019
Income Tax Disclosure [Abstract]
Income Tax Disclosure [Text Block]	Income Taxes The decrease in the effective tax rate for the quarter ended March 31, 2019 is primarily the result of Tax Cuts and Jobs Act of 2017 (TCJA) interpretive guidance and the absence of a TCJA tax charge recorded in the first quarter of 2018. In addition, the Company recognized a non-cash gain of approximately $40 million, primarily tax, as a result of the closure of a 2014 IRS audit of a subsidiary acquired as part of the Rockwell Collins acquisition. This gain was partially offset by the unfavorable pre-tax impact of a reversal of a related indemnity asset during the quarter of approximately $23 million. We conduct business globally and, as a result, UTC or one or more of our subsidiaries files income tax returns in the U.S. federal jurisdiction and various state and foreign jurisdictions. In the normal course of business we are subject to examination by taxing authorities throughout the world, including such major jurisdictions as Australia, Belgium, Brazil, Canada, China, France, Germany, Hong Kong, India, Italy, Japan, Mexico, Netherlands, Poland, Singapore, South Korea, Spain, Switzerland, the United Kingdom, and the United States. With few exceptions, we are no longer subject to U.S. federal, state and local, or non-U.S. income tax examinations for years before 2008. In the ordinary course of business, there is inherent uncertainty in quantifying our income tax positions. We assess our income tax positions and record tax benefits for all years subject to examination based upon management’s evaluation of the facts, circumstances, and information available at the reporting date. It is reasonably possible that a net reduction within the range of $390 million to $750 million of unrecognized tax benefits may occur within the next 12 months as a result of additional worldwide uncertain tax positions, the closure of tax statutes, or the revaluation of current uncertain tax positions arising from the issuance of legislation, regulatory or other guidance or developments in examinations, in appeals, or in the courts. See Note 15, Contingent Liabilities, for discussion regarding uncertain tax positions, included in the above range, related to pending litigation with respect to certain deductions claimed in Germany. UTC tax years 2014, 2015 and 2016 are currently under review by the Examination Division of the Internal Revenue Service (IRS), which is expected to conclude its review before the end of 2019. During the quarter ended March 31, 2019, the Company recognized a non-cash gain of approximately $40 million, primarily tax, as a result of the closure of an IRS audit of the 2014 tax year of a subsidiary acquired as part of UTC’s acquisition of Rockwell Collins. This gain was partially offset by the unfavorable pre-tax impact of a reversal of a related indemnity asset during the quarter of approximately $23 million. Another subsidiary of the Company is engaged in litigation in Italy which is currently pending before the Italian Supreme Court following favorable lower court decisions. The Italian Tax Authority announced an amnesty program which the Company is currently evaluating. Participation in the amnesty program would be expected to result in the recognition of a non-cash gain, primarily tax, in the range of $90 million to $110 million as early as the second quarter of 2019. The Company will continue to review and incorporate, as necessary, Tax Cuts and Jobs Act of 2017 (TCJA) changes related to forthcoming U.S. Treasury Regulations, other updates, and the finalization of the deemed inclusions to be reported on the Company’s 2018 U.S. federal income tax return.

Employee Benefit Plans

3 Months Ended

Mar. 31, 2019

Retirement Benefits [Abstract]

Pension and Other Postretirement Benefits Disclosure [Text Block]

Employee Benefit Plans

Pension and Postretirement Plans. We sponsor both funded and unfunded domestic and foreign defined pension and other postretirement benefit plans, and defined contribution plans. Contributions to our plans were as follows:



	Quarter Ended March 31,
(dollars in millions)	2019		2018
Defined benefit plans	$	32	$	37
Defined contribution plans	153		94

There were no contributions to our domestic defined benefit pension plans in the quarters ended March 31, 2019 and 2018. Included in the current year contributions to employer sponsored defined contribution plans is $35 million of contributions to the Rockwell Collins defined contribution plans. The following table illustrates the components of net periodic benefit cost for our defined pension and other postretirement benefit plans:



	Pension Benefits Quarter Ended March 31,						Other Postretirement Benefits Quarter Ended March 31,
(dollars in millions)	2019			2018			2019			2018
Service cost	$	87		$	93		$	1		$	1
Interest cost	340			279			8			6
Expected return on plan assets	(607		)	(563		)	(1		)	—
Amortization of prior service cost (credit)	5			(10		)	(11		)	(1		)
Recognized actuarial net loss (gain)	53			101			(3		)	(2		)
Net settlement and curtailment loss (gain)	8			(1		)	—			—
Total net periodic benefit (income) cost	$	(114	)	$	(101	)	$	(6	)	$	4

Restructuring and Other Costs

3 Months Ended

Mar. 31, 2019

Restructuring and Related Activities [Abstract]

Restructuring and Other Costs [Text Block]

Restructuring Costs

During the quarter ended March 31, 2019, we recorded net pre-tax restructuring costs totaling $112 million for new and ongoing restructuring actions. We recorded charges in the segments as follows:



(dollars in millions)
Otis	$	25
Carrier	33
Pratt & Whitney	14
Collins Aerospace Systems	39
Eliminations and other	1
Total	$	112

Restructuring charges incurred during the quarter ended March 31, 2019 primarily relate to actions initiated during 2019 and 2018, and were recorded as follows:



(dollars in millions)
Cost of sales	$	56
Selling, general and administrative	56
Total	$	112

2019 Actions. During the quarter ended March 31, 2019, we recorded net pre-tax restructuring costs of $73 million, comprised of $28 million in cost of sales and $45 million in selling, general and administrative expenses. The 2019 actions relate to ongoing cost reduction efforts, including workforce reductions and the consolidation of field and manufacturing operations.

We are targeting to complete the majority of the remaining workforce and facility related cost reduction actions during 2019 and 2020. No specific plans for other significant actions have been finalized at this time. The following table summarizes the accrual balance and utilization for the 2019 restructuring actions for the quarter ended March 31, 2019:



(dollars in millions)	Severance			Facility Exit, Lease Termination and Other Costs		Total
Net pre-tax restructuring costs	$	68		$	5	$	73
Utilization, foreign exchange and other costs	(15		)	10		(5		)
Balance at March 31, 2019	$	53		$	15	$	68

The following table summarizes expected, incurred and remaining costs for the 2019 restructuring actions by segment:



(dollars in millions)	Expected Costs		Costs Incurred Quarter Ended March 31, 2019			Remaining Costs at March 31, 2019
Otis	$	27	$	(19	)	$	8
Carrier	40		(25		)	15
Pratt & Whitney	14		(14		)	—
Collins Aerospace Systems	22		(14		)	8
Eliminations and other	1		(1		)	—
Total	$	104	$	(73	)	$	31

2018 Actions. During the quarter ended March 31, 2019, we recorded net pre-tax restructuring costs totaling $23 million for restructuring actions initiated in 2018, including $16 million in cost of sales and $7 million in selling, general and administrative expenses. The 2018 actions relate to ongoing cost reduction efforts, including workforce reductions, consolidation of field and manufacturing operations, and costs to exit legacy programs. The following table summarizes the accrual balances and utilization for the 2018 restructuring actions for the quarter ended March 31, 2019:



(dollars in millions)	Severance			Facility Exit, Lease Termination and Other Costs			Total
Restructuring accruals at December 31, 2018	$	115		$	23		$	138
Net pre-tax restructuring costs	21			2			23
Utilization, foreign exchange and other costs	(74		)	(16		)	(90		)
Balance at March 31, 2019	$	62		$	9		$	71

The following table summarizes expected, incurred and remaining costs for the 2018 restructuring actions by segment:



(dollars in millions)	Expected Costs		Costs Incurred in 2018			Costs Incurred Quarter Ended March 31, 2019			Remaining Costs at March 31, 2019
Otis	$	58	$	(48	)	$	(5	)	$	5
Carrier	107		(64		)	(7		)	36
Pratt & Whitney	3		(3		)	—			—
Collins Aerospace Systems	113		(87		)	(11		)	15
Eliminations and other	5		(5		)	—			—
Total	$	286	$	(207	)	$	(23	)	$	56

2017 and Prior Actions. During the quarter ended March 31, 2019, we recorded net pre-tax restructuring costs totaling $16 million for restructuring actions initiated in 2017 and prior. As of March 31, 2019, we have approximately $103 million of accrual balances remaining related to 2017 and prior actions.

Financial Instruments

3 Months Ended

Mar. 31, 2019

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Derivative Financial Instruments [Text Block]

Financial Instruments

We enter into derivative instruments primarily for risk management purposes, including derivatives designated as hedging instruments under the Derivatives and Hedging Topic of the FASB ASC and those utilized as economic hedges. We operate internationally and, in the normal course of business, are exposed to fluctuations in interest rates, foreign exchange rates and commodity prices. These fluctuations can increase the costs of financing, investing and operating the business. We have used derivative instruments, including swaps, forward contracts and options, to manage certain foreign currency, interest rate and commodity price exposures.

The four quarter rolling average of the notional amount of foreign exchange contracts hedging foreign currency transactions was $18.1 billion and $20.1 billion at March 31, 2019 and December 31, 2018, respectively.

The following table summarizes the fair value and presentation in the Condensed Consolidated Balance Sheets for derivative instruments as of March 31, 2019 and December 31, 2018:



(dollars in millions)	Balance Sheet Location	March 31, 2019			December 31, 2018
Derivatives designated as hedging instruments:
Foreign exchange contracts	Asset Derivatives:
	Other assets, current	$	6		$	10
	Other assets	10			12
	Total asset derivatives	$	16		$	22
	Liability Derivatives:
	Accrued liabilities	(54		)	(83		)
	Other long-term liabilities	(63		)	(111		)
	Total liability derivatives	$	(117	)	$	(194	)
Derivatives not designated as hedging instruments:
Foreign exchange contracts	Asset Derivatives:
	Other assets, current	42			44
	Other assets	12			19
	Total asset derivatives	$	54		$	63
	Liability Derivatives:
	Accrued liabilities	(47		)	(89		)
	Other long-term liabilities	(37		)	(3		)
	Total liability derivatives	$	(84	)	$	(92	)

The effect of cash flow hedging relationships on accumulated other comprehensive income for the quarters ended March 31, 2019 and 2018 are presented in the table below. The amounts of gain or (loss) are attributable to foreign exchange contract activity and are recorded as a component of Product sales when reclassified from accumulated other comprehensive income.



	Quarter Ended March 31,
(dollars in millions)	2019		2018
Gain recorded in Accumulated other comprehensive loss	$	7	$	45
Loss (gain) reclassified from Accumulated other comprehensive loss into Product sales	4		(27		)

The table above reflects the effect of cash flow hedging relationships on the Condensed Consolidated Statements of Operations for the quarters ended March 31, 2019 and 2018. The Company utilizes the critical terms match method in assessing derivatives for hedge effectiveness. Accordingly, the hedged items and derivatives designated as hedging instruments are highly effective.

We have approximately €4.95 billion of euro-denominated long-term debt and €750 million of euro-denominated commercial paper borrowings outstanding, which qualify as a net investment hedge against our investments in European businesses. As of March 31, 2019, the net investment hedge is deemed to be effective.

Assuming current market conditions continue, a $49 million pre-tax loss is expected to be reclassified from Accumulated other comprehensive loss into Product sales to reflect the fixed prices obtained from foreign exchange hedging within the next 12 months. At March 31, 2019, all derivative contracts accounted for as cash flow hedges will mature by April 2023.

The effect of derivatives not designated as hedging instruments within Other income, net, on the Condensed Consolidated Statement of Operations was as follows:



	Quarter Ended March 31,
(dollars in millions)	2019		2018
Foreign exchange contracts	$	18	$	51

Fair Value Measurements

3 Months Ended

Mar. 31, 2019

Fair Value Disclosures [Abstract]

Fair Value Disclosures [Text Block]

Fair Value Measurements

In accordance with the provisions of ASC 820, the following tables provide the valuation hierarchy classification of assets and liabilities that are carried at fair value and measured on a recurring and nonrecurring basis in our Condensed Consolidated Balance Sheet as of March 31, 2019 and December 31, 2018:



	March 31, 2019
(dollars in millions)	Total			Level 1		Level 2			Level 3
Recurring fair value measurements:
Available-for-sale securities	$	55		$	55	$	—		$	—
Derivative assets	70			—		70			—
Derivative liabilities	(201		)	—		(201		)	—



	December 31, 2018
(dollars in millions)	Total			Level 1		Level 2			Level 3
Recurring fair value measurements:
Available-for-sale securities	$	51		$	51	$	—		$	—
Derivative assets	85			—		85			—
Derivative liabilities	(286		)	—		(286		)	—

Valuation Techniques. Our available-for-sale securities include equity investments that are traded in active markets, either domestically or internationally, and are measured at fair value using closing stock prices from active markets. Our derivative assets and liabilities include foreign exchange contracts that are measured at fair value using internal models based on observable market inputs such as forward rates, interest rates, our own credit risk and our counterparties' credit risks.

As of March 31, 2019, there has not been any significant impact to the fair value of our derivative liabilities due to our own credit risk. Similarly, there has not been any significant adverse impact to our derivative assets based on our evaluation of our counterparties' credit risks.

The following table provides carrying amounts and fair values of financial instruments that are not carried at fair value in our Condensed Consolidated Balance Sheet at March 31, 2019 and December 31, 2018:



	March 31, 2019						December 31, 2018
(dollars in millions)	Carrying Amount			Fair Value			Carrying Amount			Fair Value
Long-term receivables	$	580		$	557		$	334		$	314
Customer financing notes receivable	288			286			272			265
Short-term borrowings	(1,111		)	(1,111		)	(1,469		)	(1,469		)
Long-term debt (excluding finance leases)	(43,988		)	(45,643		)	(43,996		)	(44,003		)
Long-term liabilities	(498		)	(465		)	(508		)	(467		)

The following table provides the valuation hierarchy classification of assets and liabilities that are not carried at fair value in our Condensed Consolidated Balance Sheet at March 31, 2019 and December 31, 2018:



	March 31, 2019
(dollars in millions)	Total			Level 1		Level 2			Level 3
Long-term receivables	$	557		$	—	$	557		$	—
Customer financing notes receivable	286			—		286			—
Short-term borrowings	(1,111		)	—		(849		)	(262		)
Long-term debt (excluding finance leases)	(45,643		)	—		(45,213		)	(430		)
Long-term liabilities	(465		)	—		(465		)	—



	December 31, 2018
(dollars in millions)	Total			Level 1		Level 2			Level 3
Long-term receivables	$	314		$	—	$	314		$	—
Customer financing notes receivable	265			—		265			—
Short-term borrowings	(1,469		)	—		(1,258		)	(211		)
Long-term debt (excluding finance leases)	(44,003		)	—		(43,620		)	(383		)
Long-term liabilities	(467		)	—		(467		)	—

We had commercial aerospace financing and other contractual commitments totaling approximately $16.2 billion and $15.5 billion as of March 31, 2019 and December 31, 2018, respectively, related to commercial aircraft and certain contractual rights to provide product on new aircraft platforms. Associated risks on these commitments from changes in interest rates are mitigated because interest rates are variable during the commitment term and are set at the date of funding based on current market conditions, the fair value of the underlying collateral and the credit worthiness of the customers. As a result, the fair value of these financings is expected to equal the amounts funded.

