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Document and Entity Information - USD ($)	3 Months Ended
Document and Entity Information - USD ($)	Mar. 31, 2016	Jun. 30, 2015
Document and Entity Information [Abstract]
Document Type	10-Q
Document Period End Date	Mar. 31, 2016
Amendment Flag	false
Document Fiscal Year Focus	2016
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 Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Filer Category	Large Accelerated Filer
Entity Public Float		$ 98,745,805,884
Entity Common Stock, Shares Outstanding	836,865,684

Condensed Consolidated Statement of Operations Condensed Consolidated Statement of Operations - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Net Sales:
Product Sales	$ 9,419	$ 9,423
Service Sales	3,938	3,897
Total net sales	13,357	13,320
Costs and Expenses:
Cost of products sold	7,087	6,999
Cost of services sold	2,567	2,507
Research and development	541	564
Selling, general and administrative	1,363	1,476
Total costs and expenses	11,558	11,546
Other income, net	146	408
Operating profit	1,945	2,182
Interest expense, net	223	217
Income from continuing operations before income taxes	1,722	1,965
Income tax expense	461	530
Net Income from continuing operations	1,261	1,435
Less: Noncontrolling interest in subsidiaries' earnings from continuing operations	81	71
Income from continuing operations attributable to common shareowners	1,180	1,364
Discontinued operations (Note 2:)
Disposal Group, Including Discontinued Operation, Operating Income	0	91
Discontinued Operation, Gain from Disposal of Discontinued Operation, before Income Tax	18	0
Income tax expense	7	28
Income from discontinued operations	11	63
Less: Noncontrolling interest in subsidiaries' earnings from discontinued operations	0	1
Income from discontinued operations attributable to common shareowners	11	62
Net income attributable to common shareowners	$ 1,191	$ 1,426
Earnings Per Share of Common Stock - Basic:
Income from continuing operations attributable to common shareowners	$ 1.43	$ 1.53
Net income attributable to common shareowners	1.44	1.60
Earnings Per Share of Common Stock - Diluted:
Income from continuing operations attributable to common shareowners	1.42	1.51
Net income attributable to common shareowners	$ 1.43	$ 1.58

Condensed Consolidated Statement of Comprehensive Income - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Statement of Comprehensive Income [Abstract]
Net income from continuing operations	$ 1,261	$ 1,435
Net income from discontinued operations	11	63
Net Income	1,272	1,498
Foreign currency translation adjustments
Foreign currency translation adjustments arising during period	39	(705)
Reclassification adjustments for loss (gain) on sale of an investment in a foreign entity recognized in Other income, net	(1)	2
Foreign Currency Transaction and Translation Adjustment, before Tax, Portion Attributable to Parent	40	(707)
Pension and post-retirement benefit plans
Pension and post-retirement benefit plans adjustments during the period	(25)	52
Amortization of actuarial loss, prior service cost and transition obligation	126	217
Total pension and post-retirement benefit plans, before tax	(101)	(269)
Tax expense	(38)	(97)
Pension and Other Postretirement Benefit Plans, Net of Tax	(63)	(172)
Unrealized (loss) gain on available-for-sale securities
Unrealized holding gain arising during period	69	86
Reclassification adjustments for gain included in Other income, net	27	28
Total unrealized gain on available for-sale securities, before tax	42	58
Tax expense	19	22
Total unrealized gain on available for-sale securities, net of tax	23	36
Change in unrealized cash flow hedging
Unrealized cash flow hedging gain (loss) arising during the period	159	(184)
Loss reclassified into Product Sales	(62)	(57)
Total unrealized loss on cash-flow hedging, before tax	221	(127)
Tax (expense) benefit	59	(36)
Total unrealized gain (loss) on cash-flow hedging, net of tax	162	(91)
Other comprehensive income (loss), net of tax	288	(590)
Comprehensive income	1,560	908
Comprehensive income attributable to noncontrolling interest	94	32
Comprehensive income attributable to common shareowners	$ 1,466	$ 876

Condensed Consolidated Balance Sheet - USD ($) $ in Millions	Mar. 31, 2016	Dec. 31, 2015
Assets
Cash and cash equivalents	$ 7,215	$ 7,075
Accounts receivable, net	10,899	10,653
Inventories and contracts in progress, net	8,507	8,135
Other Assets, current	906	843
Total Current Assets	27,527	26,706
Customer financing assets	967	1,018
Future income tax benefits	1,905	1,961
Fixed assets	18,813	18,494
Less: Accumulated depreciation	10,050	9,762
Fixed assets, net	8,763	8,732
Goodwill	27,408	27,301
Intangible assets, net	15,719	15,603
Other assets	6,282	6,163
Total Assets	88,571	87,484
Liabilities and Equity
Short-term borrowings	1,233	926
Accounts payable	6,579	6,875
Accrued liabilities	12,581	14,638
Long-term debt currently due	130	179
Total Current Liabilities	20,523	22,618
Long-term debt	21,688	19,320
Future pension and postretirement benefit obligations	5,869	6,022
Other long-term liabilities	10,461	10,558
Total Liabilities	58,541	58,518
Commitments and contingent liabilities (Note 14)
Redeemable noncontrolling interest	127	122
Shareowners' Equity:
Common Stock	16,256	16,033
Treasury Stock	31,082	30,907
Retained earnings	50,625	49,956
Unearned ESOP shares	102	105
Accumulated other comprehensive loss	(7,344)	(7,619)
Total Shareowners' Equity	28,353	27,358
Noncontrolling interest	1,550	1,486
Total Equity	29,903	28,844
Total Liabilities and Equity	$ 88,571	$ 87,484

Condensed Consolidated Statement of Cash Flows - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Operating Activities of Continuing Operations:
Net income from continuing operations	$ 1,261	$ 1,435
Adjustments to reconcile income from continuing operations to net cash flows provided by operating activities of continuing operations:
Depreciation and amortization	466	458
Deferred income tax provision	134	153
Stock compensation cost	48	46
Change in:
Accounts receivable	110	357
Inventories and contracts in progress	319	458
Other current assets	81	(5)
Accounts payable and accrued liabilities	(130)	537
Global pension contributions	75	45
Repayment of Canadian royalty obligation	(237)	0
Other operating activities, net	162	128
Net cash flows provided by operating activities of continuing operations	795	1,646
Investing Activities of Continuing Operations:
Capital expenditures	286	323
Investments in businesses	79	230
Dispositions of businesses	16	158
Decrease (increase) in customer financing assets, net	(22)	14
Increase in collaboration intangible assets	98	132
Receipts from settlements of derivative contracts	42	569
Other investing activities, net	100	(178)
Net cash flows used in investing activities of continuing operations	(483)	206
Financing Activities of Continuing Operations:
Issuance of long-term debt, net	2,324	9
Increase in short-term borrowings, net	306	2,177
Proceeds from Common Stock issued under employee stock plans	2	24
Dividends paid on Common Stock	509	553
Repurchase of Common Stock	0	3,000
Other financing activities, net	(85)	(40)
Net cash flows provided by (used) in financing activities	2,038	(1,383)
Discontinued Operations:
Net cash used in operating activities	(2,227)	(336)
Net cash used in investing activities	0	(33)
Net cash used in financing activities	0	(1)
Net cash flows used in discontinued operations	(2,227)	(370)
Effect of Exchange Rate on Cash and Cash Equivalents [Abstract]
Effect of foreign exchange rate changes on cash and cash equivalents	17	(53)
Net increase in cash and cash equivalents	140	46
Cash and Cash Equivalents, beginning of year	7,075	5,235
Cash and Cash Equivalents, end of period	7,215	5,281
Less: Cash and cash equivalents of businesses held for sale	0	7
Cash and cash equivalents, end of period	$ 7,215	$ 5,274

Introduction of Notes to Condensed Consolidated Financial Statements	3 Months Ended
	Mar. 31, 2016
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Introduction of Notes to Condensed Consolidated Financial Statements	The Condensed Consolidated Financial Statements at March 31, 2016 and for the quarters ended March 31, 2016 and 2015 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 (2015 Annual Report) incorporated by reference to our Annual Report on Form 10-K for calendar year 2015 (2015 Form 10-K). Certain reclassifications have been made to the prior year amounts to conform to the current year presentation. On November 6, 2015, we completed the sale of the Sikorsky Aircraft business (Sikorsky) to Lockheed Martin Corp. Accordingly, the results of operations and the related cash flows of Sikorsky have been reclassified to Discontinued Operations in our Consolidated Statements of Operations and Cash Flows for the quarter ended March 31, 2015. See Note 2 for further discussion.

Acquisitions, Dispositions, Goodwill and Other Intangible Assets

3 Months Ended

Mar. 31, 2016

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 and Dispositions. During the quarter ended March 31, 2016, our investment in business acquisitions was $79 million and consisted of a number of small acquisitions, primarily in our commercial businesses.

As a result of the 2012 transactions related to IAE International Aero Engines AG (IAE), Pratt & Whitney holds a 61% net interest in the collaboration 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 jet engine program through involvement with the collaborators. IAE retains limited equity with the primary economics of the V2500 program passed to the participants in the separate collaboration arrangement. As such, we have determined that IAE is a variable interest entity with Pratt & Whitney its primary beneficiary, and IAE has, therefore, been consolidated. The carrying amounts and classification of assets and liabilities for IAE in our Condensed Consolidated Balance Sheet as of March 31, 2016 are as follows:



(Dollars in millions)
Current assets	$	2,161
Noncurrent assets	968
Total assets	$	3,129

Current liabilities	$	1,792
Noncurrent liabilities	1,182
Total liabilities	$	2,974

Goodwill. Changes in our goodwill balances for the quarter ended March 31, 2016 were as follows:



(Dollars in millions)	Balance as of January 1, 2016		Goodwill Resulting from Business Combinations		Foreign Currency Translation and Other			Balance as of March 31, 2016
Otis	$	1,566	$	—	$	21		$	1,587
UTC Climate, Controls & Security	9,458		89		5			9,552
Pratt & Whitney	1,515		—		—			1,515
UTC Aerospace Systems	14,759		20		(28		)	14,751
Total Segments	27,298		109		(2		)	27,405
Eliminations and other	3		—		—			3
Total	$	27,301	$	109	$	(2	)	$	27,408

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



	March 31, 2016					December 31, 2015
(Dollars in millions)	Gross Amount		Accumulated Amortization			Gross Amount		Accumulated Amortization
Amortized:
Service portfolios	$	2,048	$	(1,371	)	$	1,977	$	(1,307	)
Patents and trademarks	367		(196		)	361		(189		)
IAE collaboration	3,436		(116		)	3,336		(86		)
Customer relationships and other	12,600		(3,136		)	12,430		(2,988		)
	18,451		(4,819		)	18,104		(4,570		)
Unamortized:
Trademarks and other	2,087		—			2,069		—
Total	$	20,538	$	(4,819	)	$	20,173	$	(4,570	)

Customer relationship intangible assets include payments made to our customers to secure certain contractual rights. We amortize these intangible assets based on the underlying pattern of economic benefit, which may result in an amortization method other than straight-line. We classify amortization of such payments as a reduction of sales. The IAE collaboration intangible asset is amortized based upon the pattern of economic benefits as represented by the underlying cash flows.

Amortization of intangible assets was $187 million and $179 million for the quarters ended March 31, 2016 and 2015, respectively. The following is the expected amortization of intangible assets for the years 2016 through 2021, which reflects an increase in expected amortization expense due to the pattern of economic benefit on certain aerospace intangible assets.



(Dollars in millions)	Remaining 2016		2017		2018		2019		2020		2021
Amortization expense	$	538	$	736	$	764	$	759	$	757	$	797

Discontinued Operations

3 Months Ended

Mar. 31, 2016

Discontinued Operations and Disposal Groups [Abstract]

Disposal Groups, Including Discontinued Operations, Disclosure [Text Block]

Discontinued Operations

On November 6, 2015, we completed the sale of Sikorsky to Lockheed Martin Corp. Accordingly, the results of operations and the related cash flows related to Sikorsky have been reclassified to Discontinued Operations in our Condensed Consolidated Statements of Operations, Comprehensive Income and Cash Flows for the quarter ended March 31, 2015. In the quarter ended March 31, 2016, we recognized approximately $18 million of additional Gain on disposal of discontinued operations including settlement of working capital adjustments, and net cash outflows from discontinued operations of approximately $2.2 billion, primarily related to the payment of Federal taxes related to the 2015 gain realized on sale of Sikorsky.

The following summarized financial information related to Sikorsky has been segregated from continuing operations and reported as Discontinued Operations:



	Quarter Ended March 31,
(Dollars in millions)	2016			2015
Discontinued Operations:
Net sales	$	—		$	1,266
Cost of sales	—			1,062
Research and development	—			38
Selling, general and administrative	—			87
Other income, net	—			(12		)
Income from operations	—			91
Gain on disposal	18			—
Income tax expense	(7		)	(28		)
Income from discontinued operations	$	11		$	63

- Definition

The entire disclosure related to a disposal group. Includes, but is not limited to, a discontinued operation, disposal classified as held-for-sale or disposed of by means other than sale or disposal of an individually significant component.

+ References

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+ Details

Earnings Per Share

3 Months Ended

Mar. 31, 2016

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)	2016		2015
Net income attributable to common shareowners:
Net income from continuing operations	$	1,180	$	1,364
Net income from discontinued operations	11		62
Net income attributable to common shareowners	$	1,191	$	1,426
Basic weighted average number of shares outstanding	825.0		890.3
Stock awards and equity units	6.2		13.9
Diluted weighted average number of shares outstanding	831.2		904.2
Earnings Per Share of Common Stock - Basic:
Net income from continuing operations	$	1.43	$	1.53
Net income from discontinued operations	0.01		0.07
Net income attributable to common shareowners	1.44		1.60
Earnings Per Share of Common Stock - Diluted:
Net income from continuing operations	$	1.42	$	1.51
Net income from discontinued operations	0.01		0.07
Net income attributable to common shareowners	1.43		1.58

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. These outstanding stock awards are not included in the computation of diluted earnings per share because the effect would be anti-dilutive. For the quarters ended March 31, 2016 and 2015, the number of stock awards excluded from the computation was approximately 16.4 million and 0.4 million, respectively.

Inventories and Contracts in Progress

3 Months Ended

Mar. 31, 2016

Inventory Disclosure [Abstract]

Inventories and Contracts in Progress [Text Block]

Inventories and Contracts in Progress



(Dollars in millions)	March 31, 2016			December 31, 2015
Raw materials	$	2,218		$	2,037
Work-in-process	2,639			2,422
Finished goods	3,058			3,183
Contracts in progress	8,900			8,668
	16,815			16,310
Less:
Progress payments, secured by lien, on U.S. Government contracts	(148		)	(239		)
Billings on contracts in progress	(8,160		)	(7,936		)
	$	8,507		$	8,135

Inventory also includes capitalized contract development costs related to certain aerospace programs at UTC Aerospace Systems. As of March 31, 2016 and December 31, 2015, these capitalized costs were $151 million and $152 million, respectively, which will be liquidated as production units are delivered to the customer.

Borrowings and Lines of Credit

3 Months Ended

Mar. 31, 2016

Debt Disclosure [Abstract]

Borrowings and Lines of Credit [Text Block]

Borrowings and Lines of Credit



(Dollars in millions)	March 31, 2016		December 31, 2015
Commercial paper	$	1,073	$	727
Other borrowings	160		199
Total short-term borrowings	$	1,233	$	926

At March 31, 2016, we had revolving credit agreements with various banks permitting aggregate borrowings of up to $4.35 billion pursuant to a $2.20 billion revolving credit agreement and a $2.15 billion multicurrency revolving credit agreement, both of which expire in May 2019. As of March 31, 2016, there were no borrowings under these revolving credit agreements. The undrawn portions of these revolving credit agreements are also available to serve as backup facilities for the issuance of commercial paper. As of March 31, 2016, our maximum commercial paper borrowing limit was $4.35 billion. We use our commercial paper borrowings for general corporate purposes, including the funding of potential acquisitions, debt refinancing, and repurchases of our common stock. The need for commercial paper borrowings arises when the use of domestic cash for acquisitions, dividends, and share repurchases exceeds the sum of domestic cash generation and foreign cash repatriated to the U.S.

On February 22, 2016 we issued €950 million aggregate principal amount of 1.125% notes due 2021, €500 million aggregate principal amount of 1.875% notes due 2026 and €750 million aggregate principal amount of floating rate notes due 2018. The net proceeds from these debt issuances were used for general corporate purposes.

Long-term debt consisted of the following:



(Dollars in millions)	March 31, 2016		December 31, 2015
5.375% notes due 2017 ¹	$	1,000	$	1,000
1.800% notes due 2017 ¹	1,500		1,500
EURIBOR plus 0.800% floating rate notes due 2018 (€750 million principal value) ²	837		—
1.778% junior subordinated notes due 2018	1,100		1,100
6.800% notes due 2018	99		99
6.125% notes due 2019 ¹	1,250		1,250
8.875% notes due 2019	271		271
4.500% notes due 2020 ¹	1,250		1,250
4.875% notes due 2020	171		171
1.125% notes due 2021 (€950 million principal value) ³	1,061		—
8.750% notes due 2021	250		250
3.100% notes due 2022 ¹	2,300		2,300
1.250% notes due 2023 (€750 million principal value) ³	837		817
1.875% notes due 2026 (€500 million principal value) ³	558		—
7.100% notes due 2027	141		141
6.700% notes due 2028	400		400
7.500% notes due 2029 ¹	550		550
5.400% notes due 2035 ¹	600		600
6.050% notes due 2036 ¹	600		600
6.800% notes due 2036	134		134
7.000% notes due 2038	159		159
6.125% notes due 2038 ¹	1,000		1,000
5.700% notes due 2040 ¹	1,000		1,000
4.500% notes due 2042 ¹	3,500		3,500
4.150% notes due 2045 ⁴	850		850
Project financing obligations	171		191
Other (including capitalized leases)	195		306
Total principal long-term debt	21,784		19,439
Other (fair market value adjustments and discounts)	34		60
Total long-term debt	21,818		19,499
Less: current portion	130		179
Long-term debt, net of current portion	$	21,688	$	19,320

We may redeem the above notes, in whole or in part, at our option at any time at a redemption price in U.S. Dollars equal to the greater of 100% of the principal amount of the notes to be redeemed or the sum of the present values of the remaining scheduled payments of principal and interest on the notes to be redeemed, discounted to the redemption date on a semiannual basis at the adjusted treasury rate plus 10-50 basis points. The redemption price will also include interest accrued to the date of redemption on the principal balance of the notes being redeemed.


2	These notes bear interest at the three-month EURIBOR rate plus 0.800%, established quarterly. The interest rate in effect at March 31, 2016 was 0.605%. 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.

We may redeem these notes, in whole or in part, at our option at any time. If redeemed earlier than three months prior to the stated maturity date, the redemption price in Euro shall equal the greater of 100% of the principal amount of the notes to be redeemed or the sum of the present values of the remaining scheduled payments of principal and interest on the notes to be redeemed, discounted to the redemption date on an annual basis at a rate based upon a comparable German federal government bond whose maturity is closest to the maturity of the notes plus 15-30 basis points. In addition, 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.

We may redeem these notes, in whole or in part, at our option at any time. If redeemed prior to November 16, 2044, the redemption price in U.S. Dollars shall equal the greater of 100% of the principal amount of the notes to be redeemed or the sum of the present values of the remaining scheduled payments of principal and interest on the notes to be redeemed, discounted to the redemption date on a semiannual basis at the adjusted treasury rate plus 25 basis points.

We have an existing universal shelf registration statement filed with the Securities and Exchange Commission (SEC) for an indeterminate amount of equity and debt securities for future issuance, subject to our internal limitations on the amount of equity and debt to be issued under this shelf registration statement. We plan to renew the shelf registration prior to its expiration on May 29, 2016.

Income Taxes	3 Months Ended
Income Taxes	Mar. 31, 2016
Income Tax Disclosure [Abstract]
Income Tax Disclosure [Text Block]	Income Taxes 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, Canada, China, France, Germany, Hong Kong, Italy, Japan, Singapore, South Korea, Spain, 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 2003. 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 over the next 12 months the amount of unrecognized tax benefits may change within a range of a net increase of $60 million to a net decrease of $460 million as a result of additional worldwide uncertain tax positions, the revaluation of current uncertain tax positions arising from developments in examinations, in appeals, or in the courts, or the closure of tax statutes. See Note 14, 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 2011 and 2012 are currently under review by the Examination Division of the Internal Revenue Service (IRS), which is expected to continue beyond the next 12 months. Goodrich Corporation tax years 2011 and 2012 through the date of acquisition by UTC are currently under review by the Examination Division of the IRS, which may be completed within the next 12 months.

Employee Benefit Plans

3 Months Ended

Mar. 31, 2016

Defined Pension, Defined Contribution and Other Postretirement Benefit Plans [Abstract]

Employee Benefit Plans [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)	2016		2015
Defined benefit plans	$	75	$	45
Defined contribution plans	78		96

There were no contributions to our domestic defined benefit pension plans in the quarters ended March 31, 2016 and 2015. 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)	2016			2015			2016			2015
Service cost	$	94		$	125		$	1		$	1
Interest cost	302			351			8			8
Expected return on plan assets	(556		)	(569		)	—			—
Amortization	(8		)	(3		)	—			—
Recognized actuarial net loss (gain)	135			221			(1		)	(1		)
Net settlement and curtailment loss	12			6			—			—
Total net periodic benefit (income) cost	$	(21	)	$	131		$	8		$	8

There were no curtailment losses related to discontinued operations for the quarters ended March 31, 2016 and 2015. Total net periodic benefit cost in the table above, for the quarter ended March 31, 2015, includes approximately $25 million related to, and recorded in, discontinued operations.

In 2015, we changed the approach we use to estimate the service and interest components of net periodic pension cost for our significant pension plans. Historically, we estimated the service and interest cost components utilizing a single weighted-average discount rate derived from the yield curve used to measure the benefit obligation at the beginning of the period. We elected to utilize a full yield curve approach in the estimation of these components by applying the specific spot rates along the yield curve used in determination of the benefit obligation to the relevant projected cash flows. We made this change to provide a more precise measurement of service and interest costs by improving the correlation between projected benefit cash flows to the corresponding spot yield curve rates. This change does not affect the measurement of our total benefit obligations. The discount rates used to measure service cost and interest cost during 2016 are 3.9% and 3.5%, respectively. The previous method would have used a discount rate for both service and interest costs of 4.1%. This change decreases the service and interest cost components of our annual net periodic pension cost by approximately $215 million for 2016. We have accounted for this change as a change in accounting estimate and, accordingly, have accounted for it prospectively, effective January 1, 2016.

Restructuring and Other Costs

3 Months Ended

Mar. 31, 2016

Restructuring and Related Activities [Abstract]

Restructuring and Other Costs [Text Block]

Restructuring Costs

During the quarter ended March 31, 2016, we recorded net pre-tax restructuring costs totaling $62 million for new and ongoing restructuring actions. We recorded charges in the segments as follows:



(Dollars in millions)
Otis	$	15
UTC Climate, Controls & Security	28
Pratt & Whitney	5
UTC Aerospace Systems	13
Eliminations and other	1
Total	$	62

Restructuring charges incurred during the quarter ended March 31, 2016 primarily relate to actions initiated during 2016 and 2015, and were recorded as follows:



(Dollars in millions)
Cost of sales	$	31
Selling, general and administrative	31
Total	$	62

2016 Actions. During the quarter ended March 31, 2016, we recorded net pre-tax restructuring costs totaling $28 million, including $13 million in cost of sales, and $15 million in selling, general and administrative expenses. The 2016 actions relate to ongoing cost reduction efforts, including workforce reductions and the consolidation of field operations.