- Definition

The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information.

+ References + Details

Long-Term Financing Receivables

3 Months Ended

Mar. 31, 2019

Receivables [Abstract]

Long-Term Financing Receivables [Text Block]

Long-Term Financing Receivables

Our long-term financing receivables primarily represent balances related to the aerospace businesses such as long-term trade accounts receivable, leases, and notes receivable. We also have other long-term receivables in our commercial businesses; however, both the individual and aggregate amounts of those other receivables are not significant. The following table summarizes the balance by class of aerospace business related long-term receivables as of March 31, 2019 and December 31, 2018.



(dollars in millions)	March 31, 2019		December 31, 2018
Long-term trade accounts receivable	$	297	$	269
Notes and leases receivable	257		258
Total long-term receivables	$	554	$	527

Customer credit ratings range from customers with an extremely strong capacity to meet financial obligations to customers whose uncollateralized receivable is in default. There can be no assurance that actual results will not differ from estimates or that consideration of these factors in the future will not result in an increase or decrease to the allowance for credit losses on long-term receivables. Based upon the customer credit ratings, approximately $150 million of our total long-term receivables were considered to bear high credit risk as of March 31, 2019 and December 31, 2018.

For long-term trade accounts receivable, we evaluate credit risk and collectability individually to determine if an allowance is necessary. Our long-term receivables reflected in the table above, which include reserves of $17 million and $16 million as of March 31, 2019 and December 31, 2018, respectively, are individually evaluated for impairment. At March 31, 2019 and December 31, 2018, we did not have any significant balances that are considered to be delinquent, on non-accrual status, past due 90 days or more, or considered to be impaired.

Accumulated Other Comprehensive Loss

3 Months Ended

Mar. 31, 2019

Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]

Accumulated Other Comprehensive Income (Loss) Disclosure [Text Block]

Accumulated Other Comprehensive Loss

A summary of the changes in each component of Accumulated other comprehensive loss, net of tax for the quarters ended March 31, 2019 and 2018 is provided below:



	Quarter Ended March 31, 2019
(dollars in millions)	Foreign Currency Translation			Defined Benefit Pension and Post- retirement Plans			Unrealized Gains (Losses) on Available-for-Sale Securities		Unrealized Hedging (Losses) Gains			Accumulated Other Comprehensive (Loss) Income
Balance at December 31, 2018	$	(3,442	)	$	(5,718	)	$	—	$	(173	)	$	(9,333	)
Other comprehensive income (loss) before reclassifications, net	530			(1		)	—		7			536
Amounts reclassified, pre-tax	1			44			—		4			49
Tax benefit reclassified	(13		)	(10		)	—		(3		)	(26		)
ASU 2018-02 adoption impact	(8		)	(737		)	—		—			(745		)
Balance at March 31, 2019	$	(2,932	)	$	(6,422	)	$	—	$	(165	)	$	(9,519	)



	Quarter Ended March 31, 2018
(dollars in millions)	Foreign Currency Translation			Defined Benefit Pension and Post- retirement Plans			Unrealized Gains (Losses) on Available-for-Sale Securities			Unrealized Hedging (Losses) Gains			Accumulated Other Comprehensive (Loss) Income
Balance at December 31, 2017	$	(2,950	)	$	(4,652	)	$	5		$	72		$	(7,525	)
Other comprehensive income (loss) before reclassifications, net	376			8			—			45			429
Amounts reclassified, pre-tax	—			88			—			(27		)	61
Tax expense (benefit) reclassified	130			(23		)	—			(4		)	103
ASU 2016-01 adoption impact	—			—			(5		)	—			(5		)
Balance at March 31, 2018	$	(2,444	)	$	(4,579	)	$	—		$	86		$	(6,937	)

In February 2018, the FASB issued ASU 2018-02, Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income (Topic 220). The new standard allows companies to reclassify to retained earnings the stranded tax effects in accumulated other comprehensive income (AOCI) from the TCJA. We elected to reclassify the income tax effects of TCJA from AOCI of $745 million to retained earnings, effective January 1, 2019.

In January 2016, the FASB issued ASU 2016-01, Financial Instruments - Overall: Recognition and Measurement of Financial Assets and Financial Liabilities. This ASU modifies how entities measure equity investments and present changes in the fair value of financial liabilities. Upon adoption, investments that do not result in consolidation and are not accounted for under the equity method generally must be carried at fair value, with changes in fair value recognized in net income. We had approximately $5 million of unrealized gains on these securities recorded in Accumulated other comprehensive loss in our Consolidated Balance Sheet as of December 31, 2017. We adopted this standard effective January 1, 2018, with these amounts recorded directly to retained earnings as of that date.

Amounts reclassified that relate to our defined benefit pension and postretirement plans include the amortization of prior service costs and actuarial net losses recognized during each period presented. These costs are recorded as components of net periodic pension cost for each period presented (see Note 7 for additional details).

All noncontrolling interests with redemption features, such as put options, that are not solely within our control (redeemable noncontrolling interests) are reported in the mezzanine section of the Condensed Consolidated Balance Sheet, between liabilities and equity, at the greater of redemption value or initial carrying value.

Variable Interest Entities

3 Months Ended

Mar. 31, 2019

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Variable Interest Entity Disclosure [Text Block]

Variable Interest Entities

Pratt & Whitney holds a 61% net interest in the International Aero Engines AG (IAE) collaboration with MTU Aero Engines AG (MTU) and Japanese Aero Engines Corporation (JAEC) and a 49.5% ownership interest in IAE. IAE's business purpose is to coordinate the design, development, manufacturing and product support of the V2500 program through involvement with the collaborators. Additionally, Pratt & Whitney, JAEC and MTU are participants in International Aero Engines, LLC (IAE LLC), whose business purpose is to coordinate the design, development, manufacturing and product support for the PW1100G-JM engine for the Airbus A320neo aircraft and the PW1400G-JM engine for the Irkut MC21 aircraft. Pratt & Whitney holds a 59% net interest and a 59% ownership interest in IAE LLC. IAE and IAE LLC retain limited equity with the primary economics of the programs passed to the participants. As such, we have determined that IAE and IAE LLC are variable interest entities with Pratt & Whitney the primary beneficiary. IAE and IAE LLC have, therefore, been consolidated. The carrying amounts and classification of assets and liabilities for variable interest entities in our Condensed Consolidated Balance Sheet are as follows:



(dollars in millions)	March 31, 2019		December 31, 2018
Current assets	$	4,649	$	4,732
Noncurrent assets	1,728		1,600
Total assets	$	6,377	$	6,332

Current liabilities	$	4,676	$	4,946
Noncurrent liabilities	1,943		1,898
Total liabilities	$	6,619	$	6,844

Guarantees

3 Months Ended

Mar. 31, 2019

Service and Product Warranties and Product Performance Guarantees [Abstract]

Guarantees [Text Block]

Guarantees

We extend a variety of financial, market value and product performance guarantees to third parties. There have been no material changes to financial guarantees outstanding since December 31, 2018. The changes in the carrying amount of service and product warranties and product performance guarantees for the quarters ended March 31, 2019 and 2018 are as follows:



(dollars in millions)	2019			2018
Balance as of January 1	$	1,449		$	1,146
Warranties and performance guarantees issued	137			115
Settlements made	(110		)	(106		)
Other	9			6
Balance as of March 31	$	1,485		$	1,161

Contingent Liabilities	3 Months Ended
Contingent Liabilities	Mar. 31, 2019
Commitments and Contingencies Disclosure [Abstract]
Contingent Liabilities [Text Block]	Contingent Liabilities Summarized below are the matters previously described in Note 18 of the Notes to the Consolidated Financial Statements in our 2018 Annual Report, incorporated by reference in our 2018 Form 10-K, updated as applicable. Except as otherwise noted, while we are unable to predict the final outcome, based on information currently available, we do not believe that resolution of any of the following matters will have a material adverse effect upon our competitive position, results of operations, cash flows or financial condition. Environmental. Our operations are subject to environmental regulation by federal, state and local authorities in the United States and authorities with jurisdiction over our foreign operations. As described in Note 1 to the Consolidated Financial Statements in our 2018 Annual Report, we have accrued for the costs of environmental remediation activities, including but not limited to investigatory, remediation, operating and maintenance costs and performance guarantees, and periodically reassess these amounts. We believe that the likelihood of incurring losses materially in excess of amounts accrued is remote. Additional information pertaining to environmental matters is included in Note 1 to the Consolidated Financial Statements in our 2018 Annual Report. Government. In the ordinary course of business, the Company and its subsidiaries and our properties are subject to regulatory and governmental examinations, information gathering requests, inquiries, investigations and threatened legal actions and proceedings. For example, we are now, and believe that, in light of the current U.S. Government contracting environment, we will continue to be the subject of one or more U.S. Government investigations. Such U.S. Government investigations often take years to complete and could result in administrative, civil or criminal liabilities, including repayments, fines, treble and other damages, forfeitures, restitution or penalties, or could lead to suspension or debarment of U.S. Government contracting privileges. For instance, if we or one of our business units were charged with wrongdoing as a result of any of these investigations or other government investigations (including violations of certain environmental or export laws) the U.S. Government could suspend us from bidding on or receiving awards of new U.S. Government contracts pending the completion of legal proceedings. If convicted or found liable, the U.S. Government could fine and debar us from new U.S. Government contracting for a period generally not to exceed three years. The U.S. Government also reserves the right to debar a contractor from receiving new government contracts for fraudulent, criminal or other seriously improper conduct. The U.S. Government could void any contracts found to be tainted by fraud. Our contracts with the U.S. Government are also subject to audits. Like many defense contractors, we have received audit reports recommending the reduction of certain contract prices because, for example, cost or pricing data or cost accounting practices used to price and negotiate those contracts may not have conformed to government regulations. Some of these audit reports recommend that certain payments be repaid, delayed, or withheld, and may involve substantial amounts. We have made voluntary refunds in those cases we believe appropriate, have settled some allegations and, in some cases, continue to negotiate and/or litigate. In addition, we accrue for liabilities associated with those matters that are probable and can be reasonably estimated. The most likely settlement amount to be incurred is accrued based upon a range of estimates. Where no amount within a range of estimates is more likely, then we accrued the minimum amount. Legal Proceedings. Cost Accounting Standards Claims In April 2019, a Divisional Administrative Contracting Officer (DACO) of the United States Defense Contract Management Agency (DCMA) asserted a claim against Pratt & Whitney to recover overpayments of approximately $1.73 billion plus interest (approximately $473 million through March 31, 2019). The claim is based on Pratt & Whitney's alleged noncompliance with cost accounting standards from January 1, 2007 to March 31, 2019, due to its method of allocating independent research and development costs to government contracts. Pratt & Whitney believes that the claim is without merit and will be filing an appeal to the Armed Services Board of Contract Appeals (ASBCA). As previously disclosed, in December 2013, a DCMA DACO asserted a claim against Pratt & Whitney to recover overpayments of approximately $177 million plus interest (approximately $87.5 million through March 31, 2019). The claim is based on Pratt & Whitney's alleged noncompliance with cost accounting standards from January 1, 2005 to December 31, 2012, due to its method of determining the cost of collaborator parts used in the calculation of material overhead costs for government contracts. On March 18, 2014, Pratt & Whitney filed an appeal to the ASBCA. We continue to believe that the claim is without merit and the matter is currently scheduled for trial later this year. On December 18, 2018, a DCMA DACO issued a second claim against Pratt & Whitney that similarly alleges that its method of determining the cost of collaborator parts does not comply with the cost accounting standards for calendar years 2013 through 2017. This second claim demands payment of $269 million plus interest (approximately $43.4 million), which we also believe is without merit and which Pratt & Whitney appealed to the ASBCA on January 9, 2019. German Tax Litigation As previously disclosed, UTC has been involved in administrative review proceedings with the German Tax Office, which concern approximately €215 million (approximately $244 million) of tax benefits that we have claimed related to a 1998 reorganization of the corporate structure of Otis operations in Germany. Upon audit, these tax benefits were disallowed by the German Tax Office. UTC estimates interest associated with the aforementioned tax benefits is an additional approximately €118 million (approximately $134 million). On August 3, 2012, we filed suit in the local German Tax Court (Berlin-Brandenburg). In March 2016, the local German Tax Court dismissed our suit, and we appealed this decision to the German Federal Tax Court (FTC). Following a hearing on July 24, 2018, the FTC remanded the matter to the local German Tax Court for further proceedings. In 2015, UTC made tax and interest payments to German tax authorities of €275 million (approximately $300 million) in order to avoid additional interest accruals pending final resolution of this matter. Asbestos Matters As previously disclosed, like many other industrial companies, we and our subsidiaries have been named as defendants in lawsuits alleging personal injury as a result of exposure to asbestos integrated into certain of our products or business premises. While we have never manufactured asbestos and no longer incorporate it in any currently-manufactured products, certain of our historical products, like those of many other manufacturers, have contained components incorporating asbestos. A substantial majority of these asbestos-related claims have been dismissed without payment or were covered in full or in part by insurance or other forms of indemnity. Additional cases were litigated and settled without any insurance reimbursement. The amounts involved in asbestos related claims were not material individually or in the aggregate in any year. Our estimated total liability to resolve all pending and unasserted potential future asbestos claims through 2059 is approximately $333 million and is principally recorded in Other long-term liabilities on our Condensed Consolidated Balance Sheet as of March 31, 2019. This amount is on a pre-tax basis, not discounted, and excludes the Company’s legal fees to defend the asbestos claims (which will continue to be expensed by the Company as they are incurred). In addition, the Company has an insurance recovery receivable for probable asbestos related recoveries of approximately $147 million, which is included primarily in Other assets on our Condensed Consolidated Balance Sheet as of March 31, 2019. The amounts recorded by UTC for asbestos-related liabilities and insurance recoveries are based on currently available information and assumptions that we believe are reasonable. Our actual liabilities or insurance recoveries could be higher or lower than those recorded if actual results vary significantly from the assumptions. Key variables in these assumptions include the number and type of new claims to be filed each year, the outcomes or resolution of such claims, the average cost of resolution of each new claim, the amount of insurance available, the allocation methodologies, the contractual terms with each insurer with whom we have reached settlements, the resolution of coverage issues with other excess insurance carriers with whom we have not yet achieved settlements, and the solvency risk with respect to our insurance carriers. Other factors that may affect our future liability include uncertainties surrounding the litigation process from jurisdiction to jurisdiction and from case to case, legal rulings that may be made by state and federal courts, and the passage of state or federal legislation. At the end of each year, the Company will evaluate all of these factors and, with input from an outside actuarial expert, make any necessary adjustments to both our estimated asbestos liabilities and insurance recoveries. Other. As described in Note 14 of this Form 10-Q and Note 17 to the Consolidated Financial Statements in our 2018 Annual Report, we extend performance and operating cost guarantees beyond our normal warranty and service policies for extended periods on some of our products. We have accrued our estimate of the liability that may result under these guarantees and for service costs that are probable and can be reasonably estimated. We also have other commitments and contingent liabilities related to legal proceedings, self-insurance programs and matters arising out of the normal course of business. We accrue contingencies based upon a range of possible outcomes. If no amount within this range is a better estimate than any other, then we accrue the minimum amount. In the ordinary course of business, the Company and its subsidiaries are also routinely defendants in, parties to or otherwise subject to many pending and threatened legal actions, claims, disputes and proceedings. These matters are often based on alleged violations of contract, product liability, warranty, regulatory, environmental, health and safety, employment, intellectual property, tax and other laws. In some instances, claims for substantial monetary damages are asserted against the Company and its subsidiaries and could result in fines, penalties, compensatory or treble damages or non-monetary relief. We do not believe that these matters will have a material adverse effect upon our competitive position, results of operations, cash flows or financial condition.