We are targeting the majority of the remaining workforce and all facility related cost reduction actions for completion during 2016 and 2017. No specific plans for significant other actions have been finalized at this time. All costs incurred during the quarter ended March 31, 2016 relate to severance. The following table summarizes the accrual balance and utilization for the 2016 restructuring actions:



(Dollars in millions)	Total
Net pre-tax restructuring costs	$	28
Utilization and foreign exchange	(3		)
Balance at March 31, 2016	$	25

The following table summarizes expected, incurred and remaining costs for the 2016 restructuring actions by segment:



(Dollars in millions)	Expected Costs		Costs Incurred Quarter Ended March 31, 2016			Remaining Costs at March 31, 2016
Otis	$	14	$	(10	)	$	4
UTC Climate, Controls & Security	21		(13		)	8
UTC Aerospace Systems	73		(5		)	68
Total	$	108	$	(28	)	$	80

2015 Actions. During the quarter ended March 31, 2016, we recorded net pre-tax restructuring costs totaling $29 million for restructuring actions initiated in 2015, including $15 million in cost of sales and $14 million in selling, general and administrative expenses. The 2015 actions relate to ongoing cost reduction efforts, including workforce reductions and the consolidation of field operations. The following table summarizes the accrual balances and utilization by cost type for the 2015 restructuring actions:



(Dollars in millions)	Severance			Facility Exit, Lease Termination and Other Costs			Total
Restructuring accruals at January 1, 2016	$	183		$	23		$	206
Net pre-tax restructuring costs	21			8			29
Utilization and foreign exchange	(63		)	(8		)	(71		)
Balance at March 31, 2016	$	141		$	23		$	164

The following table summarizes expected, incurred and remaining costs for the 2015 restructuring actions by segment:



(Dollars in millions)	Expected Costs		Costs Incurred in 2015			Costs Incurred Quarter Ended March 31, 2016			Remaining Costs at March 31, 2016
Otis	$	54	$	(35	)	$	(5	)	$	14
UTC Climate, Controls & Security	207		(83		)	(14		)	110
Pratt & Whitney	100		(82		)	(1		)	17
UTC Aerospace Systems	144		(105		)	(8		)	31
Eliminations and other	22		(21		)	(1		)	—
Total	$	527	$	(326	)	$	(29	)	$	172

2014 and Prior Actions. As of March 31, 2016, we have approximately $83 million of accrual balances remaining related to 2014 actions.

Financial Instruments

3 Months Ended

Mar. 31, 2016

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Derivative Financial Instruments [Text Block]

Financial Instruments

We enter into derivative instruments for risk management purposes only, 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 $16.2 billion and $15.6 billion at March 31, 2016 and December 31, 2015, respectively.

The following table summarizes the fair value of derivative instruments as of March 31, 2016 and December 31, 2015 which consist solely of foreign exchange contracts:



	Asset Derivatives				Liability Derivatives
(Dollars in millions)	March 31, 2016		December 31, 2015		March 31, 2016		December 31, 2015
Derivatives designated as hedging instruments	$	26	$	4	$	232	$	428
Derivatives not designated as hedging instruments	70		97		79		105

As discussed in Note 5, we have issued approximately €2.95 billion of Euro-denominated debt, which qualifies as a net investment hedge against our investments in European businesses under ASC 815, Derivatives and Hedging. As of March 31, 2016, the net investment hedge is deemed to be effective as defined under ASC 815.

The amount of gains and losses related to the Company's derivative financial instruments was as follows:



	Quarter Ended March 31,
(Dollars in millions)	2016		2015
Gain (loss) recorded in Accumulated other comprehensive loss	$	159	$	(184	)
Loss reclassified from Accumulated other comprehensive loss into Product sales (effective portion)	62		57

Assuming current market conditions continue, a $137 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, 2016, all derivative contracts accounted for as cash flow hedges will mature by November 2022.

The effect on the Condensed Consolidated Statement of Operations of foreign exchange contracts not designated as hedging instruments was as follows:



	Quarter Ended March 31,
(Dollars in millions)	2016		2015
Gain recognized in Other income, net	$	15	$	18

We received $42 million and $569 million from settlements of derivative contracts during the quarters ended March 31, 2016 and 2015, respectively.

- Definition

The entire disclosure for derivative instruments and hedging activities including, but not limited to, risk management strategies, non-hedging derivative instruments, assets, liabilities, revenue and expenses, and methodologies and assumptions used in determining the amounts.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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+ Details

Fair Value Measurements

3 Months Ended

Mar. 31, 2016

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, 2016 and December 31, 2015:



March 31, 2016 (Dollars in millions)	Total			Level 1		Level 2			Level 3
Recurring fair value measurements:
Available-for-sale securities	$	1,083		$	1,083	$	—		$	—
Derivative assets	96			—		96			—
Derivative liabilities	(311		)	—		(311		)	—



December 31, 2015 (Dollars in millions)	Total			Level 1		Level 2			Level 3
Recurring fair value measurements:
Available-for-sale securities	$	951		$	951	$	—		$	—
Derivative assets	101			—		101			—
Derivative liabilities	(533		)	—		(533		)	—

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 and commodity derivatives 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, 2016, there were no significant transfers in and out of Level 1 and Level 2.

As of March 31, 2016, 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, 2016 and December 31, 2015:



	March 31, 2016						December 31, 2015
(Dollars in millions)	Carrying Amount			Fair Value			Carrying Amount			Fair Value
Long-term receivables	$	129		$	122		$	122		$	107
Customer financing notes receivable	456			433			403			403
Short-term borrowings	(1,233		)	(1,233		)	(926		)	(926		)
Long-term debt (excluding capitalized leases)	(21,795		)	(24,219		)	(19,476		)	(21,198		)
Long-term liabilities	(429		)	(428		)	(458		)	(419		)

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 as of March 31, 2016:



(Dollars in millions)	Total			Level 1		Level 2			Level 3
Long-term receivables	$	122		$	—	$	122		$	—
Customer financing notes receivable	433			—		433			—
Short-term borrowings	(1,233		)	—		(1,073		)	(160		)
Long-term debt (excluding capitalized leases)	(24,219		)	—		(23,961		)	(258		)
Long-term liabilities	(428		)	—		(428		)	—

We had commercial aerospace financing and other contractual commitments totaling approximately $14.0 billion and $14.6 billion as of March 31, 2016 and December 31, 2015, respectively, related to commercial aircraft and certain contractual rights to provide product on new aircraft platforms. Risks associated with changes in interest rates on these commitments are mitigated by the fact that 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, 2016

Receivables [Abstract]

Long-Term Financing Receivables [Text Block]

Long-Term Financing Receivables

Our long-term financing receivables primarily represent balances related to our aerospace businesses, such as long-term trade accounts receivable, leases receivable, and notes receivable. We also have other long-term receivables related to our commercial businesses; however, both the individual and aggregate amounts of those other receivables are not significant.

Long-term trade accounts receivable, including unbilled receivables related to long-term aftermarket contracts, are principally amounts arising from the sale of goods and delivery of services with a contractual maturity date or realization period of greater than one year, and are recognized as "Other assets" in our Condensed Consolidated Balance Sheet. Notes and leases receivable represent notes and lease receivables other than receivables related to operating leases, and are recognized as "Customer financing assets" in our Condensed Consolidated Balance Sheet. The following table summarizes the balance by class of aerospace business related long-term receivables as of March 31, 2016 and December 31, 2015.



(Dollars in millions)	March 31, 2016		December 31, 2015
Long-term trade accounts receivable	$	934	$	903
Notes and leases receivable	343		451
Total long-term receivables	$	1,277	$	1,354

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 14% and 13% of our total long-term receivables were considered to bear high credit risk as of March 31, 2016 and December 31, 2015, respectively.

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 includes a reserve of $18 million as of March 31, 2016 and December 31, 2015, are individually evaluated for impairment. At March 31, 2016 and December 31, 2015, 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 not recoverable.

Shareowners' Equity and Noncontrolling Interest

3 Months Ended

Mar. 31, 2016

Stockholders' Equity Note [Abstract]

Shareowners' Equity and Noncontrolling Interest [Text Block]

Shareowners' Equity and Noncontrolling Interest

A summary of the changes in shareowners' equity and noncontrolling interest comprising total equity for the quarters ended March 31, 2016 and 2015 is provided below:



	Quarter Ended March 31,
	2016									2015
(Dollars in millions)	Share-owners' Equity			Non-controlling Interest			Total Equity			Share-owners' Equity			Non-controlling Interest			Total Equity
Equity, beginning of period	$	27,358		$	1,486		$	28,844		$	31,213		$	1,351		$	32,564
Comprehensive income for the period:
Net income	1,191			81			1,272			1,426			72			1,498
Total other comprehensive income (loss)	275			13			288			(550		)	(40		)	(590		)
Total comprehensive income for the period	1,466			94			1,560			876			32			908
Common Stock issued under employee plans	51						51			125						125
Common Stock repurchased	—						—			(3,000		)				(3,000		)
Dividends on Common Stock	(509		)				(509		)	(553		)				(553		)
Dividends on ESOP Common Stock	(18		)				(18		)	(19		)				(19		)
Dividends attributable to noncontrolling interest				(51		)	(51		)				(55		)	(55		)
(Purchase) sale of subsidiary shares from noncontrolling interest	—			(1		)	(1		)	11			14			25
Acquisition of noncontrolling interest				34			34						172			172
Disposition of noncontrolling interest				—			—						(3		)	(3		)
Other	5			(12		)	(7		)	(3		)	6			3
Equity, end of period	$	28,353		$	1,550		$	29,903		$	28,650		$	1,517		$	30,167

On March 13, 2015, we entered into accelerated share repurchase (ASR) agreements to repurchase an aggregate of $2.65 billion of our common stock. Under the terms of the ASR agreements, we made the aggregate payments and received an initial delivery of 18.6 million shares of common stock, representing approximately 85% of the shares expected to be repurchased. On July 31, 2015, the shares associated with the remaining portion of the aggregate purchase were settled upon final delivery of approximately 4.2 million additional shares of common stock.

On November 11, 2015, we entered into ASR agreements to repurchase an aggregate of $6 billion of our common stock utilizing the net after-tax proceeds from the sale of Sikorsky. The ASR agreements provide for the repurchase of our common stock based on the average of the daily volume-weighted average prices of our common stock during the term of such ASR agreement, less a discount and subject to adjustments pursuant to the terms and conditions of the ASR agreement. Under the terms of the ASR agreements, we made the aggregate payments and received an initial delivery of approximately 51.9 million shares of our common stock, representing approximately 85% of the shares expected to be repurchased. The shares associated with the remaining portion of the aggregate purchase price are to be settled over six tranches. Upon settlement of each tranche, we may be entitled to receive additional shares of our common stock or, under certain limited circumstances, be required to deliver shares or make additional payments to the counterparties, at our election.

On January 19, 2016, the shares associated with the remaining portion of the first tranche of the aggregate purchase were settled upon final delivery of approximately 2.1 million shares of common stock. The final settlement of the transactions under the remaining five tranches is expected to occur no later than the third quarter of 2016.

A summary of the changes in each component of accumulated other comprehensive income (loss), net of tax for the quarters ended March 31, 2016 and 2015 is provided below:



(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
Quarter Ended March 31, 2016
Balance at December 31, 2015	$	(2,438	)	$	(5,135	)	$	293		$	(339	)	$	(7,619	)
Other comprehensive income (loss) before reclassifications, net	26			(17		)	38			117			164
Amounts reclassified, pretax	1			126			(27		)	62			162
Tax (benefit) expense reclassified	—			(46		)	12			(17		)	(51		)
Balance at March 31, 2016	$	(2,411	)	$	(5,072	)	$	316		$	(177	)	$	(7,344	)



(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
Quarter Ended March 31, 2015
Balance at December 31, 2014	$	(1,051	)	$	(5,709	)	$	308		$	(209	)	$	(6,661	)
Other comprehensive (loss) income before reclassifications, net	(665		)	35			54			(132		)	(708		)
Amounts reclassified, pretax	(2		)	217			(28		)	57			244
Tax (benefit) expense reclassified	—			(80		)	10			(16		)	(86		)
Balance at March 31, 2015	$	(1,718	)	$	(5,537	)	$	344		$	(300	)	$	(7,211	)

Amounts reclassified related to our defined benefit pension and postretirement plans include amortization of prior service costs and transition obligations, 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.

Changes in noncontrolling interests that do not result in a change of control, and where there is a difference between fair value and carrying value, are accounted for as equity transactions. There would be no pro-forma effect on Net income attributable to common shareowners for the quarter ended March 31, 2016 had the changes been recorded through net income. The pro-forma increase in Net income attributable to common shareowners would have been $11 million for the quarter ended March 31, 2015 had the changes been recorded through net income.

- Definition

The entire disclosure for shareholders' equity comprised of portions attributable to the parent entity and noncontrolling interest, including other comprehensive income. Includes, but is not limited to, balances of common stock, preferred stock, additional paid-in capital, other capital and retained earnings, accumulated balance for each classification of other comprehensive income and amount of comprehensive income.

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+ Details

Guarantees

3 Months Ended

Mar. 31, 2016

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 guarantees outstanding since December 31, 2015. The changes in the carrying amount of service and product warranties and product performance guarantees for the three months ended March 31, 2016 and 2015 are as follows:



(Dollars in millions)	2016			2015
Balance as of January 1	$	1,212		$	1,264
Warranties and performance guarantees issued	76			72
Settlements made	(62		)	(68		)
Other	10			(4		)
Balance as of March 31	$	1,236		$	1,264

The amounts above exclude service and product warranties and product performance guarantees related to Sikorsky of approximately $50 million as of March 31, 2015.