Leases (Notes)

3 Months Ended

Mar. 31, 2019

Leases [Abstract]

Lessee, Operating Leases [Text Block]

Leases

ASU 2016-02, Leases (Topic 842) and its related amendments (collectively, the New Lease Accounting Standard) are effective for reporting periods beginning after December 15, 2018. We adopted the New Lease Accounting Standard effective January 1, 2019 and elected the modified retrospective approach in which results for periods before 2019 were not adjusted for the new standard and the cumulative effect of the change in accounting was recognized through retained earnings at the date of adoption.

The New Lease Accounting Standard establishes a right-of-use model that requires a lessee to record a right-of-use asset and a lease liability on the Condensed Consolidated Balance Sheet for all leases with terms longer than 12 months. Leases are classified as either finance or operating, with classification affecting the pattern of expense recognition in the Condensed Consolidated Statement of Operations. In addition, this standard requires a lessor to classify leases as either sales-type, finance or operating. A lease will be treated as a sale if it transfers all of the risks and rewards, as well as control of the underlying asset, to the lessee. If risks and rewards are conveyed without the transfer of control, the lease is treated as financing. If the lessor doesn’t convey risks and rewards or control, the lease is treated as operating.

We have elected certain of the practical expedients available under the New Lease Accounting Standard upon adoption. We have applied the practical expedient which allows prospective transition to the New Lease Accounting Standard on January 1, 2019. Under the transition practical expedient, we did not reassess lease classification, embedded leases or initial direct costs. We have applied the practical expedient for short-term leases. We have lease agreements with lease and non-lease components. We have elected the practical expedients to combine these components for certain equipment leases. Additionally, for certain equipment leases, we apply a portfolio approach to effectively account for the operating lease right-of-use assets and liabilities. The adoption of the New Lease Accounting Standard did not have a material effect on our Consolidated Statement of Operations or Consolidated Statement of Cash Flows. Upon adoption, we recorded a $2.6 billion right-of-use asset and a $2.7 billion lease liability. The adoption of the New Lease Accounting Standard had an immaterial impact on retained earnings.

We enter into lease agreements for the use of real estate space, vehicles, information technology equipment, and certain other equipment under operating and finance leases. We determine if an arrangement contains a lease at inception. Operating leases are included in Operating lease right-of-use assets, Accrued liabilities, and Operating lease liabilities in our Condensed Consolidated Balance Sheet. Finance leases are not considered significant to our Condensed Consolidated Balance Sheet or Condensed Consolidated Statement of Operations. Finance lease right-of-use assets at March 31, 2019 of $81 million are included in Other assets in our Condensed Consolidated Balance Sheet. Finance lease liabilities at March 31, 2019 of $86 million are included in Long term debt currently due, and Long term debt in our Condensed Consolidated Balance Sheet.

Right-of-use assets represent our right to use an underlying asset for the lease term and lease liabilities represent our obligation to make lease payments arising from the lease. Lease right-of-use assets and liabilities are recognized at commencement date based on the present value of lease payments over the lease term. As most of our leases do not provide an implicit rate, we use our incremental borrowing rate based on the information available at commencement date in determining the present value of lease payments, and use the implicit rate when readily determinable. We determine our incremental borrowing rate through market sources including relevant industry rates. Our lease right-of-use assets also include any lease pre-payments and exclude lease incentives. Certain of our leases include variable payments, which may vary based upon changes in facts or circumstances after the start of the lease. We exclude variable payments from lease right-of-use assets and lease liabilities, to the extent not considered fixed, and instead, expense variable payments as incurred. Variable lease expense and lease expense for short duration contracts is not a material component of lease expense. Our leases generally have remaining lease terms of 1 to 20 years, some of which include options to extend leases. The majority of our leases with options to extend are up to 5 years with the ability to terminate the lease within 1 year. The exercise of lease renewal options is at our sole discretion and our lease right-of-use assets and liabilities reflect only the options we are reasonably certain that we will exercise. Lease expense is recognized on a straight-line basis over the lease term.

In limited instances we act as a lessor, primarily for commercial aerospace engines and certain heating, ventilation and air conditioning (HVAC) systems and commercial equipment, all of which are classified as operating leases. These leases are not significant to our Condensed Consolidated Balance Sheet or Condensed Consolidated Statement of Operations.

Operating lease expense for the quarter ended March 31, 2019 was $159 million.

Supplemental cash flow information related to operating leases was as follows:



(dollars in millions)	Quarter Ended March 31, 2019
Operating cash flows for the measurement of operating lease liabilities	$	(145	)
Operating lease right-of-use assets obtained in exchange for operating lease obligations	27

Operating lease right-of-use assets and liabilities are reflected on our Condensed Consolidated Balance Sheet as follows:



(dollars in millions, except lease term and discount rate)	March 31, 2019
Operating lease right-of-use assets	$	2,533

Accrued liabilities	$	(582	)
Operating lease liabilities	(2,020		)
Total operating lease liabilities	$	(2,602	)

Supplemental balance sheet information related to operating leases was as follows:



	March 31, 2019
Weighted Average Remaining Lease Term (in years)	6.9
Weighted Average Discount Rate	3.6	%

Undiscounted maturities of operating lease liabilities are as follows:



(dollars in millions)	Operating ¹
2019	$	533
2020	540
2021	446
2022	327
2023	242
Thereafter	776
Total undiscounted lease payments	2,864
Less imputed interest	(262		)
Total discounted lease payments	$	2,602

1 Operating lease payments include $228 million related to options to extend lease terms that are reasonably certain of being exercised.

Prior to the adoption of the New Lease Accounting Standard, rental commitments on an undiscounted basis were approximately $2.9 billion at December 31, 2018 under long-term non-cancelable operating leases and were payable as follows: $683 million in 2019, $544 million in 2020, $407 million in 2021, $301 million in 2022, $235 million in 2023 and $746 million thereafter.

Segment Financial Data

3 Months Ended

Mar. 31, 2019

Segment Reporting [Abstract]

Segment Reporting Disclosure [Text Block]

Note 17: Segment Financial Data

Our operations are classified into four principal segments: Otis, Carrier, Pratt & Whitney, and Collins Aerospace Systems. The segments are generally based on the management structure of the businesses and the grouping of similar operating companies, where each management organization has general operating autonomy over diversified products and services.

Total sales by segment include inter-segment sales, which are generally made at prices approximating those that the selling entity is able to obtain on external sales. Results for the quarters ended March 31, 2019 and 2018 are as follows:



	Net Sales						Operating Profits						Operating Profit Margins
(dollars in millions)	2019			2018			2019			2018			2019		2018
Otis	$	3,096		$	3,037		$	426		$	450		13.8	%	14.8	%
Carrier	4,323			4,376			529			592			12.2	%	13.5	%
Pratt & Whitney	4,817			4,329			433			413			9.0	%	9.5	%
Collins Aerospace Systems	6,513			3,817			856			588			13.1	%	15.4	%
Total segments	18,749			15,559			2,244			2,043			12.0	%	13.1	%
Eliminations and other	(384		)	(317		)	(101		)	(11		)
General corporate expenses	—			—			(98		)	(104		)
Consolidated	$	18,365		$	15,242		$	2,045		$	1,928		11.1	%	12.6	%

Geographic sales are attributed to the geographic regions based on their location of origin. Segment information for the quarters ended March 31, 2019 and 2018 is as follows:



	2019										2018
(dollars in millions)	Otis		Carrier		Pratt & Whitney		Collins Aerospace Systems		Total		Otis		Carrier		Pratt & Whitney		Collins Aerospace Systems		Total
United States	$	912	$	2,214	$	3,732	$	4,730	$	11,588	$	845	$	2,095	$	3,121	$	2,654	$	8,715
Europe	955		1,292		108		1,024		3,379		1,006		1,384		173		607		3,170
Asia Pacific	976		612		255		189		2,032		922		685		368		84		2,059
Other	253		205		722		570		1,750		264		212		667		472		1,615
Total segment	$	3,096	$	4,323	$	4,817	$	6,513	$	18,749	$	3,037	$	4,376	$	4,329	$	3,817	$	15,559

Segment sales disaggregated by product type for the quarters ended March 31, 2019 and 2018 are as follows:



	2019										2018
(dollars in millions)	Otis		Carrier		Pratt & Whitney		Collins Aerospace Systems		Total		Otis		Carrier		Pratt & Whitney		Collins Aerospace Systems		Total
Commercial and industrial, non aerospace	$	3,096	$	4,323	$	23	$	14	$	7,456	$	3,037	$	4,376	$	21	$	15	$	7,449
Commercial aerospace	—		—		3,375		4,828		8,203		—		—		3,199		2,911		6,110
Military aerospace	—		—		1,419		1,671		3,090		—		—		1,109		891		2,000
Total segment	$	3,096	$	4,323	$	4,817	$	6,513	$	18,749	$	3,037	$	4,376	$	4,329	$	3,817	$	15,559

Segment sales disaggregated by sales type for the quarters ended March 31, 2019 and 2018 are as follows:



	2019										2018
(dollars in millions)	Otis		Carrier		Pratt & Whitney		Collins Aerospace Systems		Total		Otis		Carrier		Pratt & Whitney		Collins Aerospace Systems		Total
Product	$	1,279	$	3,566	$	2,973	$	5,406	$	13,224	$	1,219	$	3,597	$	2,537	$	3,188	$	10,541
Service	1,817		757		1,844		1,107		5,525		1,818		779		1,792		629		5,018
Total segment	$	3,096	$	4,323	$	4,817	$	6,513	$	18,749	$	3,037	$	4,376	$	4,329	$	3,817	$	15,559

Accounting Pronouncements	3 Months Ended
Accounting Pronouncements	Mar. 31, 2019
New Accounting Pronouncements and Changes in Accounting Principles [Abstract]
New Accounting Pronouncements, Policy [Text Block]	Accounting Pronouncements In August 2018, the FASB issued ASU 2018-13, Fair Value Measurement (Topic 820): Disclosure Framework—Changes to the Disclosure Requirements for Fair Value Measurement. The new standard removes the disclosure requirements for the amount of and reasons for transfers between Level 1 and Level 2 of the fair value hierarchy. This standard did not have a material impact on our financial statement disclosures. We early adopted this standard effective January 1, 2019. In August 2018, the FASB issued ASU 2018-14, Compensation—Retirement Benefits—Defined Benefit Plans—General (Subtopic 715-20): Disclosure Framework—Changes to the Disclosure Requirements for Defined Benefit Plans. The new standard includes updates to the disclosure requirements for defined benefit plans including several additions, deletions and modifications to the disclosure requirements. The provisions of this ASU are effective for years beginning after December 15, 2020, with early adoption permitted. We are currently evaluating the impact of this ASU. In August 2018, the FASB issued ASU 2018-15, Intangibles—Goodwill and Other—Internal-Use Software (Subtopic 350-40): Customer’s Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That Is a Service Contract. The new standard provides updated guidance surrounding implementation costs associated with cloud computing arrangements that are service contracts. The provisions of this ASU are effective for years beginning after December 15, 2020, with early adoption permitted. We are currently evaluating the impact of this ASU. In October 2018, the FASB issued ASU 2018-17, Consolidation (Topic 810): Targeted Improvements to Related Party Guidance for Variable Interest Entities. The amendments in this update for determining whether a decision-making fee is a variable interest require reporting entities to consider indirect interests held through related parties under common control on a proportional basis rather than as the equivalent of a direct interest in its entirety (as currently required in generally accepted accounting principles (GAAP)). Therefore, these amendments likely will result in more decision makers not having a variable interest through their decision-making arrangements. These amendments also will create alignment between determining whether a decision making fee is a variable interest and determining whether a reporting entity within a related party group is the primary beneficiary of a VIE. If fewer decision-making fees are considered variable interests, the focus on determining which party within a related party group under common control may have a controlling financial interest will be shifted to the variable interest holders in the group with more significant economic interests. This will significantly reduce the risk that decision makers with insignificant direct and indirect interests could be deemed the primary beneficiary of a VIE. The provisions of this ASU are effective for years beginning after December 15, 2019, with early adoption permitted. We are currently evaluating the impact of this ASU. In November 2018, the FASB issued ASU 2018-18, Collaborative Arrangements (Topic 808): Clarifying the Interaction between Topic 808 and Topic 606. The amendments in this update make targeted improvements GAAP for collaborative arrangements as follows: clarify that certain transactions between collaborative arrangement participants should be accounted for as revenue under Topic 606 when the collaborative arrangement participant is a customer in the context of a unit of account. In those situations, all the guidance in Topic 606 should be applied, including recognition, measurement, presentation, and disclosure requirements; add unit-of-account guidance in Topic 808 to align with the guidance in Topic 606 (that is, a distinct good or service) when an entity is assessing whether the collaborative arrangement or a part of the arrangement is within the scope of Topic 606; and require that in a transaction with a collaborative arrangement participant that is not directly related to sales to third parties, presenting the transaction together with revenue recognized under Topic 606 is precluded if the collaborative arrangement participant is not a customer. The provisions of this ASU are effective for years beginning after December 15, 2019, with early adoption permitted. We are currently evaluating the impact of this ASU.

Acquisitions, Dispositions, Goodwill and Other Intangible Assets Business Acquisitions, Dispositions, Goodwill and Intangible Assets (Tables)

3 Months Ended

Mar. 31, 2019

Business Acquisition, Pro Forma Information, Nonrecurring Adjustment [Line Items]

Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]

The following is the expected amortization of intangible assets for the years 2019 through 2024, which reflects the pattern of expected economic benefit on certain aerospace intangible assets.



(dollars in millions)	Remaining 2019		2020		2021		2022		2023		2024
Amortization expense	$	1,092	$	1,427	$	1,438	$	1,434	$	1,435	$	1,422

Intangible Assets Disclosure [Table Text Block]

Identifiable intangible assets are comprised of the following:



	March 31, 2019					December 31, 2018
(dollars in millions)	Gross Amount		Accumulated Amortization			Gross Amount		Accumulated Amortization
Amortized:
Service portfolios	$	2,168	$	(1,627	)	$	2,164	$	(1,608	)
Patents and trademarks	362		(242		)	361		(236		)
Collaboration intangible assets	4,599		(723		)	4,509		(649		)
Customer relationships and other	22,651		(4,841		)	22,525		(4,560		)
	29,780		(7,433		)	29,559		(7,053		)
Unamortized:
Trademarks and other	3,933		—			3,918		—
Total	$	33,713	$	(7,433	)	$	33,477	$	(7,053	)

Schedule of Goodwill [Table Text Block]

Changes in our goodwill balances for the quarter ended March 31, 2019 were as follows:



(dollars in millions)	Balance as of January 1, 2019		Goodwill Resulting from Business Combinations		Foreign Currency Translation and Other			Balance as of March 31, 2019
Otis	$	1,688	$	7	$	(11	)	$	1,684
Carrier	9,835		1		69			9,905
Pratt & Whitney	1,567		—		(4		)	1,563
Collins Aerospace Systems	35,001		85		132			35,218
Total Segments	48,091		93		186			48,370
Eliminations and other	21		—		1			22
Total	$	48,112	$	93	$	187		$	48,392

Rockwell Collins [Member]

Business Acquisition, Pro Forma Information, Nonrecurring Adjustment [Line Items]

Business Acquisition, Pro Forma Information, Nonrecurring Adjustments [Table Text Block]

Supplemental Pro-Forma Data:



	Quarter Ended March 31,
(dollars in millions, except per share amounts)	2019		2018
Net sales	$	18,360	$	17,320
Net income attributable to common shareowners	$	1,484	$	1,475
Basic earnings per share of common stock	$	1.74	$	1.73
Diluted earnings per share of common stock	$	1.72	$	1.71



	Quarter Ended March 31,
(dollars in millions)	2019			2018
Amortization of inventory and fixed asset fair value adjustment ¹	$	141		$	(5	)
Amortization of acquired Rockwell Collins intangible assets, net ²	—			(53		)
Utilization of contractual customer obligation ³	—			2
UTC/Rockwell Collins fees for advisory, legal, accounting services ⁴	2			26
Interest expense incurred on acquisition financing, net ⁵	—			(76		)
Elimination of capitalized pre-production engineering amortization ⁶	—			14
Adjustment to net periodic pension cost ⁷	—			11
Adjustment to reflect the adoption of ASC 606 ⁸	—			29
Elimination of entities held for sale ⁹	(5		)	(7		)
	$	138		$	(59	)


1	Reflects the elimination of the inventory step-up amortization recorded by UTC in 2019 as this would have been completed within the first two quarters of 2017. Additionally, this adjustment reflects the amortization of the fixed asset fair value adjustment as of the acquisition date.


2	Reflects the additional amortization of the acquired Rockwell Collins' intangible assets recognized at fair value in purchase accounting and eliminates the historical Rockwell Collins intangible asset amortization expense.


3	Reflects the additional amortization of liabilities recognized for acquired contracts with terms less favorable than could be realized in market transactions as of the acquisition date and eliminates Rockwell Collins historical amortization of these liabilities.


4	Reflects the elimination of transaction-related fees incurred by UTC and Rockwell Collins in connection with the acquisition and assumes all of the fees were incurred during the first quarter of 2017.


5	Reflects the additional interest expense incurred on debt to finance our acquisition of Rockwell Collins and reduces interest expense for the debt fair value adjustment which would have been amortized.


6	Reflects the elimination of Rockwell Collins capitalized pre-production engineering amortization to conform to UTC policy.


7	Reflects adjustments for the elimination of amortization of prior service cost and actuarial loss amortization, which was recorded by Rockwell Collins, as a result of fair value purchase accounting, net of the impact of the revised pension and post-retirement benefit (expense) as determined under UTC’s plan assumptions.


8	Reflects adjustments to Rockwell Collins revenue recognition as if they adopted the New Revenue Standard as of January 1, 2018 and primarily relates to capitalization of contract costs and changes in timing of sales recognition for contracts requiring an over time method of revenue recognition, partially offset by deferral of revenue recognized on OEM product engineering and development.


9	Reflects the elimination of entities required to be sold for regulatory approvals.

Acquisitions, Dispositions, Goodwill and Other Intangible Assets Dispositions (Tables) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Dec. 31, 2018
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Dispositions of businesses	$ 133	$ 35
Assets held for sale			$ 175
Liabilities held for sale			40
Inventories [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Assets held for sale			51
Property, Plant and Equipment [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Assets held for sale			$ 37

Revenue Recognition Contract Asset & Liability (Tables)

3 Months Ended

Mar. 31, 2019

Contract Asset and Liability [Abstract]

Contract with Customer, Asset and Liability [Table Text Block]



(dollars in millions)	March 31, 2019			December 31, 2018
Contract assets, current	$	3,795		$	3,486
Contract assets, noncurrent (included within Other assets)	1,209			1,142
Total contract assets	5,004			4,628
Contract liabilities, current	(6,107		)	(5,720		)
Contract liabilities, noncurrent (included within Other long-term liabilities)	(5,166		)	(5,069		)
Total contract liabilities	(11,273		)	(10,789		)
Net contract liabilities	$	(6,269	)	$	(6,161	)

Earnings Per Share (Tables)

3 Months Ended

Mar. 31, 2019

Earnings Per Share [Abstract]

Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]



	Quarter Ended March 31,
(dollars in millions, except per share amounts; shares in millions)	2019		2018
Net income attributable to common shareowners	$	1,346	$	1,297
Basic weighted average number of shares outstanding	853.2		789.9
Stock awards and equity units (share equivalent)	7.5		10.5
Diluted weighted average number of shares outstanding	860.7		800.4
Earnings Per Share of Common Stock:
Basic	$	1.58	$	1.64
Diluted	$	1.56	$	1.62

Inventory (Tables)

3 Months Ended

Mar. 31, 2019

Inventory Disclosure [Abstract]

Schedule of Inventory, Current [Table Text Block]



(dollars in millions)	March 31, 2019		December 31, 2018
Raw materials	$	2,944	$	3,052
Work-in-process	2,819		2,673
Finished goods	4,711		4,358
	$	10,474	$	10,083

Borrowings and Lines of Credit (Tables)

3 Months Ended

Mar. 31, 2019

Debt Disclosure [Abstract]

Schedule of Short-Term Debt [Table Text Block]



(dollars in millions)	March 31, 2019		December 31, 2018
Commercial paper	$	849	$	1,257
Other borrowings	262		212
Total short-term borrowings	$	1,111	$	1,469

Schedule of Long-term Debt [Table Text Block]

Long-term debt consisted of the following:



(dollars in millions)	March 31, 2019		December 31, 2018
LIBOR plus 0.350% floating rate notes due 2019 ³	$	350	$	350
1.500% notes due 2019 ¹	650		650
1.950% notes due 2019 ⁴	300		300
EURIBOR plus 0.15% floating rate notes due 2019 (€750 million principal value) ²	849		858
5.250% notes due 2019 ⁴	300		300
8.875% notes due 2019	271		271
4.875% notes due 2020 ¹	171		171
4.500% notes due 2020 ¹	1,250		1,250
1.900% notes due 2020 ¹	1,000		1,000
EURIBOR plus 0.20% floating rate notes due 2020 (€750 million principal value) ²	849		858
8.750% notes due 2021	250		250
3.100% notes due 2021 ⁴	250		250
3.350% notes due 2021¹	1,000		1,000
LIBOR plus 0.650% floating rate notes due 2021 ^1,3	750		750
1.950% notes due 2021 ¹	750		750
1.125% notes due 2021 (€950 million principal value) ¹	1,075		1,088
2.300% notes due 2022 ¹	500		500
2.800% notes due 2022 ⁴	1,100		1,100
3.100% notes due 2022 ¹	2,300		2,300
1.250% notes due 2023 (€750 million principal value) ¹	849		858
3.650% notes due 2023 ¹	2,250		2,250
3.700% notes due 2023 ⁴	400		400
2.800% notes due 2024 ¹	800		800
3.200% notes due 2024 ⁴	950		950



1.150% notes due 2024 (€750 million principal value) ¹	849			858
3.950% notes due 2025 ¹	1,500			1,500
1.875% notes due 2026 (€500 million principal value) ¹	566			573
2.650% notes due 2026 ¹	1,150			1,150
3.125% notes due 2027 ¹	1,100			1,100
3.500% notes due 2027 ⁴	1,300			1,300
7.100% notes due 2027	141			141
6.700% notes due 2028	400			400
4.125% notes due 2028 ¹	3,000			3,000
7.500% notes due 2029 ¹	550			550
2.150% notes due 2030 (€500 million principal value) ¹	566			573
5.400% notes due 2035 ¹	600			600
6.050% notes due 2036 ¹	600			600
6.800% notes due 2036 ¹	134			134
7.000% notes due 2038	159			159
6.125% notes due 2038 ¹	1,000			1,000
4.450% notes due 2038 ¹	750			750
5.700% notes due 2040 ¹	1,000			1,000
4.500% notes due 2042 ¹	3,500			3,500
4.800% notes due 2043 ⁴	400			400
4.150% notes due 2045 ¹	850			850
3.750% notes due 2046 ¹	1,100			1,100
4.050% notes due 2047 ¹	600			600
4.350% notes due 2047 ⁴	1,000			1,000
4.625% notes due 2048 ¹	1,750			1,750
Project financing obligations ⁵	338			287
Other (including finance leases)	302			287
Total principal long-term debt	44,419			44,416
Other (fair market value adjustments, discounts and debt issuance costs)	(344		)	(348		)
Total long-term debt	44,075			44,068
Less: current portion	3,071			2,876
Long-term debt, net of current portion	$	41,004		$	41,192


1	We may redeem these notes at our option pursuant to their terms.


2	The three-month EURIBOR rate as of March 31, 2019 was approximately -0.311%. The notes may be redeemed at our option in whole, but not in part, at any time in the event of certain developments affecting U.S. taxation.


3	The three-month LIBOR rate as of March 31, 2019 was approximately 2.599%.

Schedule of Weighted average interest rates [Table Text Block]

The average interest expense rate on our total borrowings for the quarters ended March 31, 2019 and 2018 were as follows:



	Quarter Ended March 31,
	2019		2018
Average interest expense rate	3.6	%	3.4	%

- Definition

Tabular disclosure of long-debt instruments or arrangements, including identification, terms, features, collateral requirements and other information necessary to a fair presentation. These are debt arrangements that originally required repayment more than twelve months after issuance or greater than the normal operating cycle of the entity, if longer.

+ References

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-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
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-Name Accounting Standards Codification
-Topic 835
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Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
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-Name Accounting Standards Codification
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-Topic 235
-SubTopic 10
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-Paragraph 1
-Subparagraph (SX 210.4-08.(e),(f))
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Reference 8: http://fasb.org/us-gaap/role/ref/legacyRef
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-URI http://asc.fasb.org/extlink&oid=75038535&loc=d3e64711-112823

Reference 9: http://fasb.org/us-gaap/role/ref/legacyRef
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-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 55
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-URI http://asc.fasb.org/extlink&oid=114775985&loc=d3e28878-108400

Reference 10: http://fasb.org/us-gaap/role/ref/legacyRef
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-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21475-112644

+ Details

Employee Benefit Plans (Tables)

3 Months Ended

Mar. 31, 2019

Retirement Benefits [Abstract]

Schedule of Defined Benefit Plans Disclosures [Table Text Block]

Contributions to our plans were as follows:



	Quarter Ended March 31,
(dollars in millions)	2019		2018
Defined benefit plans	$	32	$	37
Defined contribution plans	153		94



	Pension Benefits Quarter Ended March 31,						Other Postretirement Benefits Quarter Ended March 31,
(dollars in millions)	2019			2018			2019			2018
Service cost	$	87		$	93		$	1		$	1
Interest cost	340			279			8			6
Expected return on plan assets	(607		)	(563		)	(1		)	—
Amortization of prior service cost (credit)	5			(10		)	(11		)	(1		)
Recognized actuarial net loss (gain)	53			101			(3		)	(2		)
Net settlement and curtailment loss (gain)	8			(1		)	—			—
Total net periodic benefit (income) cost	$	(114	)	$	(101	)	$	(6	)	$	4

Restructuring and Other Costs (Tables)

3 Months Ended

Mar. 31, 2019

YTD Current and Prior Year Actions [Member]

Restructuring Cost and Reserve [Line Items]

Schedule of Restructuring and Related Costs [Table Text Block]

We recorded charges in the segments as follows:



(dollars in millions)
Otis	$	25
Carrier	33
Pratt & Whitney	14
Collins Aerospace Systems	39
Eliminations and other	1
Total	$	112

Restructuring charges incurred during the quarter ended March 31, 2019 primarily relate to actions initiated during 2019 and 2018, and were recorded as follows:



(dollars in millions)
Cost of sales	$	56
Selling, general and administrative	56
Total	$	112

Current Year Actions [Member]

Restructuring Cost and Reserve [Line Items]

Schedule of Restructuring and Related Costs [Table Text Block]

The following table summarizes expected, incurred and remaining costs for the 2019 restructuring actions by segment:



(dollars in millions)	Expected Costs		Costs Incurred Quarter Ended March 31, 2019			Remaining Costs at March 31, 2019
Otis	$	27	$	(19	)	$	8
Carrier	40		(25		)	15
Pratt & Whitney	14		(14		)	—
Collins Aerospace Systems	22		(14		)	8
Eliminations and other	1		(1		)	—
Total	$	104	$	(73	)	$	31

Schedule of Restructuring Reserve by Type of Cost [Table Text Block]

The following table summarizes the accrual balance and utilization for the 2019 restructuring actions for the quarter ended March 31, 2019:



(dollars in millions)	Severance			Facility Exit, Lease Termination and Other Costs		Total
Net pre-tax restructuring costs	$	68		$	5	$	73
Utilization, foreign exchange and other costs	(15		)	10		(5		)
Balance at March 31, 2019	$	53		$	15	$	68

Prior Year Actions [Member]

Restructuring Cost and Reserve [Line Items]

Schedule of Restructuring and Related Costs [Table Text Block]

The following table summarizes expected, incurred and remaining costs for the 2018 restructuring actions by segment:



(dollars in millions)	Expected Costs		Costs Incurred in 2018			Costs Incurred Quarter Ended March 31, 2019			Remaining Costs at March 31, 2019
Otis	$	58	$	(48	)	$	(5	)	$	5
Carrier	107		(64		)	(7		)	36
Pratt & Whitney	3		(3		)	—			—
Collins Aerospace Systems	113		(87		)	(11		)	15
Eliminations and other	5		(5		)	—			—
Total	$	286	$	(207	)	$	(23	)	$	56

Schedule of Restructuring Reserve by Type of Cost [Table Text Block]