Contingent Liabilities	3 Months Ended
Contingent Liabilities	Mar. 31, 2016
Commitments and Contingencies Disclosure [Abstract]
Contingent Liabilities [Text Block]	Contingent Liabilities Summarized below are the matters previously described in Note 17 of the Notes to the Consolidated Financial Statements in our 2015 Annual Report, incorporated by reference in our 2015 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 regulatory authorities with jurisdiction over our foreign operations. As described in Note 1 to the Consolidated Financial Statements in our 2015 Annual Report, we have accrued for the costs of environmental remediation activities 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 2015 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 or of export 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, which recommend that certain contract prices should be reduced to comply with various government regulations, including because cost or pricing data we submitted in negotiation of the contract prices or cost accounting practices may not have conformed to government regulations, or that certain payments be delayed or withheld. Some of these audit reports involved substantial amounts. We have made voluntary refunds in those cases we believe appropriate, have settled some allegations and continue to litigate certain cases. 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. F100 Engine Litigation As previously disclosed, the United States Government sued us in 1999 in the United States District Court for the Southern District of Ohio (District Court), claiming that Pratt & Whitney violated the civil False Claims Act and common law. The claims relate to the “Fighter Engine Competition” between Pratt & Whitney's F100 engine and General Electric's F110 engine. The government alleged that it overpaid for F100 engines under contracts awarded by the U.S. Air Force in fiscal years 1985 through 1990 because Pratt & Whitney inflated its estimated costs for some purchased parts and withheld data that would have revealed the overstatements. At trial, which ended in April 2005, the government claimed Pratt & Whitney's liability to be approximately $624 million. On August 1, 2008, the trial court held that the Air Force had not suffered any actual damages because Pratt & Whitney had made significant price concessions after the alleged overstatements were made. However, the trial court judge found that Pratt & Whitney violated the False Claims Act due to inaccurate statements contained in its 1983 initial engine pricing proposal. In the absence of actual damages, the trial court awarded the government the maximum civil penalty of $7,090,000, or $10,000 for each of the 709 invoices Pratt & Whitney submitted in 1989 and later under the contracts. In September 2008, both the government and UTC appealed the decision to the United States Court of Appeals for the Sixth Circuit. In November 2010, the Sixth Circuit affirmed Pratt & Whitney's liability for the civil penalty under the False Claims Act, but remanded the case to the trial court for further proceedings on the issues of False Claims Act damages and common law liability and damages. On June 18, 2012, the trial court found that Pratt & Whitney had breached obligations imposed by common law based on the same conduct with respect to which the court previously found liability under the False Claims Act. Under the common law claims, the U.S. Air Force seeks damages for events occurring before March 3, 1989, which are not recoverable under the False Claims Act. On June 17, 2013, the trial court awarded the government approximately $473 million in damages and penalties, plus prejudgment interest in an amount to be determined. On July 1, 2013, the trial court, after determining the amount of prejudgment interest, entered judgment in favor of the government in the amount of approximately $664 million. The trial court also awarded post-judgment interest on the full amount of the judgment to accrue from July 2, 2013, at the federal variable interest rate determined pursuant to 28 U.S.C. § 1961. The judgment included four different components: (1) common law damages of approximately $109 million; (2) prejudgment interest on common law damages of approximately $191 million; (3) False Claims Act treble damages of approximately $357 million; and (4) the civil penalty of approximately $7 million. The penalty component of the judgment previously was affirmed by the United States Court of Appeals in 2010. We filed an appeal from the judgment to the United States Court of Appeals for the Sixth Circuit on August 26, 2013. On April 6, 2015, the Sixth Circuit reversed the trial court’s decision and vacated the prior damages award, noting that the government did not prove any damages. The court rejected as a matter of law the evidence submitted by the government on damages and remanded the case to the District Court to decide in the first instance whether the government should have another opportunity to prove that it suffered any actual damages. On July 17, 2015, the case returned to the District Court, at which time we filed a motion for entry of judgment, seeking a judgment of zero actual damages. The government responded by filing a motion on August 28, 2015, in which it abandoned its claim for actual damages, but now seeks a judgment of approximately $85 million, representing (1) disgorgement of UTC’s alleged profits in fiscal year 1985, the first year of the multi-year engine competition, (2) prejudgment interest and (3) the approximately $7 million civil penalty. We believe that there is no basis for the government’s new profit disgorgement claim. Accordingly, we continue not to accrue a reserve beyond the civil penalty referenced above. Cost Accounting Standards Claim By letter dated December 24, 2013, a Divisional Administrative Contracting Officer of the United States Defense Contract Management Agency asserted a claim and demand for payment of approximately $211 million against Pratt & Whitney. 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 Armed Services Board of Contract Appeals. Pratt & Whitney’s appeal is still pending and we continue to believe the government’s claim is without merit. 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 $241 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 $132 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 have appealed this decision to the German Federal Tax Court (FTC). From 2008 to 2014, there was ongoing litigation between the German Government and another taxpayer in a case involving a German tax law relevant to our reorganization. In November 2014, the FTC ruled in favor of the German Government, and against the other taxpayer. In light of the FTC decision in the case involving the other taxpayer, we fully accrued for tax and interest in 2014. 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. In the meantime, we continue vigorously to litigate our matter. Asbestos Matters As previously reported, 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 $376 million and is recorded in Other long-term liabilities on our Condensed Consolidated Balance Sheet. This amount is on a pre-tax basis, not discounted, and excludes the Company’s defense fees (which will continue to be expensed by the Company as they are incurred). In addition, the Company has recorded a $106 million insurance recovery receivable for probable asbestos related recoveries. In calculating this amount, the Company used the estimated asbestos liability for pending and projected future claims and considered the amount of insurance available, allocation methodologies, solvency ratings, creditworthiness, and the contractual terms with each insurer. The amounts recorded by UTC for asbestos-related claims 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 average cost of resolution of each new claim, 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, reforms that may be made by state and federal courts, and the passage of state or federal tort reform legislation. Other. As described in Note 16 to the Consolidated Financial Statements in our 2015 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 have accrued for environmental investigatory, remediation, operating and maintenance costs, performance guarantees and other litigation and claims based on our estimate of the probable outcome of these matters. While it is possible that the outcome of these matters may differ from the recorded liability, we believe that resolution of these matters will not have a material impact on our competitive position, results of operations, cash flows or financial condition. 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 of these proceedings, 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.

Segment Financial Data

3 Months Ended

Mar. 31, 2016

Segment Reporting [Abstract]

Segment Financial Data [Text Block]

Segment Financial Data

Our operations are classified into four principal segments: Otis, UTC Climate, Controls & Security, Pratt & Whitney, and UTC 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.

As discussed in Note 2, on November 6, 2015, we completed the sale of Sikorsky to Lockheed Martin Corp. Amounts reported for 2015 in the table below exclude amounts attributable to Sikorsky, which have been reclassified to Discontinued Operations in the accompanying Condensed Consolidated Statement of Operations.

Results for the quarters ended March 31, 2016 and 2015 are as follows:



	Net Sales						Operating Profits						Operating Profit Margins
(Dollars in millions)	2016			2015			2016			2015			2016		2015
Otis	$	2,715		$	2,745		$	466		$	527		17.2	%	19.2	%
UTC Climate, Controls & Security	3,728			3,852			606			729			16.3	%	18.9	%
Pratt & Whitney	3,588			3,332			410			419			11.4	%	12.6	%
UTC Aerospace Systems	3,505			3,548			538			569			15.3	%	16.0	%
Total segments	13,536			13,477			2,020			2,244			14.9	%	16.7	%
Eliminations and other	(179		)	(157		)	16			48
General corporate expenses	—			—			(91		)	(110		)
Consolidated	$	13,357		$	13,320		$	1,945		$	2,182		14.6	%	16.4	%

See Note 8 to the Condensed Consolidated Financial Statements for a discussion of restructuring costs included in segment operating results.

- Definition

The entire disclosure for reporting segments including data and tables. Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments.

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+ Details

Accounting Pronouncements	3 Months Ended
Accounting Pronouncements	Mar. 31, 2016
New Accounting Pronouncements and Changes in Accounting Principles [Abstract]
New Accounting Pronouncements, Policy [Policy Text Block]	Accounting Pronouncements In May 2014, the FASB issued Accounting Standards Update (ASU) 2014-09, "Revenue from Contracts with Customers." In March 2016, the FASB issued ASU 2016-08, "Revenue from Contracts with Customers (Topic 606), Principal versus Agent Considerations (Reporting Revenue versus Net)." The ASU clarifies how an entity should identify the unit of accounting (i.e. the specified good or service) for the principal versus agent evaluation and how it should apply the control principle to certain types of arrangements. In April 2016, the FASB issued ASU 2016-10, "Revenue from Contracts with Customers (Topic 606), Identifying Performance Obligations and Licensing," which clarifies the guidance surrounding licensing arrangements and the identification of performance obligations. On August 12, 2015, the FASB issued ASU 2015-14, "Revenue from Contracts with Customers (Topic 606): Deferral of the Effective Date," which delays the effective date of ASU 2014-09 by one year. The new standard is effective for reporting periods beginning after December 15, 2017, and interim periods therein, using either of the following transition methods; (i) a full retrospective adoption reflecting the application of the standard in each prior reporting period, or (ii) a modified retrospective approach with the cumulative effect of initially adopting ASU 2014-09 recognized through retained earnings at the date of adoption. Early adoption is permitted for reporting periods beginning after December 15, 2016. We are in the process of evaluating the potential revenue implications of the standard change, which may result in changes to our revenue recognition practices; the elimination of the units-of-delivery method for certain U.S. Government programs; and the elimination of the completed contract method of accounting. 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. The provisions of this ASU are effective for years beginning after December 15, 2017. We are currently evaluating the impact of this ASU. In February 2016, the FASB issued ASU 2016-02, "Leases (Topic 842)." Under the amendments of this ASU, lessees will be required to recognize the following for all leases (with the exception of short-term leases) at the commencement date; (i) a lease liability, which is a lessee’s obligation to make lease payments arising from a lease, measured on a discounted basis; and (ii) a right-of-use asset, which is an asset that represents the lessee’s right to use, or control the use of, a specified asset for the lease term. Lessor accounting is largely unchanged under the amendments of this ASU. The provisions of this ASU are effective for years beginning after December 15, 2018. We are currently evaluating the impact of this ASU. In March 2016, the FASB issued ASU 2016-07, "Investments - Equity Method and Joint Ventures (Topic 323): Simplifying the Transition to the Equity Method of Accounting." This ASU eliminates the requirement to apply the equity method of accounting retrospectively when a reporting entity obtains significant influence over a previously held investment. Instead, the equity method of accounting should be applied prospectively from the date significant influence is obtained. In addition, the ASU requires that an entity that has an available-for-sale equity security that becomes qualified for the equity method of accounting recognize through earnings the unrealized holding gain or loss in accumulated other comprehensive income at the date the investment becomes qualified for use of the equity method. The provisions of this ASU are effective for years beginning after December 15, 2016. We are currently evaluating the impact of this ASU. In March 2016, the FASB issued ASU 2016-09, "Compensation – Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting." This ASU is intended to simplify several aspects of the accounting for share-based payment transactions, including the income tax consequences, classification of awards as either equity or liabilities, and classification on the statement of cash flows. The provisions of this ASU are effective for years beginning after December 15, 2016. Early application is permitted. We are currently evaluating the impact of this ASU.

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

3 Months Ended

Mar. 31, 2016

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

Schedule of Variable Interest Entities [Table Text Block]

The carrying amounts and classification of assets and liabilities for IAE in our Condensed Consolidated Balance Sheet as of March 31, 2016 are as follows:



(Dollars in millions)
Current assets	$	2,161
Noncurrent assets	968
Total assets	$	3,129

Current liabilities	$	1,792
Noncurrent liabilities	1,182
Total liabilities	$	2,974

Schedule of Goodwill [Table Text Block]

Changes in our goodwill balances for the quarter ended March 31, 2016 were as follows:



(Dollars in millions)	Balance as of January 1, 2016		Goodwill Resulting from Business Combinations		Foreign Currency Translation and Other			Balance as of March 31, 2016
Otis	$	1,566	$	—	$	21		$	1,587
UTC Climate, Controls & Security	9,458		89		5			9,552
Pratt & Whitney	1,515		—		—			1,515
UTC Aerospace Systems	14,759		20		(28		)	14,751
Total Segments	27,298		109		(2		)	27,405
Eliminations and other	3		—		—			3
Total	$	27,301	$	109	$	(2	)	$	27,408

Intangible Assets Disclosure [Table Text Block]

Identifiable intangible assets are comprised of the following:



	March 31, 2016					December 31, 2015
(Dollars in millions)	Gross Amount		Accumulated Amortization			Gross Amount		Accumulated Amortization
Amortized:
Service portfolios	$	2,048	$	(1,371	)	$	1,977	$	(1,307	)
Patents and trademarks	367		(196		)	361		(189		)
IAE collaboration	3,436		(116		)	3,336		(86		)
Customer relationships and other	12,600		(3,136		)	12,430		(2,988		)
	18,451		(4,819		)	18,104		(4,570		)
Unamortized:
Trademarks and other	2,087		—			2,069		—
Total	$	20,538	$	(4,819	)	$	20,173	$	(4,570	)

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

The following is the expected amortization of intangible assets for the years 2016 through 2021, which reflects an increase in expected amortization expense due to the pattern of economic benefit on certain aerospace intangible assets.