The following table summarizes the accrual balances and utilization for the 2018 restructuring actions for the quarter ended March 31, 2019:



(dollars in millions)	Severance			Facility Exit, Lease Termination and Other Costs			Total
Restructuring accruals at December 31, 2018	$	115		$	23		$	138
Net pre-tax restructuring costs	21			2			23
Utilization, foreign exchange and other costs	(74		)	(16		)	(90		)
Balance at March 31, 2019	$	62		$	9		$	71

Financial Instruments (Tables)

3 Months Ended

Mar. 31, 2019

Derivative Instruments, Gain (Loss) [Line Items]

Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block]

The following table summarizes the fair value and presentation in the Condensed Consolidated Balance Sheets for derivative instruments as of March 31, 2019 and December 31, 2018:



(dollars in millions)	Balance Sheet Location	March 31, 2019			December 31, 2018
Derivatives designated as hedging instruments:
Foreign exchange contracts	Asset Derivatives:
	Other assets, current	$	6		$	10
	Other assets	10			12
	Total asset derivatives	$	16		$	22
	Liability Derivatives:
	Accrued liabilities	(54		)	(83		)
	Other long-term liabilities	(63		)	(111		)
	Total liability derivatives	$	(117	)	$	(194	)
Derivatives not designated as hedging instruments:
Foreign exchange contracts	Asset Derivatives:
	Other assets, current	42			44
	Other assets	12			19
	Total asset derivatives	$	54		$	63
	Liability Derivatives:
	Accrued liabilities	(47		)	(89		)
	Other long-term liabilities	(37		)	(3		)
	Total liability derivatives	$	(84	)	$	(92	)

Reclassification out of Accumulated Other Comprehensive Income [Member]

Derivative Instruments, Gain (Loss) [Line Items]

Derivative Instruments, Gain (Loss) [Table Text Block]



	Quarter Ended March 31,
(dollars in millions)	2019		2018
Gain recorded in Accumulated other comprehensive loss	$	7	$	45
Loss (gain) reclassified from Accumulated other comprehensive loss into Product sales	4		(27		)

Other Income [Member]

Derivative Instruments, Gain (Loss) [Line Items]

Derivative Instruments, Gain (Loss) [Table Text Block]

The effect of derivatives not designated as hedging instruments within Other income, net, on the Condensed Consolidated Statement of Operations was as follows:



	Quarter Ended March 31,
(dollars in millions)	2019		2018
Foreign exchange contracts	$	18	$	51

Fair Value Measurements (Tables)

3 Months Ended

Mar. 31, 2019

Fair Value Disclosures [Abstract]

Fair Value Measurements, Recurring and Nonrecurring [Table Text Block]



	March 31, 2019
(dollars in millions)	Total			Level 1		Level 2			Level 3
Recurring fair value measurements:
Available-for-sale securities	$	55		$	55	$	—		$	—
Derivative assets	70			—		70			—
Derivative liabilities	(201		)	—		(201		)	—



	December 31, 2018
(dollars in millions)	Total			Level 1		Level 2			Level 3
Recurring fair value measurements:
Available-for-sale securities	$	51		$	51	$	—		$	—
Derivative assets	85			—		85			—
Derivative liabilities	(286		)	—		(286		)	—

Fair Value, by Balance Sheet Grouping [Table Text Block]



	March 31, 2019						December 31, 2018
(dollars in millions)	Carrying Amount			Fair Value			Carrying Amount			Fair Value
Long-term receivables	$	580		$	557		$	334		$	314
Customer financing notes receivable	288			286			272			265
Short-term borrowings	(1,111		)	(1,111		)	(1,469		)	(1,469		)
Long-term debt (excluding finance leases)	(43,988		)	(45,643		)	(43,996		)	(44,003		)
Long-term liabilities	(498		)	(465		)	(508		)	(467		)



	March 31, 2019
(dollars in millions)	Total			Level 1		Level 2			Level 3
Long-term receivables	$	557		$	—	$	557		$	—
Customer financing notes receivable	286			—		286			—
Short-term borrowings	(1,111		)	—		(849		)	(262		)
Long-term debt (excluding finance leases)	(45,643		)	—		(45,213		)	(430		)
Long-term liabilities	(465		)	—		(465		)	—



	December 31, 2018
(dollars in millions)	Total			Level 1		Level 2			Level 3
Long-term receivables	$	314		$	—	$	314		$	—
Customer financing notes receivable	265			—		265			—
Short-term borrowings	(1,469		)	—		(1,258		)	(211		)
Long-term debt (excluding finance leases)	(44,003		)	—		(43,620		)	(383		)
Long-term liabilities	(467		)	—		(467		)	—

- Definition

Tabular disclosure of financial instruments measured at fair value, including those classified in shareholders' equity measured on a recurring or nonrecurring basis. Disclosures include, but are not limited to, fair value measurements recorded and the reasons for the measurements, level within the fair value hierarchy in which the fair value measurements are categorized and transfers between levels 1 and 2. Nonrecurring fair value measurements are those that are required or permitted in the statement of financial position in particular circumstances.

+ References + Details

Long-Term Financing Receivables (Tables)

3 Months Ended

Mar. 31, 2019

Receivables [Abstract]

Financing Receivable Credit Quality Indicators [Table Text Block]

The following table summarizes the balance by class of aerospace business related long-term receivables as of March 31, 2019 and December 31, 2018.



(dollars in millions)	March 31, 2019		December 31, 2018
Long-term trade accounts receivable	$	297	$	269
Notes and leases receivable	257		258
Total long-term receivables	$	554	$	527

Accumulated Other Comprehensive Loss (Tables)

3 Months Ended

Mar. 31, 2019

Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]

Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]

A summary of the changes in each component of Accumulated other comprehensive loss, net of tax for the quarters ended March 31, 2019 and 2018 is provided below:



	Quarter Ended March 31, 2019
(dollars in millions)	Foreign Currency Translation			Defined Benefit Pension and Post- retirement Plans			Unrealized Gains (Losses) on Available-for-Sale Securities		Unrealized Hedging (Losses) Gains			Accumulated Other Comprehensive (Loss) Income
Balance at December 31, 2018	$	(3,442	)	$	(5,718	)	$	—	$	(173	)	$	(9,333	)
Other comprehensive income (loss) before reclassifications, net	530			(1		)	—		7			536
Amounts reclassified, pre-tax	1			44			—		4			49
Tax benefit reclassified	(13		)	(10		)	—		(3		)	(26		)
ASU 2018-02 adoption impact	(8		)	(737		)	—		—			(745		)
Balance at March 31, 2019	$	(2,932	)	$	(6,422	)	$	—	$	(165	)	$	(9,519	)



	Quarter Ended March 31, 2018
(dollars in millions)	Foreign Currency Translation			Defined Benefit Pension and Post- retirement Plans			Unrealized Gains (Losses) on Available-for-Sale Securities			Unrealized Hedging (Losses) Gains			Accumulated Other Comprehensive (Loss) Income
Balance at December 31, 2017	$	(2,950	)	$	(4,652	)	$	5		$	72		$	(7,525	)
Other comprehensive income (loss) before reclassifications, net	376			8			—			45			429
Amounts reclassified, pre-tax	—			88			—			(27		)	61
Tax expense (benefit) reclassified	130			(23		)	—			(4		)	103
ASU 2016-01 adoption impact	—			—			(5		)	—			(5		)
Balance at March 31, 2018	$	(2,444	)	$	(4,579	)	$	—		$	86		$	(6,937	)

Variable Interest Entities (Tables)

3 Months Ended

Mar. 31, 2019

Variable Interest Entity, Primary Beneficiary

Variable Interest Entity [Line Items]

Schedule of Variable Interest Entities [Table Text Block]

The carrying amounts and classification of assets and liabilities for variable interest entities in our Condensed Consolidated Balance Sheet are as follows:



(dollars in millions)	March 31, 2019		December 31, 2018
Current assets	$	4,649	$	4,732
Noncurrent assets	1,728		1,600
Total assets	$	6,377	$	6,332

Current liabilities	$	4,676	$	4,946
Noncurrent liabilities	1,943		1,898
Total liabilities	$	6,619	$	6,844

- Definition

Tabular disclosure of the significant judgments and assumptions made in determining whether a variable interest (as defined) held by the entity requires the variable interest entity (VIE) (as defined) to be consolidated and (or) disclose information about its involvement with the VIE, individually or in aggregate (as applicable); the nature of restrictions, if any, on the consolidated VIE's assets and on the settlement of its liabilities reported by an entity in its statement of financial position, including the carrying amounts of such assets and liabilities; the nature of, and changes in, the risks associated with involvement in the VIE; how involvement with the VIE affects the entity's financial position, financial performance, and cash flows; the lack of recourse if creditors (or beneficial interest holders) of the consolidated VIE have no recourse to the general credit of the primary beneficiary (if applicable); the terms of arrangements, giving consideration to both explicit arrangements and implicit variable interests, if any, that could require the entity to provide financial support to the VIE, including events or circumstances that could expose the entity to a loss; the methodology used by the entity for determining whether or not it is the primary beneficiary of the variable interest entity; the significant factors considered and judgments made in determining that the power to direct the activities of a VIE that most significantly impact the VIE's economic performance are shared (as defined); the carrying amounts and classification of assets and liabilities of the VIE included in the statement of financial position; the entity's maximum exposure to loss, if any, as a result of its involvement with the VIE, including how the maximum exposure is determined and significant sources of the entity's exposure to the VIE; a comparison of the carrying amounts of the assets and liabilities and the entity's maximum exposure to loss; information about any liquidity arrangements, guarantees, and (or) other commitments by third parties that may affect the fair value or risk of the entity's variable interest in the VIE; whether or not the entity has provided financial support or other support (explicitly or implicitly) to the VIE that it was not previously contractually required to provide or whether the entity intends to provide that support, including the type and amount of the support and the primary reasons for providing the support; and supplemental information the entity determines necessary to provide.

+ References + Details

Guarantees (Tables)

3 Months Ended

Mar. 31, 2019

Service and Product Warranties and Product Performance Guarantees [Abstract]

Product Warranty Disclosure [Table Text Block]

The changes in the carrying amount of service and product warranties and product performance guarantees for the quarters ended March 31, 2019 and 2018 are as follows:



(dollars in millions)	2019			2018
Balance as of January 1	$	1,449		$	1,146
Warranties and performance guarantees issued	137			115
Settlements made	(110		)	(106		)
Other	9			6
Balance as of March 31	$	1,485		$	1,161

Leases (Tables)

3 Months Ended

Mar. 31, 2019

Leases [Abstract]

Supplemental operating lease cash flow information [Table Text Block]



(dollars in millions)	Quarter Ended March 31, 2019
Operating cash flows for the measurement of operating lease liabilities	$	(145	)
Operating lease right-of-use assets obtained in exchange for operating lease obligations	27

Balance Sheet Location, Operating Leases [Table Text Block]



(dollars in millions, except lease term and discount rate)	March 31, 2019
Operating lease right-of-use assets	$	2,533

Accrued liabilities	$	(582	)
Operating lease liabilities	(2,020		)
Total operating lease liabilities	$	(2,602	)

Supplemental Balance Sheet Information, Operating Leases [Table Text Block]



	March 31, 2019
Weighted Average Remaining Lease Term (in years)	6.9
Weighted Average Discount Rate	3.6	%

Lessee, Operating Lease, Liability, Maturity [Table Text Block]



(dollars in millions)	Operating ¹
2019	$	533
2020	540
2021	446
2022	327
2023	242
Thereafter	776
Total undiscounted lease payments	2,864
Less imputed interest	(262		)
Total discounted lease payments	$	2,602

Segment Financial Data (Tables)

3 Months Ended

Mar. 31, 2019

Segment Reporting [Abstract]

Schedule of Segment Reporting Information, by Segment [Table Text Block]

Results for the quarters ended March 31, 2019 and 2018 are as follows:



	Net Sales						Operating Profits						Operating Profit Margins
(dollars in millions)	2019			2018			2019			2018			2019		2018
Otis	$	3,096		$	3,037		$	426		$	450		13.8	%	14.8	%
Carrier	4,323			4,376			529			592			12.2	%	13.5	%
Pratt & Whitney	4,817			4,329			433			413			9.0	%	9.5	%
Collins Aerospace Systems	6,513			3,817			856			588			13.1	%	15.4	%
Total segments	18,749			15,559			2,244			2,043			12.0	%	13.1	%
Eliminations and other	(384		)	(317		)	(101		)	(11		)
General corporate expenses	—			—			(98		)	(104		)
Consolidated	$	18,365		$	15,242		$	2,045		$	1,928		11.1	%	12.6	%

Schedule of Segment Reporting Information, by Geographic Markets [Table Text Block]

Geographic sales are attributed to the geographic regions based on their location of origin. Segment information for the quarters ended March 31, 2019 and 2018 is as follows:



	2019										2018
(dollars in millions)	Otis		Carrier		Pratt & Whitney		Collins Aerospace Systems		Total		Otis		Carrier		Pratt & Whitney		Collins Aerospace Systems		Total
United States	$	912	$	2,214	$	3,732	$	4,730	$	11,588	$	845	$	2,095	$	3,121	$	2,654	$	8,715
Europe	955		1,292		108		1,024		3,379		1,006		1,384		173		607		3,170
Asia Pacific	976		612		255		189		2,032		922		685		368		84		2,059
Other	253		205		722		570		1,750		264		212		667		472		1,615
Total segment	$	3,096	$	4,323	$	4,817	$	6,513	$	18,749	$	3,037	$	4,376	$	4,329	$	3,817	$	15,559

Segment Reporting Disclosure, Product Type [Text Block]

Segment sales disaggregated by product type for the quarters ended March 31, 2019 and 2018 are as follows:



	2019										2018
(dollars in millions)	Otis		Carrier		Pratt & Whitney		Collins Aerospace Systems		Total		Otis		Carrier		Pratt & Whitney		Collins Aerospace Systems		Total
Commercial and industrial, non aerospace	$	3,096	$	4,323	$	23	$	14	$	7,456	$	3,037	$	4,376	$	21	$	15	$	7,449
Commercial aerospace	—		—		3,375		4,828		8,203		—		—		3,199		2,911		6,110
Military aerospace	—		—		1,419		1,671		3,090		—		—		1,109		891		2,000
Total segment	$	3,096	$	4,323	$	4,817	$	6,513	$	18,749	$	3,037	$	4,376	$	4,329	$	3,817	$	15,559

Segment Reporting Disclosure, Sales Type [Text Block] [Text Block]

Segment sales disaggregated by sales type for the quarters ended March 31, 2019 and 2018 are as follows:



	2019										2018
(dollars in millions)	Otis		Carrier		Pratt & Whitney		Collins Aerospace Systems		Total		Otis		Carrier		Pratt & Whitney		Collins Aerospace Systems		Total
Product	$	1,279	$	3,566	$	2,973	$	5,406	$	13,224	$	1,219	$	3,597	$	2,537	$	3,188	$	10,541
Service	1,817		757		1,844		1,107		5,525		1,818		779		1,792		629		5,018
Total segment	$	3,096	$	4,323	$	4,817	$	6,513	$	18,749	$	3,037	$	4,376	$	4,329	$	3,817	$	15,559

Acquisitions, Dispositions, Goodwill and Other Intangible Assets (General Information) (Details) - USD ($) shares in Millions	3 Months Ended		12 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Dec. 31, 2018	Nov. 26, 2018
Business Acquisition [Line Items]
Acquisition Cost Of Acquired Entities and Interest in Affiliates	$ 19,000,000
Proceeds from Issuance of Debt			$ 11,000,000,000
Proceeds from Debt, Net of Issuance Costs			$ 10,900,000,000
Goodwill Resulting from Business Combinations	93,000,000
Contractual Obligation, Due in Next Fiscal Year	145,000,000
Contractual Obligation, Due in Second Year	133,000,000
Contractual Obligation, Due in Third Year	131,000,000
Contractual Obligation, Due in Fourth Year	125,000,000
Contractual Obligation, Due in Fifth Year	118,000,000
Business Combination, Acquisition Related Costs	$ 9,000,000	$ 30,000,000
Rockwell Collins [Member]
Business Acquisition [Line Items]
Business Acquisition, Effective Date of Acquisition			Nov. 26, 2018
Business Acquisition, Name of Acquired Entity			Rockwell Collins
Business Acquisition Cash Paid Per Share			$ 93.33
Business Acquisition UTC stock payable			0.37525
Payments to Acquire Businesses, Gross			15,500,000,000
Payments to Acquire Businesses, Net of Cash Acquired			$ 14,900,000,000
Stock Issued During Period, Shares, Acquisitions			62.2
Noncash or Part Noncash Acquisition, Debt Assumed			$ 7,800,000,000
Noncash or Part Noncash Acquisition, Value of Assets Acquired			30,600,000,000
Stock Issued During Period, Value, Acquisitions			7,960,000,000
Business Combination, Consideration Transferred			23,493,000,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Cash and Equivalents				$ 640,000,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Receivables				1,663,000,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Inventory				1,520,000,000
Business combination, recognized identifiable assets acquired and liabilities assumed, contract with customer asset, current				301,000,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Other				264,000,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Assets Noncurrent				38,000,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment				1,691,000,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Indefinite-Lived Intangible Assets				1,870,000,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Other Noncurrent Assets				210,000,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets				17,117,000,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Long-term Debt				2,254,000,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Accounts Payable				378,000,000
Business combination, recognized identifiable assets acquired and liabilities assumed, accrued liabilities current				1,689,000,000
Business combination, recognized identifiable assets acquired and liabilities assumed, contract with customer liabilities, current				301,000,000
Business Acquisition, Assumed Long-term Debt				5,530,000,000
Business combination, recognized identifiable assets acquired and liabilities assumed, liability, defined benefit plan, noncurrent				502,000,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Other				3,517,000,000
Business combination, recognized identifiable assets acquired and liabilities assumed, noncontrolling interest				6,000,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities				14,177,000,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net				2,940,000,000
Goodwill Resulting from Business Combinations			$ 20,553,000,000
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net				23,493,000,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill				10,790,000,000
Fair value adjustment, inventory				282,000,000
Fair value adjustment, fixed assets				269,000,000
Contractual Obligation				1,020,000,000
Rockwell Collins [Member] \| Customer Relationships [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles				8,320,000,000
Rockwell Collins [Member] \| Customer Relationships [Member] \| Maximum [Member]
Business Acquisition [Line Items]
Finite-Lived Intangible Asset, Useful Life	20 years
Rockwell Collins [Member] \| Customer Relationships [Member] \| Minimum [Member]
Business Acquisition [Line Items]
Finite-Lived Intangible Asset, Useful Life	10 years
Rockwell Collins [Member] \| Technology-Based Intangible Assets [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles				$ 600,000,000
Finite-Lived Intangible Asset, Useful Life	15 years

Acquisitions, Dispositions, Goodwill and Other Intangible Assets Pro Forma Financial Data (Details) - USD ($)	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Revenues	$ 18,365,000,000	$ 15,242,000,000
Operating profit	2,045,000,000	1,928,000,000
Rockwell Collins [Member]
Revenues	2,300,000,000
Operating profit	264,000,000
Business Acquisition, Pro Forma Revenue	18,360,000,000	17,320,000,000
Business Acquisition, Pro Forma Net Income	$ 1,484,000,000	$ 1,475,000,000
Business Acquisition, Pro Forma Earnings Per Share, Basic	$ 1.74	$ 1.73
Business Acquisition, Pro Forma Earnings Per Share, Diluted	$ 1.72	$ 1.71
Pro Forma Nonrecurring Adjustment, Amortization of inventory and fixed asset fair value adjustment	$ 141,000,000	$ (5,000,000)
Pro Forma Nonrecurring Adjustment, Amortization of acquired Rockwell Collins intangible assets, net	0	(53,000,000)
Pro Forma Nonrecurring Adjustment, Utilization of contractual customer obligation	0	2,000,000
Pro Forma Nonrecurring Adjustment, UTC/Rockwell fees for advisory, legal, accounting services	2,000,000	26,000,000
Pro Forma Nonrecurring Adjustment, Interest expense incurred on acquisition financing, net	0	(76,000,000)
Pro Forma Nonrecurring Adjustment, Elimination of capitalized pre-production engineering amortization	0	14,000,000
Pro Forma Nonrecurring Adjustment, Adjustment to net periodic pension cost	0	11,000,000
Pro Forma Nonrecurring Adjustment, Adjustment to reflect the adoption of ASC 606	0	29,000,000
Pro Forma Nonrecurring Adjustment, Elimination of entities held for sale	(5,000,000)	(7,000,000)
Pro Forma Nonrecurring Adjustments, Net	$ 138,000,000	$ (59,000,000)

Acquisition, Dispositions, Goodwill and Other Intangible Assets (Goodwill) (Details) $ in Millions	3 Months Ended
	Mar. 31, 2019 USD ($)
Goodwill [Line Items]
Goodwill - Beginning Balance	$ 48,112
Goodwill Resulting from Business Combinations	93
Goodwill - Foreign Currency Translation and Other	187
Goodwill - Ending Balance	48,392
Otis [Member]
Goodwill [Line Items]
Goodwill - Beginning Balance	1,688
Goodwill Resulting from Business Combinations	7
Goodwill - Foreign Currency Translation and Other	(11)
Goodwill - Ending Balance	1,684
Carrier [Member]
Goodwill [Line Items]
Goodwill - Beginning Balance	9,835
Goodwill Resulting from Business Combinations	1
Goodwill - Foreign Currency Translation and Other	69
Goodwill - Ending Balance	9,905
Pratt & Whitney [Member]
Goodwill [Line Items]
Goodwill - Beginning Balance	1,567
Goodwill Resulting from Business Combinations	0
Goodwill - Foreign Currency Translation and Other	(4)
Goodwill - Ending Balance	1,563
Collins Aerospace Systems [Member]
Goodwill [Line Items]
Goodwill - Beginning Balance	35,001
Goodwill Resulting from Business Combinations	85
Goodwill - Foreign Currency Translation and Other	132
Goodwill - Ending Balance	35,218
Total Segments [Member]
Goodwill [Line Items]
Goodwill - Beginning Balance	48,091
Goodwill Resulting from Business Combinations	93
Goodwill - Foreign Currency Translation and Other	186
Goodwill - Ending Balance	48,370
Eliminations and other [Member]
Goodwill [Line Items]
Goodwill - Beginning Balance	21
Goodwill Resulting from Business Combinations	0
Goodwill - Foreign Currency Translation and Other	1
Goodwill - Ending Balance	$ 22

Acquisitions, Dispositions, Goodwill and Other Intangible Assets (Intangible Assets) (Details) - USD ($) $ in Millions	Mar. 31, 2019	Dec. 31, 2018
Finite-Lived Intangible Assets [Line Items]
Gross Amount	$ 29,780	$ 29,559
Accumulated Amortization	7,433	7,053
Unamortized: Trademarks and Other	3,933	3,918
Total Intangible Assets Gross Excluding Goodwill	33,713	33,477
Service portfolios [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Amount	2,168	2,164
Accumulated Amortization	1,627	1,608
Patents and trademarks [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Amount	362	361
Accumulated Amortization	242	236
Collaboration intangible assets [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Amount	4,599	4,509
Accumulated Amortization	723	649
Customer relationships and other [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Amount	22,651	22,525
Accumulated Amortization	$ 4,841	$ 4,560

Acquisitions, Dispositions, Goodwill and Other Intangible Assets (Amortization Expense) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net [Abstract]
Amortization of Intangible Assets	$ 374	$ 223
Amortization Expense, Remaining 2019	1,092
Amortization Expense, 2020	1,427
Amortization Expense, 2021	1,438
Amortization Expense, 2022	1,434
Amortization Expense, 2023	1,435
Amortization Expense, 2024	$ 1,422

Revenue Recognition Revenue Recognition (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019	Dec. 31, 2018
Revenue from Contract with Customer [Abstract]
Contract with Customer, Asset, Net, Current	$ 3,795	$ 3,486
Contract with Customer, Asset, Net, Noncurrent	1,209	1,142
Contract with Customer, Asset, Net	5,004	4,628
Contract with Customer, Liability, Current	6,107	5,720
Contract with Customer, Liability, Noncurrent	5,166	5,069
Contract with Customer, Liability	11,273	10,789
Contract with Customer, Net	6,269	6,161
Contract with Customer, Liability, Revenue Recognized	2,000
Capitalized Contract Cost, Net	1,072	914
Revenue, Remaining Performance Obligation, Amount	$ 117,500	$ 115,500
Revenue, Remaining Performance Obligations, to be recognized within 24 months	46.00%	46.00%
Contract with Customer, Asset, Change	$ 376
Contract with Customer, Liability, Change	$ 484

Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Net income attributable to common shareowners:
Net income attributable to common shareowners	$ 1,346	$ 1,297
Basic weighted average number of shares outstanding	853.2	789.9
Stock awards and equity units	7.5	10.5
Diluted weighted average number of shares outstanding	860.7	800.4
Earnings Per Share of Common Stock - Basic:
Net income from continuing operations	$ 1.58	$ 1.64
Net income attributable to common shareowners	1.58	1.64
Earnings Per Share of Common Stock - Diluted:
Net income from continuing operations	1.56	1.62
Net income attributable to common shareowners	$ 1.56	$ 1.62
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	12.2	4.3

Inventory (Details) - USD ($) $ in Millions	Mar. 31, 2019	Dec. 31, 2018
Inventory Disclosure [Abstract]
Raw materials	$ 2,944	$ 3,052
Work-in-process	2,819	2,673
Finished goods	4,711	4,358
Inventory, net	10,474	10,083
Inventory Valuation Reserves	$ 1,325	$ 1,270

Borrowings and Lines of Credit (Short-Term Borrowings) (Details) - USD ($) $ in Millions	Mar. 31, 2019	Dec. 31, 2018
Short-term Debt [Line Items]
Commercial paper	$ 849	$ 1,257
Other borrowings	262	212
Total short-term borrowings	$ 1,111	$ 1,469

Borrowing and Lines of Credit (Narrative) (Details) € in Millions	3 Months Ended
	Mar. 31, 2019 USD ($)	Apr. 08, 2019 USD ($)	Mar. 31, 2019 EUR (€)
Line of Credit Facility [Line Items]
Aggregate Line of Credit Agreements, Maximum Borrowing Capacity	$ 10,350,000,000.00
Maximum Commercial Paper Borrowing Authority	4,350,000,000.00	$ 6,350,000,000.00
Commercial paper, euro-denominated	849,000,000		€ 750
2.20B Revolving Credit Agreement [Member]
Line of Credit Facility [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity	$ 2,200,000,000.00
Line of Credit Facility, Expiration Date	Aug. 05, 2021
Borrowings under credit agreements	$ 0
2.15B Multicurrency Revolving Credit Agreement [Member]
Line of Credit Facility [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity	$ 2,150,000,000.00
Line of Credit Facility, Expiration Date	Aug. 05, 2021
Borrowings under credit agreements	$ 0
2.0B Revolving Credit Agreement [Member]
Line of Credit Facility [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity	$ 2,000,000,000.0
Line of Credit Facility, Expiration Date	Mar. 15, 2021
Line of Credit Facility, Expiration Terms	180 days after the date on which each of the separations of Otis and Carrier have been consummated
Line of Credit Facility, Initiation Date	Mar. 15, 2019
Borrowings under credit agreements	$ 0
4.0B Term Credit Agreement [Member]
Line of Credit Facility [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity	$ 4,000,000,000.0
Line of Credit Facility, Expiration Date	Mar. 15, 2021
Line of Credit Facility, Expiration Terms	180 days after the date on which each of the separations of Otis and Carrier have been consummated
Line of Credit Facility, Initiation Date	Mar. 15, 2019
Borrowings under credit agreements	$ 0
1.5B Revolving Credit Agreement [Member]
Line of Credit Facility [Line Items]
Termination Date	Mar. 15, 2019
Termination Loans	$ 1,500,000,000
Borrowings under credit agreements	$ 0

Borrowings and Lines of Credit (Long-Term Debt) (Details) - USD ($)
$ in Millions