(Dollars in millions)	Remaining 2016		2017		2018		2019		2020		2021
Amortization expense	$	538	$	736	$	764	$	759	$	757	$	797

- 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

Discontinued Operations (Tables)

3 Months Ended

Mar. 31, 2016

Discontinued Operations and Disposal Groups [Abstract]

Disposal Groups, Including Discontinued Operations [Table Text Block]

The following summarized financial information related to Sikorsky has been segregated from continuing operations and reported as Discontinued Operations:



	Quarter Ended March 31,
(Dollars in millions)	2016			2015
Discontinued Operations:
Net sales	$	—		$	1,266
Cost of sales	—			1,062
Research and development	—			38
Selling, general and administrative	—			87
Other income, net	—			(12		)
Income from operations	—			91
Gain on disposal	18			—
Income tax expense	(7		)	(28		)
Income from discontinued operations	$	11		$	63

- Definition

Tabular disclosure of information related to a disposal group. Includes, but is not limited to, a discontinued operation, disposal classified as held-for-sale or disposed of by means other than sale or disposal of an individually significant component.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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+ Details

Earnings Per Share (Tables)

3 Months Ended

Mar. 31, 2016

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)	2016		2015
Net income attributable to common shareowners:
Net income from continuing operations	$	1,180	$	1,364
Net income from discontinued operations	11		62
Net income attributable to common shareowners	$	1,191	$	1,426
Basic weighted average number of shares outstanding	825.0		890.3
Stock awards and equity units	6.2		13.9
Diluted weighted average number of shares outstanding	831.2		904.2
Earnings Per Share of Common Stock - Basic:
Net income from continuing operations	$	1.43	$	1.53
Net income from discontinued operations	0.01		0.07
Net income attributable to common shareowners	1.44		1.60
Earnings Per Share of Common Stock - Diluted:
Net income from continuing operations	$	1.42	$	1.51
Net income from discontinued operations	0.01		0.07
Net income attributable to common shareowners	1.43		1.58

Inventories and Contracts in Progress (Tables)

3 Months Ended

Mar. 31, 2016

Inventory Disclosure [Abstract]

Schedule of Inventory, Current [Table Text Block]



(Dollars in millions)	March 31, 2016			December 31, 2015
Raw materials	$	2,218		$	2,037
Work-in-process	2,639			2,422
Finished goods	3,058			3,183
Contracts in progress	8,900			8,668
	16,815			16,310
Less:
Progress payments, secured by lien, on U.S. Government contracts	(148		)	(239		)
Billings on contracts in progress	(8,160		)	(7,936		)
	$	8,507		$	8,135

Borrowings and Lines of Credit (Tables)

3 Months Ended

Mar. 31, 2016

Debt Disclosure [Abstract]

Schedule of Short-Term Debt [Table Text Block]



(Dollars in millions)	March 31, 2016		December 31, 2015
Commercial paper	$	1,073	$	727
Other borrowings	160		199
Total short-term borrowings	$	1,233	$	926

Schedule of Long-term Debt [Table Text Block]

Long-term debt consisted of the following:



(Dollars in millions)	March 31, 2016		December 31, 2015
5.375% notes due 2017 ¹	$	1,000	$	1,000
1.800% notes due 2017 ¹	1,500		1,500
EURIBOR plus 0.800% floating rate notes due 2018 (€750 million principal value) ²	837		—
1.778% junior subordinated notes due 2018	1,100		1,100
6.800% notes due 2018	99		99
6.125% notes due 2019 ¹	1,250		1,250
8.875% notes due 2019	271		271
4.500% notes due 2020 ¹	1,250		1,250
4.875% notes due 2020	171		171
1.125% notes due 2021 (€950 million principal value) ³	1,061		—
8.750% notes due 2021	250		250
3.100% notes due 2022 ¹	2,300		2,300
1.250% notes due 2023 (€750 million principal value) ³	837		817
1.875% notes due 2026 (€500 million principal value) ³	558		—
7.100% notes due 2027	141		141
6.700% notes due 2028	400		400
7.500% notes due 2029 ¹	550		550
5.400% notes due 2035 ¹	600		600
6.050% notes due 2036 ¹	600		600
6.800% notes due 2036	134		134
7.000% notes due 2038	159		159
6.125% notes due 2038 ¹	1,000		1,000
5.700% notes due 2040 ¹	1,000		1,000
4.500% notes due 2042 ¹	3,500		3,500
4.150% notes due 2045 ⁴	850		850
Project financing obligations	171		191
Other (including capitalized leases)	195		306
Total principal long-term debt	21,784		19,439
Other (fair market value adjustments and discounts)	34		60
Total long-term debt	21,818		19,499
Less: current portion	130		179
Long-term debt, net of current portion	$	21,688	$	19,320


2	These notes bear interest at the three-month EURIBOR rate plus 0.800%, established quarterly. The interest rate in effect at March 31, 2016 was 0.605%. 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.

- 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

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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-Subparagraph (SX 210.5-02.22)
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+ Details

Employee Benefit Plans (Tables)

3 Months Ended

Mar. 31, 2016

Defined Pension, Defined Contribution and Other Postretirement Benefit Plans [Abstract]

Schedule of Defined Benefit Plans Disclosures [Table Text Block]

Contributions to our plans were as follows:



	Quarter Ended March 31,
(Dollars in millions)	2016		2015
Defined benefit plans	$	75	$	45
Defined contribution plans	78		96

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)	2016			2015			2016			2015
Service cost	$	94		$	125		$	1		$	1
Interest cost	302			351			8			8
Expected return on plan assets	(556		)	(569		)	—			—
Amortization	(8		)	(3		)	—			—
Recognized actuarial net loss (gain)	135			221			(1		)	(1		)
Net settlement and curtailment loss	12			6			—			—
Total net periodic benefit (income) cost	$	(21	)	$	131		$	8		$	8

Restructuring and Other Costs (Tables)

3 Months Ended

Mar. 31, 2016

Restructuring and Related Activities [Abstract]

Schedule of Restructuring and Related Costs [Table Text Block]

We recorded charges in the segments as follows:



(Dollars in millions)
Otis	$	15
UTC Climate, Controls & Security	28
Pratt & Whitney	5
UTC Aerospace Systems	13
Eliminations and other	1
Total	$	62

Restructuring charges incurred during the quarter ended March 31, 2016 primarily relate to actions initiated during 2016 and 2015, and were recorded as follows:



(Dollars in millions)
Cost of sales	$	31
Selling, general and administrative	31
Total	$	62

The following table summarizes expected, incurred and remaining costs for the 2016 restructuring actions by segment:



(Dollars in millions)	Expected Costs		Costs Incurred Quarter Ended March 31, 2016			Remaining Costs at March 31, 2016
Otis	$	14	$	(10	)	$	4
UTC Climate, Controls & Security	21		(13		)	8
UTC Aerospace Systems	73		(5		)	68
Total	$	108	$	(28	)	$	80

The following table summarizes expected, incurred and remaining costs for the 2015 restructuring actions by segment:



(Dollars in millions)	Expected Costs		Costs Incurred in 2015			Costs Incurred Quarter Ended March 31, 2016			Remaining Costs at March 31, 2016
Otis	$	54	$	(35	)	$	(5	)	$	14
UTC Climate, Controls & Security	207		(83		)	(14		)	110
Pratt & Whitney	100		(82		)	(1		)	17
UTC Aerospace Systems	144		(105		)	(8		)	31
Eliminations and other	22		(21		)	(1		)	—
Total	$	527	$	(326	)	$	(29	)	$	172

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

The following table summarizes the accrual balance and utilization for the 2016 restructuring actions:



(Dollars in millions)	Total
Net pre-tax restructuring costs	$	28
Utilization and foreign exchange	(3		)
Balance at March 31, 2016	$	25

The following table summarizes the accrual balances and utilization by cost type for the 2015 restructuring actions:



(Dollars in millions)	Severance			Facility Exit, Lease Termination and Other Costs			Total
Restructuring accruals at January 1, 2016	$	183		$	23		$	206
Net pre-tax restructuring costs	21			8			29
Utilization and foreign exchange	(63		)	(8		)	(71		)
Balance at March 31, 2016	$	141		$	23		$	164

Financial Instruments (Tables)

3 Months Ended

Mar. 31, 2016

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 of derivative instruments as of March 31, 2016 and December 31, 2015 which consist solely of foreign exchange contracts:



	Asset Derivatives				Liability Derivatives
(Dollars in millions)	March 31, 2016		December 31, 2015		March 31, 2016		December 31, 2015
Derivatives designated as hedging instruments	$	26	$	4	$	232	$	428
Derivatives not designated as hedging instruments	70		97		79		105

Reclassification out of Accumulated Other Comprehensive Income [Member]

Derivative Instruments, Gain (Loss) [Line Items]

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

The amount of gains and losses related to the Company's derivative financial instruments was as follows:



	Quarter Ended March 31,
(Dollars in millions)	2016		2015
Gain (loss) recorded in Accumulated other comprehensive loss	$	159	$	(184	)
Loss reclassified from Accumulated other comprehensive loss into Product sales (effective portion)	62		57

Other Income [Member]

Derivative Instruments, Gain (Loss) [Line Items]

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

The effect on the Condensed Consolidated Statement of Operations of foreign exchange contracts not designated as hedging instruments was as follows:



	Quarter Ended March 31,
(Dollars in millions)	2016		2015
Gain recognized in Other income, net	$	15	$	18

Fair Value Measurements (Tables)

3 Months Ended

Mar. 31, 2016

Fair Value Disclosures [Abstract]

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



March 31, 2016 (Dollars in millions)	Total			Level 1		Level 2			Level 3
Recurring fair value measurements:
Available-for-sale securities	$	1,083		$	1,083	$	—		$	—
Derivative assets	96			—		96			—
Derivative liabilities	(311		)	—		(311		)	—



December 31, 2015 (Dollars in millions)	Total			Level 1		Level 2			Level 3
Recurring fair value measurements:
Available-for-sale securities	$	951		$	951	$	—		$	—
Derivative assets	101			—		101			—
Derivative liabilities	(533		)	—		(533		)	—

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

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 as of March 31, 2016:



(Dollars in millions)	Total			Level 1		Level 2			Level 3
Long-term receivables	$	122		$	—	$	122		$	—
Customer financing notes receivable	433			—		433			—
Short-term borrowings	(1,233		)	—		(1,073		)	(160		)
Long-term debt (excluding capitalized leases)	(24,219		)	—		(23,961		)	(258		)
Long-term liabilities	(428		)	—		(428		)	—



	March 31, 2016						December 31, 2015
(Dollars in millions)	Carrying Amount			Fair Value			Carrying Amount			Fair Value
Long-term receivables	$	129		$	122		$	122		$	107
Customer financing notes receivable	456			433			403			403
Short-term borrowings	(1,233		)	(1,233		)	(926		)	(926		)
Long-term debt (excluding capitalized leases)	(21,795		)	(24,219		)	(19,476		)	(21,198		)
Long-term liabilities	(429		)	(428		)	(458		)	(419		)

- 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, 2016

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, 2016 and December 31, 2015.



(Dollars in millions)	March 31, 2016		December 31, 2015
Long-term trade accounts receivable	$	934	$	903
Notes and leases receivable	343		451
Total long-term receivables	$	1,277	$	1,354

Shareowners' Equity and Noncontrolling Interest (Tables)

3 Months Ended

Mar. 31, 2016

Stockholders' Equity Note [Abstract]

Schedule of Stockholders Equity [Table Text Block]

A summary of the changes in shareowners' equity and noncontrolling interest comprising total equity for the quarters ended March 31, 2016 and 2015 is provided below:



	Quarter Ended March 31,
	2016									2015
(Dollars in millions)	Share-owners' Equity			Non-controlling Interest			Total Equity			Share-owners' Equity			Non-controlling Interest			Total Equity
Equity, beginning of period	$	27,358		$	1,486		$	28,844		$	31,213		$	1,351		$	32,564
Comprehensive income for the period:
Net income	1,191			81			1,272			1,426			72			1,498
Total other comprehensive income (loss)	275			13			288			(550		)	(40		)	(590		)
Total comprehensive income for the period	1,466			94			1,560			876			32			908
Common Stock issued under employee plans	51						51			125						125
Common Stock repurchased	—						—			(3,000		)				(3,000		)
Dividends on Common Stock	(509		)				(509		)	(553		)				(553		)
Dividends on ESOP Common Stock	(18		)				(18		)	(19		)				(19		)
Dividends attributable to noncontrolling interest				(51		)	(51		)				(55		)	(55		)
(Purchase) sale of subsidiary shares from noncontrolling interest	—			(1		)	(1		)	11			14			25
Acquisition of noncontrolling interest				34			34						172			172
Disposition of noncontrolling interest				—			—						(3		)	(3		)
Other	5			(12		)	(7		)	(3		)	6			3
Equity, end of period	$	28,353		$	1,550		$	29,903		$	28,650		$	1,517		$	30,167

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

A summary of the changes in each component of accumulated other comprehensive income (loss), net of tax for the quarters ended March 31, 2016 and 2015 is provided below:



(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
Quarter Ended March 31, 2016
Balance at December 31, 2015	$	(2,438	)	$	(5,135	)	$	293		$	(339	)	$	(7,619	)
Other comprehensive income (loss) before reclassifications, net	26			(17		)	38			117			164
Amounts reclassified, pretax	1			126			(27		)	62			162
Tax (benefit) expense reclassified	—			(46		)	12			(17		)	(51		)
Balance at March 31, 2016	$	(2,411	)	$	(5,072	)	$	316		$	(177	)	$	(7,344	)



(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
Quarter Ended March 31, 2015
Balance at December 31, 2014	$	(1,051	)	$	(5,709	)	$	308		$	(209	)	$	(6,661	)
Other comprehensive (loss) income before reclassifications, net	(665		)	35			54			(132		)	(708		)
Amounts reclassified, pretax	(2		)	217			(28		)	57			244
Tax (benefit) expense reclassified	—			(80		)	10			(16		)	(86		)
Balance at March 31, 2015	$	(1,718	)	$	(5,537	)	$	344		$	(300	)	$	(7,211	)

Guarantees (Tables)

3 Months Ended

Mar. 31, 2016

Service and Product Warranties and Product Performance Guarantees [Abstract]

Product Warranty Disclosure [Table Text Block]



(Dollars in millions)	2016			2015
Balance as of January 1	$	1,212		$	1,264
Warranties and performance guarantees issued	76			72
Settlements made	(62		)	(68		)
Other	10			(4		)
Balance as of March 31	$	1,236		$	1,264

Segment Financial Data (Tables)

3 Months Ended

Mar. 31, 2016

Segment Reporting [Abstract]

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



	Net Sales						Operating Profits						Operating Profit Margins
(Dollars in millions)	2016			2015			2016			2015			2016		2015
Otis	$	2,715		$	2,745		$	466		$	527		17.2	%	19.2	%
UTC Climate, Controls & Security	3,728			3,852			606			729			16.3	%	18.9	%
Pratt & Whitney	3,588			3,332			410			419			11.4	%	12.6	%
UTC Aerospace Systems	3,505			3,548			538			569			15.3	%	16.0	%
Total segments	13,536			13,477			2,020			2,244			14.9	%	16.7	%
Eliminations and other	(179		)	(157		)	16			48
General corporate expenses	—			—			(91		)	(110		)
Consolidated	$	13,357		$	13,320		$	1,945		$	2,182		14.6	%	16.4	%

Acquisitions, Dispositions, Goodwill and Other Intangible Assets (General Information) (Details) $ in Millions	3 Months Ended
	Mar. 31, 2016 USD ($)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net [Abstract]
Acquisition Cost Of Acquired Entities and Interest in Affiliates	$ 79

Acquisitions, Dispositions, Goodwill and Other Intangible Assets (IAE Collaboration) (Details)	3 Months Ended
	Mar. 31, 2016
IAE Collaboration [Member]
Variable Interest Entity [Line Items]
Variable Interest Entity, Qualitative or Quantitative Information, Ownership Percentage	61.00%
International Aero Engines AG [Member]
Variable Interest Entity [Line Items]
Variable Interest Entity, Qualitative or Quantitative Information, Ownership Percentage	49.50%

Acquisitions, Dispositions, Goodwill and Other Intangible Assets (Variable Interest Entity) (Details) $ in Millions	Mar. 31, 2016 USD ($)
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net [Abstract]
Current Assets	$ 2,161
Noncurrent Assets	968
Total Assets	3,129
Current Liabilities	1,792
Noncurrent Liabilities	1,182
Total Liabilities	$ 2,974

Acquisition, Dispositions, Goodwill and Other Intangible Assets (Goodwill) (Details) $ in Millions	3 Months Ended
	Mar. 31, 2016 USD ($)
Goodwill [Line Items]
Goodwill - Beginning Balance	$ 27,301
Goodwill Resulting from Business Combinations	109
Goodwill - Foreign Currency Translation and Other	(2)
Goodwill - Ending Balance	27,408
Otis [Member]
Goodwill [Line Items]
Goodwill - Beginning Balance	1,566
Goodwill Resulting from Business Combinations	0
Goodwill - Foreign Currency Translation and Other	21
Goodwill - Ending Balance	1,587
UTC Climate, Controls & Security [Member]
Goodwill [Line Items]
Goodwill - Beginning Balance	9,458
Goodwill Resulting from Business Combinations	89
Goodwill - Foreign Currency Translation and Other	5
Goodwill - Ending Balance	9,552
Pratt & Whitney [Member]
Goodwill [Line Items]
Goodwill - Beginning Balance	1,515
Goodwill Resulting from Business Combinations	0
Goodwill - Foreign Currency Translation and Other	0
Goodwill - Ending Balance	1,515
UTC Aerospace Systems [Member]
Goodwill [Line Items]
Goodwill - Beginning Balance	14,759
Goodwill Resulting from Business Combinations	20
Goodwill - Foreign Currency Translation and Other	(28)
Goodwill - Ending Balance	14,751
Total Segments [Member]
Goodwill [Line Items]
Goodwill - Beginning Balance	27,298
Goodwill Resulting from Business Combinations	109
Goodwill - Foreign Currency Translation and Other	(2)
Goodwill - Ending Balance	27,405
Eliminations and other [Member]
Goodwill [Line Items]
Goodwill - Beginning Balance	3
Goodwill Resulting from Business Combinations	0
Goodwill - Foreign Currency Translation and Other	0
Goodwill - Ending Balance	$ 3

Acquisitions, Dispositions, Goodwill and Other Intangible Assets (Intangible Assets) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015
Finite-Lived Intangible Assets [Line Items]
Gross Amount	$ 18,451		$ 18,104
Accumulated Amortization	4,819		4,570
Unamortized: Trademarks and Other	2,087		2,069
Total Intangible Assets Gross Excluding Goodwill	20,538		20,173
Amortization of Intangible Assets	187	$ 179
Service portfolios [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Amount	2,048		1,977
Accumulated Amortization	1,371		1,307
Patents and trademarks [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Amount	367		361
Accumulated Amortization	196		189
IAE collaboration [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Amount	3,436		3,336
Accumulated Amortization	116		86
Customer relationships and other [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Amount	12,600		12,430
Accumulated Amortization	$ 3,136		$ 2,988

Acquisitions, Dispositions, Goodwill and Other Intangible Assets (Amortization Expense) (Details) $ in Millions	Mar. 31, 2016 USD ($)
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net [Abstract]
Amortization Expense, Remaining 2016	$ 538
Amortization Expense, 2017	736
Amortization Expense, 2018	764
Amortization Expense, 2019	759
Amortization Expense, 2020	757
Amortization Expense, 2021	$ 797

Discontinued Operations (Details) - USD ($) $ in Millions	3 Months Ended
Discontinued Operations (Details) - USD ($) $ in Millions	Mar. 31, 2016	Mar. 31, 2015
Discontinued Operations and Disposal Groups [Abstract]
Disposal Group, Including Discontinued Operation, Description and Timing of Disposal	On November 6, 2015, we completed the sale of Sikorsky to Lockheed Martin Corp.
Disposal Group, Including Discontinued Operation, Income Statement Disclosures [Abstract]
Disposal Group, Including Discontinued Operation, Revenue	$ 0	$ 1,266
Disposal Group, Including Discontinued Operation, Costs of Goods Sold	0	1,062
Disposal Group, Including Discontinued Operation, Research and Development Expense	0	38
Disposal Group, Including Discontinued Operation, General and Administrative Expense	0	87
Disposal Group, Including Discontinued Operation, Other Income	0	12
Disposal Group, Including Discontinued Operation, Operating Income	0	91
Discontinued Operation, Gain (Loss) on Disposal of Discontinued Operation, Net of Tax [Abstract]
Discontinued Operation, Gain from Disposal of Discontinued Operation, before Income Tax	18	0
Discontinued Operation, Tax Effect of Discontinued Operation	7	28
Net Cash Provided by (Used in) Discontinued Operations [Abstract]
Net cash outflows from discontinued operations	(2,227)	(336)
Income from discontinued operations	$ 11	$ 63

Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Net income attributable to common shareowners:
Net income from continuing operations	$ 1,180	$ 1,364
Net income from discontinued operations	11	62
Net income attributable to common shareowners	$ 1,191	$ 1,426
Basic weighted average number of shares outstanding	825,000,000	890,300,000.0
Stock awards and equity units	6,200,000	13,900,000.0
Diluted weighted average number of shares outstanding	831,200,000.0	904,200,000.0
Earnings Per Share of Common Stock - Basic:
Net income from continuing operations	$ 1.43	$ 1.53
Net income from discontinued operations	0.01	0.07
Net income attributable to common shareowners	1.44	1.60
Earnings Per Share of Common Stock - Diluted:
Net income from continuing operations	1.42	1.51
Net income from discontinued operations	0.01	0.07
Net income attributable to common shareowners	$ 1.43	$ 1.58
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	16,400,000	400,000

Inventories and Contracts in Progress (Details) - USD ($) $ in Millions	Mar. 31, 2016	Dec. 31, 2015
Inventory Disclosure [Abstract]
Raw materials	$ 2,218	$ 2,037
Work-in-process	2,639	2,422
Finished goods	3,058	3,183
Contracts in progress	8,900	8,668
Inventory before payments and billings	16,815	16,310
Progress payments, secured by lien, on U.S. Government contracts	148	239
Billings on contracts in progress	8,160	7,936
Inventories and contracts in progress, net	8,507	8,135
UTC Aerospace Systems [Member]
Inventory [Line Items]
Other Inventory, Capitalized Costs, Gross	$ 151	$ 152

Borrowings and Lines of Credit (Short-Term Borrowings) (Details) - USD ($) $ in Millions	Mar. 31, 2016	Dec. 31, 2015
Debt Disclosure [Abstract]
Commercial paper	$ 1,073	$ 727
Other borrowings	160	199
Total short-term borrowings	$ 1,233	$ 926

Borrowing and Lines of Credit (Narrative) (Details)	3 Months Ended
Borrowing and Lines of Credit (Narrative) (Details)	Mar. 31, 2016 USD ($)
Line of Credit Facility [Line Items]
Aggregate Line of Credit Facility Maximum Borrowing Capacity	$ 4,350,000,000
Maximum Commercial Paper Borrowing Authority	4,350,000,000
Revolving Credit Agreement [Member]
Line of Credit Facility [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity	2,200,000,000
Line of Credit Facility, Amount Outstanding	$ 0
Line of Credit Facility, Expiration Date	May 23, 2019
Multicurrency Revolving Credit Agreement [Member]
Line of Credit Facility [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity	$ 2,150,000,000
Line of Credit Facility, Amount Outstanding	$ 0
Line of Credit Facility, Expiration Date	May 23, 2019

- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

+ References + Details

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

3 Months Ended

Mar. 31, 2016

Dec. 31, 2015

Borrowings and Lines of Credit Borrowings and lines of Credit (Current Year Actions) (Details) € in Millions	3 Months Ended
	Mar. 31, 2016 EUR (€)
Notes 1.125% Due 2021 [Member]
Debt Instrument [Line Items]
Proceeds from Issuance of Debt	€ 950
Debt Instrument, Issuance Date	Feb. 22, 2016
EURIBOR plus 0.800% floating rate notes due 2018 [Member]
Debt Instrument [Line Items]
Proceeds from Issuance of Debt	€ 750
Debt Instrument, Issuance Date	Feb. 22, 2016
Notes 1.875% Due 2026 [Member]
Debt Instrument [Line Items]
Proceeds from Issuance of Debt	€ 500
Debt Instrument, Issuance Date	Feb. 22, 2016

Income Taxes (Details) $ in Millions	Mar. 31, 2016 USD ($)
Minimum [Member]
Significant Change In Unrecognized Tax Benefits Is Reasonably Possible [Line Items]
Increase in Unrecognized Tax Benefits is Reasonably Possible, Estimated Range of Change	$ 60
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	$ 460

Employee Benefit Plans (Details) - USD ($) $ in Millions	3 Months Ended
Employee Benefit Plans (Details) - USD ($) $ in Millions	Mar. 31, 2016	Mar. 31, 2015
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plans	$ 75	$ 45
Defined Contribution Plans	$ 78	96
Defined Benefit Plan, Discount Rate Used to Measure Service Cost	3.90%
Defined Benefit Plan, Discount Rate Used to Measure Interest Costs	3.50%
Defined Benefit Plan, Discount Rate, Previous Method	4.10%
Change in net periodic benefit cost due to change in accounting estimate	$ (215)
Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Service Cost	94	125
Interest Cost	302	351
Expected Return on Plan Assets	556	569
Amortization	(8)	(3)
Recognized actuarial net loss (gain)	(135)	(221)
Net settlement and curtailment loss	(12)	(6)
Net periodic benefit (income) cost	(21)	131
Other Postretirement Benefit Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Service Cost	1	1
Interest Cost	8	8
Expected Return on Plan Assets	0	0
Amortization	0	0
Recognized actuarial net loss (gain)	1	1
Net settlement and curtailment loss	0	0
Net periodic benefit (income) cost	$ 8	$ 8

Employee Benefit Plans Employee Benefit Plan - Discontinued Operations (Details) $ in Millions	3 Months Ended
	Mar. 31, 2015 USD ($)
Employee Benefit Plans - Discontinued Operations [Abstract]
Defined Benefit Plan, Net Periodic Benefit Cost, Discontinued Operations	$ 25

Restructuring and Other Costs (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Mar. 31, 2016	Dec. 31, 2015
Restructuring Cost and Reserve [Line Items]
Restructuring Expense	$ 62
Cost of Sales [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Expense	31
Selling, General and Administrative Expenses [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Expense	31
Current Year Actions [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Expense	28
Severance Costs	28
Restructuring and Related Cost, Expected Cost	108
Restructuring and Related Cost, Expected Cost Remaining	80
Current Year Actions [Member] \| Cost of Sales [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Expense	13
Current Year Actions [Member] \| Selling, General and Administrative Expenses [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Expense	15
Current Year Actions [Member] \| Severance [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve, Translation and Other Adjustment	3
Restructuring Reserve	25
Prior Year Actions [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Expense	29	$ 326
Severance Costs	21
Restructuring Reserve, Translation and Other Adjustment	71
Facility Exit, Lease Termination and Other Costs	8
Restructuring Reserve	164	206
Restructuring and Related Cost, Expected Cost	527
Restructuring and Related Cost, Expected Cost Remaining	172
Prior Year Actions [Member] \| Cost of Sales [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Expense	15
Prior Year Actions [Member] \| Selling, General and Administrative Expenses [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Expense	14
Prior Year Actions [Member] \| Severance [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve, Translation and Other Adjustment	63
Restructuring Reserve	141	183
Prior Year Actions [Member] \| Facility Exit, Lease Termination and Other Costs
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve, Translation and Other Adjustment	8
Restructuring Reserve	23	23
Two Years Prior Actions [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	83
Otis [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Expense	15
Otis [Member] \| Current Year Actions [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Expense	10
Restructuring and Related Cost, Expected Cost	14
Restructuring and Related Cost, Expected Cost Remaining	4
Otis [Member] \| Prior Year Actions [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Expense	5	35
Restructuring and Related Cost, Expected Cost	54
Restructuring and Related Cost, Expected Cost Remaining	14
UTC Climate, Controls & Security [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Expense	28
UTC Climate, Controls & Security [Member] \| Current Year Actions [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Expense	13
Restructuring and Related Cost, Expected Cost	21
Restructuring and Related Cost, Expected Cost Remaining	8
UTC Climate, Controls & Security [Member] \| Prior Year Actions [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Expense	14	83
Restructuring and Related Cost, Expected Cost	207
Restructuring and Related Cost, Expected Cost Remaining	110
Pratt & Whitney [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Expense	5
Pratt & Whitney [Member] \| Prior Year Actions [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Expense	1	82
Restructuring and Related Cost, Expected Cost	100
Restructuring and Related Cost, Expected Cost Remaining	17
UTC Aerospace Systems [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Expense	13
UTC Aerospace Systems [Member] \| Current Year Actions [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Expense	5
Restructuring and Related Cost, Expected Cost	73
Restructuring and Related Cost, Expected Cost Remaining	68
UTC Aerospace Systems [Member] \| Prior Year Actions [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Expense	8	105
Restructuring and Related Cost, Expected Cost	144
Restructuring and Related Cost, Expected Cost Remaining	31
Eliminations and other [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Expense	1
Eliminations and other [Member] \| Prior Year Actions [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Expense	1	$ 21
Restructuring and Related Cost, Expected Cost	22
Restructuring and Related Cost, Expected Cost Remaining	$ 0

Financial Instruments (Details) - USD ($) $ in Millions	3 Months Ended
Financial Instruments (Details) - USD ($) $ in Millions	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Four Quarter Rolling Average of Notional Amount of Foreign Exchange Contracts Hedging Foreign Currency Transactions	$ 16,200		$ 15,600
Description of Net Investment Hedge Activity	we have issued approximately €2.95 billion of Euro-denominated debt, which qualifies as a net investment hedge against our investments in European businesses under ASC 815, Derivatives and Hedging. As of March 31, 2016, the net investment hedge is deemed to be effective as defined under ASC 815.
Derivatives designated as hedging instruments, Asset Derivatives	$ 26		4
Derivatives not designated as hedging instruments, Asset Derivatives	70		97
Derivatives designated as hedging instruments, Liability Derivatives	232		428
Derivatives not designated as hedging instruments, Liability Derivatives	79		$ 105
Unrealized Gain (Loss) on Foreign Currency Derivatives, Net, before Tax	159	$ (184)
Loss reclassified from Accumulated other comprehensive loss (gain) into Product Sales (effective portion)	62	57
Foreign Currency Cash Flow Hedge Loss to be Reclassified During Next 12 Months	$ 137
Maximum Length of Time, Foreign Currency Cash Flow Hedge	6 years 7 months 22 days
Gain on Foreign Currency Derivative Instruments Not Designated as Hedging Instruments	$ 15	18
Proceeds from Derivative Instrument, Investing Activities	$ 42	$ 569

Fair Value Measurements (Fair Value Hierarchy Classification) (Details) - USD ($) $ in Millions	Mar. 31, 2016	Dec. 31, 2015
Estimate of Fair Value, Fair Value Disclosure [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-term receivables	$ 122	$ 107
Customer financing notes receivable	433	403
Short Term borrowings	1,233	926
Long-term debt (excluding capitalized leases)	24,219	21,198
Long-term liabilities	428	419
Portion at Other than Fair Value Measurement [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-term receivables	129	122
Customer financing notes receivable	456	403
Short Term borrowings	1,233	926
Long-term debt (excluding capitalized leases)	21,795	19,476
Long-term liabilities	429	458
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
Customer financing notes receivable	0
Short Term borrowings	0
Long-term debt (excluding capitalized leases)	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	122
Customer financing notes receivable	433
Short Term borrowings	1,073
Long-term debt (excluding capitalized leases)	23,961
Long-term liabilities	428
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
Customer financing notes receivable	0
Short Term borrowings	160
Long-term debt (excluding capitalized leases)	258
Long-term liabilities	0
Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	1,083	951
Derivative Assets	96	101
Derivative Liabilities	311	533
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	1,083	951
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	96	101
Derivative Liabilities	311	533
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, 2016	Dec. 31, 2015
Commercial Aerospace [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Fair Value Disclosure, Off-balance Sheet Risks, Amount, Liability	$ 14.0	$ 14.6

Long-Term Financing Receivables (Reserve and Additional Information) (Details) - USD ($) $ in Millions	Mar. 31, 2016	Dec. 31, 2015
Receivables [Abstract]
Long Term Receivables High Credit Risk Percentage	14.00%	13.00%
Financing Receivable Reserve For Credit Losses And Exposure	$ 18	$ 18

Long-Term Financing Receivables(Class and Credit Risk Information) (Details) - USD ($) $ in Millions	Mar. 31, 2016	Dec. 31, 2015
Financing Receivable, Recorded Investment [Line Items]
Total long-term receivables	$ 1,277	$ 1,354
Long-term trade accounts receivable [Member]
Financing Receivable, Recorded Investment [Line Items]
Total long-term receivables	934	903
Notes And leases receivable [Member]
Financing Receivable, Recorded Investment [Line Items]
Total long-term receivables	$ 343	$ 451

Shareowners' Equity and Noncontrolling Interest (Summary of Changes in Shareowners' Equity and Noncontrolling Interest) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Shareowners' Equity, beginning of period	$ 27,358	$ 31,213
Noncontrolling interest, beginning of period	1,486	1,351
Total Equity, beginning of period	28,844	32,564
Net income attributable to common shareowners	1,191	1,426
Net Income, Noncontrolling Interest	(81)	(72)
Net income, Total Equity	1,272	1,498
Total other comprehensive income (loss), Shareowners' Equity	275	(550)
Total other comprehensive income (loss), Noncontrolling Interest	(13)	40
Total other comprehensive income (loss), Total Equity	288	(590)
Total comprehensive income for the period, Shareowners' Equity	1,466	876
Total comprehensive income for the period, Noncontrolling Interest	(94)	(32)
Total comprehensive income for the period, Total Equity	1,560	908
Common Stock issued under employee plans	51	125
Common Stock Repurchased	0	3,000
Dividends on Common Stock	509	553
Dividends on ESOP Common Stock	18	19
Dividends attributable to noncontrolling interest	51	55
(Purchase) sale of subsidiary shares from noncontrolling interest	1	(25)
Acquisition of noncontrolling interest	34	172
Disposition of noncontrolling interest	0	3
Stockholders' Equity, Other	7	(3)
Shareowners' Equity, end of period	28,353	28,650
Noncontrolling interest, end of period	1,550	1,517
Total Equity, end of period	29,903	30,167
Shareowners' Equity [Member]
(Purchase) sale of subsidiary shares from noncontrolling interest	0	(11)
Stockholders' Equity, Other	(5)	3
Noncontrolling Interest [Member]
(Purchase) sale of subsidiary shares from noncontrolling interest	1	(14)
Stockholders' Equity, Other	$ 12	$ (6)

Shareowners' Equity and Noncontrolling Interest Shareowners' Equity and Noncontrolling Interest (Accelerated Stock Repurchase) (Details) $ in Millions	3 Months Ended
	Mar. 31, 2016 USD ($)
March 13, 2015 ASR [Member]
Accelerated Share Repurchases [Line Items]
ASR Aggregate Purchase Price	$ 2,650
Accelerated Share Repurchases, Cash or Stock Settlement	18600000
July 31, 2015 settlement of ASR [Member]
Accelerated Share Repurchases [Line Items]
Accelerated Share Repurchases, Cash or Stock Settlement	4200000
November 11, 2015 ASR [Member]
Accelerated Share Repurchases [Line Items]
ASR Aggregate Purchase Price	$ 6,000
Accelerated Share Repurchases, Cash or Stock Settlement	51900000
January 19, 2016 settlement of ASR [Member]
Accelerated Share Repurchases [Line Items]
Accelerated Share Repurchases, Cash or Stock Settlement	2100000