3 Months Ended

Mar. 31, 2019

Dec. 31, 2018

Borrowings and Lines of Credit Borrowings and lines of Credit (Current Year Actions) (Details) € in Millions, $ in Millions	3 Months Ended		12 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Dec. 31, 2018 USD ($)	Dec. 31, 2018 EUR (€)
Debt Instrument [Line Items]
Proceeds from Issuance of Debt			$ 11,000
Average Years of Maturity of Long Term Debt	11 years
Average interest expense rate	3.60%	3.40%
Notes 3.350% Due 2021 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	3.35%
Debt Instrument, Maturity Date, Description	2021
Debt Instrument, Issuance Date			Aug. 16, 2018	Aug. 16, 2018
Proceeds from Issuance of Debt			$ 1,000
Notes 3.650% Due 2023 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	3.65%
Debt Instrument, Maturity Date, Description	2023
Debt Instrument, Issuance Date			Aug. 16, 2018	Aug. 16, 2018
Proceeds from Issuance of Debt			$ 2,250
Notes 3.950% Due 2025 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	3.95%
Debt Instrument, Maturity Date, Description	2025
Debt Instrument, Issuance Date			Aug. 16, 2018	Aug. 16, 2018
Proceeds from Issuance of Debt			$ 1,500
Notes 4.125% Due 2028 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	4.125%
Debt Instrument, Maturity Date, Description	2028
Debt Instrument, Issuance Date			Aug. 16, 2018	Aug. 16, 2018
Proceeds from Issuance of Debt			$ 3,000
Notes 4.450% Due 2038 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	4.45%
Debt Instrument, Maturity Date, Description	2038
Debt Instrument, Issuance Date			Aug. 16, 2018	Aug. 16, 2018
Proceeds from Issuance of Debt			$ 750
Notes 4.625% Due 2048 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	4.625%
Debt Instrument, Maturity Date, Description	2048
Debt Instrument, Issuance Date			Aug. 16, 2018	Aug. 16, 2018
Proceeds from Issuance of Debt			$ 1,750
LIBOR plus 0.650% floating rate notes due 2021 [Member]
Debt Instrument [Line Items]
Debt Instrument, Maturity Date, Description	2021
Debt Instrument, Issuance Date			Aug. 16, 2018	Aug. 16, 2018
Proceeds from Issuance of Debt			$ 750
Notes 1.150% Due 2024 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	1.15%
Debt Instrument, Maturity Date, Description	2024
Debt Instrument, Issuance Date			May 18, 2018	May 18, 2018
Proceeds from Issuance of Debt \| €				€ 750
Notes 2.150% Due 2030 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	2.15%
Debt Instrument, Maturity Date, Description	2030
Debt Instrument, Issuance Date			May 18, 2018	May 18, 2018
Proceeds from Issuance of Debt \| €				€ 500
EURIBOR plus 0.20% floating rate notes due 2020 [Member]
Debt Instrument [Line Items]
Debt Instrument, Maturity Date, Description	2020
Debt Instrument, Issuance Date			May 18, 2018	May 18, 2018
Proceeds from Issuance of Debt \| €				€ 750
Variable-rate term loan due 2020 (1 month LIBOR plus 1.25%) [Member]
Debt Instrument [Line Items]
Repayment of Debt, Date			Dec. 14, 2018	Dec. 14, 2018
Repayments of Debt			$ 482
Junior subordinated notes 1.778% due 2018 [Member]
Debt Instrument [Line Items]
Repayment of Debt, Date			May 04, 2018	May 04, 2018
Repayments of Debt			$ 1,100
EURIBOR plus 0.800% floating rate notes due 2018 [Member]
Debt Instrument [Line Items]
Repayment of Debt, Date			Feb. 22, 2018	Feb. 22, 2018
Repayments of Debt \| €				€ 750
Notes 6.800% Due 2018 [Member]
Debt Instrument [Line Items]
Repayment of Debt, Date			Feb. 01, 2018	Feb. 01, 2018
Repayments of Debt			$ 99

Income Taxes (Unrecognized Tax Benefit Changes) (Details) $ in Millions	Mar. 31, 2019 USD ($)
Minimum [Member]
Significant Change In Unrecognized Tax Benefits Is Reasonably Possible [Line Items]
Decrease in Unrecognized Tax Benefits is Reasonably Possible, Estimated Range of Change	$ 390
Italian Tax Authority Amnesty Program Potential Noncash Gain	90
Maximum [Member]
Significant Change In Unrecognized Tax Benefits Is Reasonably Possible [Line Items]
Decrease in Unrecognized Tax Benefits is Reasonably Possible, Estimated Range of Change	750
Italian Tax Authority Amnesty Program Potential Noncash Gain	$ 110

Income Taxes Income Tax Examination (Details) $ in Millions	3 Months Ended
Income Taxes Income Tax Examination (Details) $ in Millions	Mar. 31, 2019 USD ($)
Closure of IRS audit of Rockwell Subsidiary Tax Year 2014 [Member]
Income Tax Examination [Line Items]
Tax Settlement Gain (Loss) Noncash	$ 40
Reversal of Indemnity Asset [Member]
Income Tax Examination [Line Items]
Tax Settlement Gain (Loss) Noncash	$ (23)

Employee Benefit Plans (Details) - USD ($)	3 Months Ended
Employee Benefit Plans (Details) - USD ($)	Mar. 31, 2019	Mar. 31, 2018
Defined Benefit Plan Disclosure [Line Items]
Pension Contributions	$ 32,000,000	$ 37,000,000
Contributions - Defined benefit plans	32,000,000	37,000,000
Contributions - Defined contribution plans	153,000,000	94,000,000
Domestic Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Pension Contributions	0	0
Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	87,000,000	93,000,000
Interest cost	340,000,000	279,000,000
Expected return on plan assets	607,000,000	563,000,000
Amortization of prior service cost (credit)	5,000,000	(10,000,000)
Recognized actuarial net loss (gain)	(53,000,000)	(101,000,000)
Net settlement and curtailment (loss) gain	(8,000,000)	1,000,000
Total net periodic benefit (income) cost	(114,000,000)	(101,000,000)
Other Postretirement Benefits Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	1,000,000	1,000,000
Interest cost	8,000,000	6,000,000
Expected return on plan assets	1,000,000	0
Amortization of prior service cost (credit)	(11,000,000)	(1,000,000)
Recognized actuarial net loss (gain)	3,000,000	2,000,000
Net settlement and curtailment (loss) gain	0	0
Total net periodic benefit (income) cost	(6,000,000)	$ 4,000,000
Rockwell Collins Defined Contribution Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Contributions - Defined contribution plans	$ 35,000,000

Financial Instruments (Details) - USD ($) $ in Millions	3 Months Ended
Financial Instruments (Details) - USD ($) $ in Millions	Mar. 31, 2019	Mar. 31, 2018	Dec. 31, 2018
Derivatives, Fair Value [Line Items]
Derivatives designated as hedging instruments, Asset Derivatives	$ 16		$ 22
Derivatives not designated as hedging instruments, Asset Derivatives	54		63
Derivatives designated as hedging instruments, Liability Derivatives	117		194
Derivatives not designated as hedging instruments, Liability Derivatives	84		92
Four Quarter Rolling Average of Notional Amount of Foreign Exchange Contracts Hedging Foreign Currency Transactions	$ 18,100		20,100
Description of Net Investment Hedge Activity	We have approximately €4.95 billion of euro-denominated long-term debt and €750 million of euro-denominated commercial paper borrowings outstanding, which qualify as a net investment hedge against our investments in European businesses. As of March 31, 2019, the net investment hedge is deemed to be effective.
Gain (loss) recorded in Accumulated other comprehensive loss	$ 7	$ 45
(Gain) loss reclassified from Accumulated other comprehensive loss into Product Sales (effective portion)	$ 4	(27)
Maximum Length of Time, Foreign Currency Cash Flow Hedge	4 years 22 days
Gain recognized in Other income, net	$ 18	$ 51
Foreign Currency Cash Flow Hedge Gain (Loss) to be Reclassified During Next 12 Months	49
Other Current Assets [Member]
Derivatives, Fair Value [Line Items]
Derivatives designated as hedging instruments, Asset Derivatives	6		10
Derivatives not designated as hedging instruments, Asset Derivatives	42		44
Other Noncurrent Assets [Member]
Derivatives, Fair Value [Line Items]
Derivatives designated as hedging instruments, Asset Derivatives	10		12
Derivatives not designated as hedging instruments, Asset Derivatives	12		19
Accrued Liabilities [Member]
Derivatives, Fair Value [Line Items]
Derivatives designated as hedging instruments, Liability Derivatives	54		83
Derivatives not designated as hedging instruments, Liability Derivatives	47		89
Other Long-term Liabilities [Member]
Derivatives, Fair Value [Line Items]
Derivatives designated as hedging instruments, Liability Derivatives	63		111
Derivatives not designated as hedging instruments, Liability Derivatives	$ 37		$ 3

Fair Value Measurements (Fair Value Hierarchy Classification) (Details) - USD ($) $ in Millions	Mar. 31, 2019	Dec. 31, 2018
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term borrowings	$ 1,111	$ 1,469
Portion at Other than Fair Value Measurement [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-term receivables	580	334
Customer financing notes receivable	288	272
Short-term borrowings	1,111	1,469
Long-term debt (excluding finance leases)	43,988	43,996
Long-term liabilities	498	508
Estimate of Fair Value, Fair Value Disclosure [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-term receivables	557	314
Customer financing notes receivable	286	265
Short-term borrowings	1,111	1,469
Long-term debt (excluding finance leases)	45,643	44,003
Long-term liabilities	465	467
Fair Value Level 1 [Member] \| Estimate of Fair Value, Fair Value Disclosure [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-term receivables	0	0
Customer financing notes receivable	0	0
Short-term borrowings	0	0
Long-term debt (excluding finance leases)	0	0
Long-term liabilities	0
Fair Value Level 2 [Member] \| Estimate of Fair Value, Fair Value Disclosure [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-term receivables	557	314
Customer financing notes receivable	286	265
Short-term borrowings	849	1,258
Long-term debt (excluding finance leases)	45,213	43,620
Long-term liabilities	465	467
Fair Value Level 3 [Member] \| Estimate of Fair Value, Fair Value Disclosure [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-term receivables	0	0
Customer financing notes receivable	0	0
Short-term borrowings	262	211
Long-term debt (excluding finance leases)	430	383
Long-term liabilities	0	0
Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	55	51
Derivative Assets	70	85
Derivative Liabilities	(201)	(286)
Fair Value, Measurements, Recurring [Member] \| Fair Value Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	55	51
Derivative Assets	0	0
Derivative Liabilities	0	0
Fair Value, Measurements, Recurring [Member] \| Fair Value Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	0	0
Derivative Assets	70	85
Derivative Liabilities	201	286
Fair Value, Measurements, Recurring [Member] \| Fair Value Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	0	0
Derivative Assets	0	0
Derivative Liabilities	$ 0	$ 0

Fair Value Measurements (Commercial Aerospace Financing Commitments) (Details) - USD ($) $ in Billions	Mar. 31, 2019	Dec. 31, 2018
Commercial Aerospace [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing and other contractual commitments	$ 16.2	$ 15.5

Long-Term Financing Receivables (Reserve and Additional Information) (Details) - USD ($) $ in Millions	Mar. 31, 2019	Dec. 31, 2018
Receivables [Abstract]
Long Term Receivables High Credit Risk	$ 150	$ 150
Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment	$ 17	$ 16

Long-Term Financing Receivables(Class and Credit Risk Information) (Details) - USD ($) $ in Millions	Mar. 31, 2019	Dec. 31, 2018
Financing Receivable, Recorded Investment [Line Items]
Total long-term receivables	$ 554	$ 527
Long-term trade accounts receivable [Member]
Financing Receivable, Recorded Investment [Line Items]
Total long-term receivables	297	269
Notes and leases receivable [Member]
Financing Receivable, Recorded Investment [Line Items]
Total long-term receivables	$ 257	$ 258

Guarantees (Details) - USD ($) $ in Millions	3 Months Ended
Guarantees (Details) - USD ($) $ in Millions	Mar. 31, 2019	Mar. 31, 2018
Product Warranty Liability [Line Items]
Balance as of January 1	$ 1,449	$ 1,146
Warranties and performance guarantees issued	137	115
Settlements made	110	106
Other	9	6
Balance as of March 31	$ 1,485	$ 1,161

Contingent Liabilities (Details) $ in Millions	3 Months Ended
Contingent Liabilities (Details) $ in Millions	Mar. 31, 2019 USD ($)
2019 U.S. Defense Contract Management Agency Claim Against Pratt & Whitney [Domain]
Loss Contingencies [Line Items]
Loss Contingency Lawsuit Filing Date	4/1/2019
Loss Contingency Allegations	In April 2019, a Divisional Administrative Contracting Officer (DACO) of the United States Defense Contract Management Agency (DCMA) asserted a claim against Pratt & Whitney to recover overpayments of approximately $1.73 billion plus interest (approximately $473 million through March 31, 2019). The claim is based on Pratt & Whitney's alleged noncompliance with cost accounting standards from January 1, 2007 to March 31, 2019, due to its method of allocating independent research and development costs to government contracts.
Loss Contingency Damages Sought	$1.73 billion
Loss Contingency Actions Taken By Defendant	Pratt & Whitney believes that the claim is without merit and will be filing an appeal to the Armed Services Board of Contract Appeals (ASBCA).
Estimate of interest on tax benefit	473
2013 U.S. Defense Contract Management Agency Claim Against Pratt & Whitney [Member]
Loss Contingencies [Line Items]
Loss Contingency Lawsuit Filing Date	December 24, 2013
Loss Contingency Allegations	As previously disclosed, in December 2013, a DCMA DACO asserted a claim against Pratt & Whitney to recover overpayments of approximately $177 million plus interest (approximately $87.5 million through March 31, 2019). The claim is based on Pratt & Whitney's alleged noncompliance with cost accounting standards from January 1, 2005 to December 31, 2012, due to its method of determining the cost of collaborator parts used in the calculation of material overhead costs for government contracts. On March 18, 2014, Pratt & Whitney filed an appeal to the ASBCA. We continue to believe that the claim is without merit and the matter is currently scheduled for trial later this year. On December 18, 2018, a DCMA DACO issued a second claim against Pratt & Whitney that similarly alleges that its method of determining the cost of collaborator parts does not comply with the cost accounting standards for calendar years 2013 through 2017.
Loss Contingency Damages Sought	$177 million
Loss Contingency Actions Taken By Defendant	This second claim demands payment of $269 million plus interest (approximately $43.4 million), which we also believe is without merit and which Pratt & Whitney appealed to the ASBCA on January 9, 2019.
Estimate of interest on tax benefit	87.5
German Tax Office Against Otis [Member]
Loss Contingencies [Line Items]
Loss Contingency Lawsuit Filing Date	August 3, 2012
Loss Contingency Allegations	As previously disclosed, UTC has been involved in administrative review proceedings with the German Tax Office, which concern approximately €215 million (approximately $244 million) of tax benefits that we have claimed related to a 1998 reorganization of the corporate structure of Otis operations in Germany. Upon audit, these tax benefits were disallowed by the German Tax Office. UTC estimates interest associated with the aforementioned tax benefits is an additional approximately €118 million (approximately $134 million). On August 3, 2012, we filed suit in the local German Tax Court (Berlin-Brandenburg). In March 2016, the local German Tax Court dismissed our suit, and we appealed this decision to the German Federal Tax Court (FTC). Following a hearing on July 24, 2018, the FTC remanded the matter to the local German Tax Court for further proceedings.
Loss Contingency Damages Sought	€215 million (approximately $244 million)
Loss Contingency Actions Taken By Defendant	In 2015, UTC made tax and interest payments to German tax authorities of €275 million (approximately $300 million) in order to avoid additional interest accruals pending final resolution of this matter.
Estimate of interest on tax benefit	€118 million (approximately $134 million)
Loss Contingency, Interest Paid	€275 million (approximately $300 million)
Asbestos Matter [Member]
Loss Contingencies [Line Items]
Loss Contingency Allegations	As previously disclosed, like many other industrial companies, we and our subsidiaries have been named as defendants in lawsuits alleging personal injury as a result of exposure to asbestos integrated into certain of our products or business premises. While we have never manufactured asbestos and no longer incorporate it in any currently-manufactured products, certain of our historical products, like those of many other manufacturers, have contained components incorporating asbestos. A substantial majority of these asbestos-related claims have been dismissed without payment or were covered in full or in part by insurance or other forms of indemnity. Additional cases were litigated and settled without any insurance reimbursement. The amounts involved in asbestos related claims were not material individually or in the aggregate in any year.
Loss Contingency, Management's Assessment and Process	Our estimated total liability to resolve all pending and unasserted potential future asbestos claims through 2059 is approximately $333 million and is principally recorded in Other long-term liabilities on our Condensed Consolidated Balance Sheet as of March 31, 2019. This amount is on a pre-tax basis, not discounted, and excludes the Company’s legal fees to defend the asbestos claims (which will continue to be expensed by the Company as they are incurred). In addition, the Company has an insurance recovery receivable for probable asbestos related recoveries of approximately $147 million, which is included primarily in Other assets on our Condensed Consolidated Balance Sheet as of March 31, 2019. The amounts recorded by UTC for asbestos-related liabilities and insurance recoveries are based on currently available information and assumptions that we believe are reasonable. Our actual liabilities or insurance recoveries could be higher or lower than those recorded if actual results vary significantly from the assumptions. Key variables in these assumptions include the number and type of new claims to be filed each year, the outcomes or resolution of such claims, the average cost of resolution of each new claim, the amount of insurance available, allocation methodologies, the contractual terms with each insurer with whom we have reached settlements, the resolution of coverage issues with other excess insurance carriers with whom we have not yet achieved settlements, and the solvency risk with respect to our insurance carriers. Other factors that may affect our future liability include uncertainties surrounding the litigation process from jurisdiction to jurisdiction and from case to case, legal rulings that may be made by state and federal courts, and the passage of state or federal legislation. At the end of each year, the Company will evaluate all of these factors and, with input from an outside actuarial expert, make any necessary adjustments to both our estimated asbestos liabilities and insurance recoveries.
Loss Contingency, Estimate of Possible Loss	$ 333
Loss Contingency, Receivable	$ 147

Leases (Details) - USD ($) $ in Millions	3 Months Ended
Leases (Details) - USD ($) $ in Millions	Mar. 31, 2019	Jan. 01, 2019	Dec. 31, 2018
Lessee, Lease, Description [Line Items]
Finance Lease, Right-of-Use Asset	$ 81
Finance Lease, Liability	86
Operating Lease, Expense	159
Operating Lease, Payments	145
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability	27
Operating Lease, Right-of-Use Asset	2,533	$ 2,600	$ 0
Operating Lease, Liability, Noncurrent	2,020		0
Operating Lease, Liability	$ 2,602	$ 2,700
Operating Lease, Weighted Average Remaining Lease Term	6 years 11 months
Operating Lease, Weighted Average Discount Rate, Percent	3.60%
Lessee, Operating Lease, Liability, Payments, Remainder of Fiscal Year	$ 533
Lessee, Operating Lease, Liability, Payments, Due Year Two	540
Lessee, Operating Lease, Liability, Payments, Due Year Three	446
Lessee, Operating Lease, Liability, Payments, Due Year Four	327
Lessee, Operating Lease, Liability, Payments, Due Year Five	242
Lessee, Operating Lease, Liability, Payments, Due after Year Five	776
Lessee, Operating Lease, Liability, Payments, Due	2,864
Lessee, Operating Lease, Liability, Undiscounted Excess Amount	262
Operating Leases, Future Minimum Payments Due			2,916
Operating Leases, Future Minimum Payments Due, Next Twelve Months			683
Operating Leases, Future Minimum Payments, Due in Two Years			544
Operating Leases, Future Minimum Payments, Due in Three Years			407
Operating Leases, Future Minimum Payments, Due in Four Years			301
Operating Leases, Future Minimum Payments, Due in Five Years			235
Operating Leases, Future Minimum Payments, Due Thereafter			$ 746
Accrued Liabilities [Member]
Lessee, Lease, Description [Line Items]
Operating Lease, Liability, Current	582
Operating lease extensions [Member]
Lessee, Lease, Description [Line Items]
Lessee, Operating Lease, Liability, Payments, Due	$ 228

Segment Financial Data (Details) - USD ($) $ in Millions	3 Months Ended
Segment Financial Data (Details) - USD ($) $ in Millions	Mar. 31, 2019	Mar. 31, 2018
Segment Reporting Information [Line Items]
Revenues	$ 18,365	$ 15,242
Operating profit	$ 2,045	$ 1,928
Operating Profit Margin	11.10%	12.60%
Pratt & Whitney [Member]
Segment Reporting Information [Line Items]
Revenues	$ 4,817	$ 4,329
Operating profit	$ 433	$ 413
Operating Profit Margin	9.00%	9.50%
Total Segments [Member]
Segment Reporting Information [Line Items]
Revenues	$ 18,749	$ 15,559
Operating profit	$ 2,244	$ 2,043
Operating Profit Margin	12.00%	13.10%
Otis [Member]
Segment Reporting Information [Line Items]
Revenues	$ 3,096	$ 3,037
Operating profit	$ 426	$ 450
Operating Profit Margin	13.80%	14.80%
Carrier [Member]
Segment Reporting Information [Line Items]
Revenues	$ 4,323	$ 4,376
Operating profit	$ 529	$ 592
Operating Profit Margin	12.20%	13.50%
Eliminations and other [Member]
Segment Reporting Information [Line Items]
Revenues	$ (384)	$ (317)
Operating profit	(101)	(11)
General corporate expenses [Member]
Segment Reporting Information [Line Items]
Revenues	0	0
Operating profit	(98)	(104)
Collins Aerospace Systems [Member]
Segment Reporting Information [Line Items]
Revenues	6,513	3,817
Operating profit	$ 856	$ 588
Operating Profit Margin	13.10%	15.40%
United States [Member] \| Pratt & Whitney [Member]
Segment Reporting Information [Line Items]
Revenues	$ 3,732	$ 3,121
United States [Member] \| Total Segments [Member]
Segment Reporting Information [Line Items]
Revenues	11,588	8,715
United States [Member] \| Otis [Member]
Segment Reporting Information [Line Items]
Revenues	912	845
United States [Member] \| Carrier [Member]
Segment Reporting Information [Line Items]
Revenues	2,214	2,095
United States [Member] \| Collins Aerospace Systems [Member]
Segment Reporting Information [Line Items]
Revenues	4,730	2,654
Europe [Member] \| Pratt & Whitney [Member]
Segment Reporting Information [Line Items]
Revenues	108	173
Europe [Member] \| Total Segments [Member]
Segment Reporting Information [Line Items]
Revenues	3,379	3,170
Europe [Member] \| Otis [Member]
Segment Reporting Information [Line Items]
Revenues	955	1,006
Europe [Member] \| Carrier [Member]
Segment Reporting Information [Line Items]
Revenues	1,292	1,384
Europe [Member] \| Collins Aerospace Systems [Member]
Segment Reporting Information [Line Items]
Revenues	1,024	607
Asia Pacific [Member] \| Pratt & Whitney [Member]
Segment Reporting Information [Line Items]
Revenues	255	368
Asia Pacific [Member] \| Total Segments [Member]
Segment Reporting Information [Line Items]
Revenues	2,032	2,059
Asia Pacific [Member] \| Otis [Member]
Segment Reporting Information [Line Items]
Revenues	976	922
Asia Pacific [Member] \| Carrier [Member]
Segment Reporting Information [Line Items]
Revenues	612	685
Asia Pacific [Member] \| Collins Aerospace Systems [Member]
Segment Reporting Information [Line Items]
Revenues	189	84
Other [Member] \| Pratt & Whitney [Member]
Segment Reporting Information [Line Items]
Revenues	722	667
Other [Member] \| Total Segments [Member]
Segment Reporting Information [Line Items]
Revenues	1,750	1,615
Other [Member] \| Otis [Member]
Segment Reporting Information [Line Items]
Revenues	253	264
Other [Member] \| Carrier [Member]
Segment Reporting Information [Line Items]
Revenues	205	212
Other [Member] \| Collins Aerospace Systems [Member]
Segment Reporting Information [Line Items]
Revenues	570	472
Commercial and industrial, non aerospace [Member] \| Pratt & Whitney [Member]
Segment Reporting Information [Line Items]
Revenues	23	21
Commercial and industrial, non aerospace [Member] \| Total Segments [Member]
Segment Reporting Information [Line Items]
Revenues	7,456	7,449
Commercial and industrial, non aerospace [Member] \| Otis [Member]
Segment Reporting Information [Line Items]
Revenues	3,096	3,037
Commercial and industrial, non aerospace [Member] \| Carrier [Member]
Segment Reporting Information [Line Items]
Revenues	4,323	4,376
Commercial and industrial, non aerospace [Member] \| Collins Aerospace Systems [Member]
Segment Reporting Information [Line Items]
Revenues	14	15
Commercial Aerospace [Member] \| Pratt & Whitney [Member]
Segment Reporting Information [Line Items]
Revenues	3,375	3,199
Commercial Aerospace [Member] \| Total Segments [Member]
Segment Reporting Information [Line Items]
Revenues	8,203	6,110
Commercial Aerospace [Member] \| Otis [Member]
Segment Reporting Information [Line Items]
Revenues	0	0
Commercial Aerospace [Member] \| Carrier [Member]
Segment Reporting Information [Line Items]
Revenues	0	0
Commercial Aerospace [Member] \| Collins Aerospace Systems [Member]
Segment Reporting Information [Line Items]
Revenues	4,828	2,911
Military aerospace [Member] \| Pratt & Whitney [Member]
Segment Reporting Information [Line Items]
Revenues	1,419	1,109
Military aerospace [Member] \| Total Segments [Member]
Segment Reporting Information [Line Items]
Revenues	3,090	2,000
Military aerospace [Member] \| Otis [Member]
Segment Reporting Information [Line Items]
Revenues	0	0
Military aerospace [Member] \| Carrier [Member]
Segment Reporting Information [Line Items]
Revenues	0	0
Military aerospace [Member] \| Collins Aerospace Systems [Member]
Segment Reporting Information [Line Items]
Revenues	1,671	891
Service [Member] \| Pratt & Whitney [Member]
Segment Reporting Information [Line Items]
Revenues	1,844	1,792
Service [Member] \| Total Segments [Member]
Segment Reporting Information [Line Items]
Revenues	5,525	5,018
Service [Member] \| Otis [Member]
Segment Reporting Information [Line Items]
Revenues	1,817	1,818
Service [Member] \| Carrier [Member]
Segment Reporting Information [Line Items]
Revenues	757	779
Service [Member] \| Collins Aerospace Systems [Member]
Segment Reporting Information [Line Items]
Revenues	1,107	629
Product [Member] \| Pratt & Whitney [Member]
Segment Reporting Information [Line Items]
Revenues	2,973	2,537
Product [Member] \| Total Segments [Member]
Segment Reporting Information [Line Items]
Revenues	13,224	10,541
Product [Member] \| Otis [Member]
Segment Reporting Information [Line Items]
Revenues	1,279	1,219
Product [Member] \| Carrier [Member]
Segment Reporting Information [Line Items]
Revenues	3,566	3,597
Product [Member] \| Collins Aerospace Systems [Member]
Segment Reporting Information [Line Items]
Revenues	$ 5,406	$ 3,188

Accounting Pronouncements (Details)	3 Months Ended
Accounting Pronouncements (Details)	Mar. 31, 2019
ASU 2018-13 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
New Accounting Pronouncement or Change in Accounting Principle, Description	In August 2018, the FASB issued ASU 2018-13, Fair Value Measurement (Topic 820): Disclosure Framework—Changes to the Disclosure Requirements for Fair Value Measurement. The new standard removes the disclosure requirements for the amount of and reasons for transfers between Level 1 and Level 2 of the fair value hierarchy. This standard did not have a material impact on our financial statement disclosures. We early adopted this standard effective January 1, 2019.
ASU 2018-14 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
New Accounting Pronouncement or Change in Accounting Principle, Description	In August 2018, the FASB issued ASU 2018-14, Compensation—Retirement Benefits—Defined Benefit Plans—General (Subtopic 715-20): Disclosure Framework—Changes to the Disclosure Requirements for Defined Benefit Plans. The new standard includes updates to the disclosure requirements for defined benefit plans including several additions, deletions and modifications to the disclosure requirements. The provisions of this ASU are effective for years beginning after December 15, 2020, with early adoption permitted. We are currently evaluating the impact of this ASU.
ASU 2018-15 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
New Accounting Pronouncement or Change in Accounting Principle, Description	In August 2018, the FASB issued ASU 2018-15, Intangibles—Goodwill and Other—Internal-Use Software (Subtopic 350-40): Customer’s Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That Is a Service Contract. The new standard provides updated guidance surrounding implementation costs associated with cloud computing arrangements that are service contracts. The provisions of this ASU are effective for years beginning after December 15, 2020, with early adoption permitted. We are currently evaluating the impact of this ASU.
ASU 2018-17 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
New Accounting Pronouncement or Change in Accounting Principle, Description	In October 2018, the FASB issued ASU 2018-17, Consolidation (Topic 810): Targeted Improvements to Related Party Guidance for Variable Interest Entities. The amendments in this update for determining whether a decision-making fee is a variable interest require reporting entities to consider indirect interests held through related parties under common control on a proportional basis rather than as the equivalent of a direct interest in its entirety (as currently required in generally accepted accounting principles (GAAP)). Therefore, these amendments likely will result in more decision makers not having a variable interest through their decision-making arrangements. These amendments also will create alignment between determining whether a decision making fee is a variable interest and determining whether a reporting entity within a related party group is the primary beneficiary of a VIE. If fewer decision-making fees are considered variable interests, the focus on determining which party within a related party group under common control may have a controlling financial interest will be shifted to the variable interest holders in the group with more significant economic interests. This will significantly reduce the risk that decision makers with insignificant direct and indirect interests could be deemed the primary beneficiary of a VIE. The provisions of this ASU are effective for years beginning after December 15, 2019, with early adoption permitted. We are currently evaluating the impact of this ASU.
ASU 2018-18 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
New Accounting Pronouncement or Change in Accounting Principle, Description	In November 2018, the FASB issued ASU 2018-18, Collaborative Arrangements (Topic 808): Clarifying the Interaction between Topic 808 and Topic 606. The amendments in this update make targeted improvements GAAP for collaborative arrangements as follows: clarify that certain transactions between collaborative arrangement participants should be accounted for as revenue under Topic 606 when the collaborative arrangement participant is a customer in the context of a unit of account. In those situations, all the guidance in Topic 606 should be applied, including recognition, measurement, presentation, and disclosure requirements; add unit-of-account guidance in Topic 808 to align with the guidance in Topic 606 (that is, a distinct good or service) when an entity is assessing whether the collaborative arrangement or a part of the arrangement is within the scope of Topic 606; and require that in a transaction with a collaborative arrangement participant that is not directly related to sales to third parties, presenting the transaction together with revenue recognized under Topic 606 is precluded if the collaborative arrangement participant is not a customer. The provisions of this ASU are effective for years beginning after December 15, 2019, with early adoption permitted. We are currently evaluating the impact of this ASU.