Guarantees (Details) - USD ($) $ in Millions	3 Months Ended
Guarantees (Details) - USD ($) $ in Millions	Mar. 31, 2016	Mar. 31, 2015
Product Warranty Liability [Line Items]
Warranties and performance guarantees issued	$ 76	$ 72
Balance as of January 1	1,212	1,264
Settlements made	62	68
Other	10	(4)
Balance as of March 31	1,236	$ 1,264
Discontinued Operations, Disposed of by Sale [Member]
Product Warranty Liability [Line Items]
Balance as of March 31	$ 50

Contingent Liabilities (Details)	3 Months Ended
Contingent Liabilities (Details)	Mar. 31, 2016 USD ($)
Department of Justice Lawsuit Against Pratt and Whitney [Member]
Loss Contingencies [Line Items]
Loss Contingency Lawsuit Filing Date	1999
Loss Contingency Allegations	As previously disclosed, the United States Government sued us in 1999 in the United States District Court for the Southern District of Ohio (District Court), claiming that Pratt & Whitney violated the civil False Claims Act and common law. The claims relate to the “Fighter Engine Competition” between Pratt & Whitney's F100 engine and General Electric's F110 engine. The government alleged that it overpaid for F100 engines under contracts awarded by the U.S. Air Force in fiscal years 1985 through 1990 because Pratt & Whitney inflated its estimated costs for some purchased parts and withheld data that would have revealed the overstatements. At trial, which ended in April 2005, the government claimed Pratt & Whitney's liability to be approximately $624 million.
Loss Contingency Actions Taken By Court Arbitrator Or Mediator	On August 1, 2008, the trial court held that the Air Force had not suffered any actual damages because Pratt & Whitney had made significant price concessions after the alleged overstatements were made. However, the trial court judge found that Pratt & Whitney violated the False Claims Act due to inaccurate statements contained in its 1983 initial engine pricing proposal. In the absence of actual damages, the trial court awarded the government the maximum civil penalty of $7,090,000, or $10,000 for each of the 709 invoices Pratt & Whitney submitted in 1989 and later under the contracts.
Loss Contingency Actions Taken By Plaintiff And Defendant	In September 2008, both the government and UTC appealed the decision to the United States Court of Appeals for the Sixth Circuit. In November 2010, the Sixth Circuit affirmed Pratt & Whitney's liability for the civil penalty under the False Claims Act, but remanded the case to the trial court for further proceedings on the issues of False Claims Act damages and common law liability and damages.
Loss Contingency, Additional Actions Taken by Court, Arbitrator or Mediator	On June 18, 2012, the trial court found that Pratt & Whitney had breached obligations imposed by common law based on the same conduct with respect to which the court previously found liability under the False Claims Act. Under the common law claims, the U.S. Air Force seeks damages for events occurring before March 3, 1989, which are not recoverable under the False Claims Act.
Loss Contingency, Settlement Agreement, Terms	On June 17, 2013, the trial court awarded the government approximately $473 million in damages and penalties, plus prejudgment interest in an amount to be determined. On July 1, 2013, the trial court, after determining the amount of prejudgment interest, entered judgment in favor of the government in the amount of approximately $664 million. The trial court also awarded post-judgment interest on the full amount of the judgment to accrue from July 2, 2013, at the federal variable interest rate determined pursuant to 28 U.S.C. § 1961. The judgment included four different components: (1) common law damages of approximately $109 million; (2) prejudgment interest on common law damages of approximately $191 million; (3) False Claims Act treble damages of approximately $357 million; and (4) the civil penalty of approximately $7 million. The penalty component of the judgment previously was affirmed by the United States Court of Appeals in 2010.
Loss Contingency Damages Sought	The government claimed Pratt & Whitney's liability to be approximately $624 million.
Loss Contingency, Period of Occurrence	fiscal years 1985 through 1990
Loss Contingency Actions Taken By Defendant	We filed an appeal from the judgment to the United States Court of Appeals for the Sixth Circuit on August 26, 2013. On April 6, 2015, the Sixth Circuit reversed the trial court’s decision and vacated the prior damages award, noting that the government did not prove any damages. The court rejected as a matter of law the evidence submitted by the government on damages and remanded the case to the trial court to decide in the first instance whether the government should have another opportunity to prove that it suffered any actual damages. On July 17, 2015, the case returned to the District Court, at which time we filed a motion for entry of judgment, seeking a judgment of zero actual damages. The government responded by filing a motion on August 28, 2015, in which it abandoned its claim for actual damages, but now seeks a judgment of approximately $85 million, representing (1) disgorgement of UTC’s alleged profits in fiscal year 1985, the first year of the multi-year engine competition, (2) prejudgment interest and (3) the civil penalty. We continue to believe that the government suffered no actual damages as a result of the inaccurate statements made in 1983. We also believe that there is no basis for the government’s new profit disgorgement claim. Accordingly, we continue not to accrue a reserve beyond the approximately $7 million civil penalty referenced above.
Loss Contingency Settlement Agreement Date	6/17/2013
Loss Contingency Damages Awarded Value, Not Including Interest	$ 473,000,000
Loss Contingency, Damages Awarded, Value	$ 664,000,000
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	By letter dated December 24, 2013, a Divisional Administrative Contracting Officer of the United States Defense Contract Management Agency asserted a claim and demand for payment of approximately $211 million against Pratt & Whitney. 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.
Loss Contingency Damages Sought	$211 million
Loss Contingency Actions Taken By Defendant	On March 18, 2014, Pratt & Whitney filed an appeal to the Armed Services Board of Contract Appeals. Pratt & Whitney’s appeal is still pending and we continue to believe the government’s claim is without merit.
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 $241 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 $132 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 have appealed this decision to the German Federal Tax Court (FTC).
Loss Contingency Actions Taken By Plaintiff And Defendant	From 2008 to 2014, there was ongoing litigation between the German Government and another taxpayer in a case involving a German tax law relevant to our reorganization. In November 2014, the FTC ruled in favor of the German Government, and against the other taxpayer. In light of the FTC decision in the case involving the other taxpayer, we fully accrued for tax and interest in 2014.
Loss Contingency Damages Sought	€215 million (approximately $241 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. In the meantime, we continue vigorously to litigate our matter.
Loss Contingency, Interest	€118 million (approximately $133 million)
Loss Contingency, Interest Paid	€275 million (approximately $300 million)
Asbestos Matter [Member]
Loss Contingencies [Line Items]
Loss Contingency Allegations	As previously reported, 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 $376 million and is recorded in Other long-term liabilities on our Condensed Consolidated Balance Sheet. This amount is on a pre-tax basis, not discounted, and excludes the Company’s defense fees (which will continue to be expensed by the Company as they are incurred). In addition, the Company has recorded a $106 million insurance recovery receivable for probable asbestos related recoveries. In calculating this amount, the Company used the estimated asbestos liability for pending and projected future claims and considered the amount of insurance available, allocation methodologies, solvency ratings, creditworthiness, and the contractual terms with each insurer. The amounts recorded by UTC for asbestos-related claims 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 average cost of resolution of each new claim, 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, reforms that may be made by state and federal courts, and the passage of state or federal tort reform legislation
Loss Contingency, Estimate of Possible Loss	$ 376,000,000
Loss Contingency, Receivable	$ 106,000,000

Segment Financial Data (Table) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Segment Reporting Information [Line Items]
Total net sales	$ 13,357	$ 13,320
Operating profit	$ 1,945	$ 2,182
Operating profit margin	14.60%	16.40%
Otis [Member]
Segment Reporting Information [Line Items]
Total net sales	$ 2,715	$ 2,745
Operating profit	$ 466	$ 527
Operating profit margin	17.20%	19.20%
UTC Climate, Controls & Security [Member]
Segment Reporting Information [Line Items]
Total net sales	$ 3,728	$ 3,852
Operating profit	$ 606	$ 729
Operating profit margin	16.30%	18.90%
Pratt & Whitney [Member]
Segment Reporting Information [Line Items]
Total net sales	$ 3,588	$ 3,332
Operating profit	$ 410	$ 419
Operating profit margin	11.40%	12.60%
UTC Aerospace Systems [Member]
Segment Reporting Information [Line Items]
Total net sales	$ 3,505	$ 3,548
Operating profit	$ 538	$ 569
Operating profit margin	15.30%	16.00%
Total Segments [Member]
Segment Reporting Information [Line Items]
Total net sales	$ 13,536	$ 13,477
Operating profit	$ 2,020	$ 2,244
Operating profit margin	14.90%	16.70%
Eliminations and other [Member]
Segment Reporting Information [Line Items]
Total net sales	$ (179)	$ (157)
Operating profit	16	48
General corporate expenses [Member]
Segment Reporting Information [Line Items]
Total net sales	0	0
Operating profit	$ (91)	$ (110)

Accounting Pronouncements (Details)	3 Months Ended
Accounting Pronouncements (Details)	Mar. 31, 2016
ASU 2014-09 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
New Accounting Pronouncement or Change in Accounting Principle, Description	In May 2014, the FASB issued Accounting Standards Update (ASU) 2014-09, "Revenue from Contracts with Customers."
ASU 2016-08 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
New Accounting Pronouncement or Change in Accounting Principle, Description	In March 2016, the FASB issued ASU 2016-08, "Revenue from Contracts with Customers (Topic 606), Principal versus Agent Considerations (Reporting Revenue versus Net)." The ASU clarifies how an entity should identify the unit of accounting (i.e. the specified good or service) for the principal versus agent evaluation and how it should apply the control principle to certain types of arrangements
ASU 2016-10 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
New Accounting Pronouncement or Change in Accounting Principle, Description	In April 2016, the FASB issued ASU 2016-10, "Revenue from Contracts with Customers (Topic 606), Identifying Performance Obligations and Licensing," which clarifies the guidance surrounding licensing arrangements and the identification of performance obligations.
ASU 2015-14 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
New Accounting Pronouncement or Change in Accounting Principle, Description	On August 12, 2015, the FASB issued ASU 2015-14, "Revenue from Contracts with Customers (Topic 606): Deferral of the Effective Date," which delays the effective date of ASU 2014-09 by one year. The new standard is effective for reporting periods beginning after December 15, 2017, and interim periods therein, using either of the following transition methods; (i) a full retrospective adoption reflecting the application of the standard in each prior reporting period, or (ii) a modified retrospective approach with the cumulative effect of initially adopting ASU 2014-09 recognized through retained earnings at the date of adoption. Early adoption is permitted for reporting periods beginning after December 15, 2016. We are in the process of evaluating the potential revenue implications of the standard change, which may result in changes to our revenue recognition practices; the elimination of the units-of-delivery method for certain U.S. Government programs; and the elimination of the completed contract method of accounting.
ASU 2016-01 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
New Accounting Pronouncement or Change in Accounting Principle, Description	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. The provisions of this ASU are effective for years beginning after December 15, 2017. We are currently evaluating the impact of this ASU.
ASU 2016-02 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
New Accounting Pronouncement or Change in Accounting Principle, Description	In February 2016, the FASB issued ASU 2016-02, "Leases (Topic 842)." Under the amendments of this ASU, lessees will be required to recognize the following for all leases (with the exception of short-term leases) at the commencement date; (i) a lease liability, which is a lessee’s obligation to make lease payments arising from a lease, measured on a discounted basis; and (ii) a right-of-use asset, which is an asset that represents the lessee’s right to use, or control the use of, a specified asset for the lease term. Lessor accounting is largely unchanged under the amendments of this ASU. The provisions of this ASU are effective for years beginning after December 15, 2018. We are currently evaluating the impact of this ASU.
ASU 2016-07 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
New Accounting Pronouncement or Change in Accounting Principle, Description	In March 2016, the FASB issued ASU 2016-07, "Investments - Equity Method and Joint Ventures (Topic 323): Simplifying the Transition to the Equity Method of Accounting." This ASU eliminates the requirement to apply the equity method of accounting retrospectively when a reporting entity obtains significant influence over a previously held investment. Instead, the equity method of accounting should be applied prospectively from the date significant influence is obtained. In addition, the ASU requires that an entity that has an available-for-sale equity security that becomes qualified for the equity method of accounting recognize through earnings the unrealized holding gain or loss in accumulated other comprehensive income at the date the investment becomes qualified for use of the equity method. The provisions of this ASU are effective for years beginning after December 15, 2016. We are currently evaluating the impact of this ASU.
ASU 2016-09 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
New Accounting Pronouncement or Change in Accounting Principle, Description	In March 2016, the FASB issued ASU 2016-09, "Compensation – Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting." This ASU is intended to simplify several aspects of the accounting for share-based payment transactions, including the income tax consequences, classification of awards as either equity or liabilities, and classification on the statement of cash flows. The provisions of this ASU are effective for years beginning after December 15, 2016. Early application is permitted. We are currently evaluating the impact of this ASU.