0000101829-26-000018 | 11-K | XBRL Viewer

PLAN TERMINATION	12 Months Ended
Dec. 31, 2025
EBP 039
EBP, Description of Plan [Line Items]
PLAN TERMINATION	PLAN TERMINATION Although it has not expressed any intent to do so, RTX has the right under the Plan to terminate the Plan subject to the provisions of ERISA. In the event of Plan termination, participants will become fully vested in their account balances.

TAX STATUS	12 Months Ended
TAX STATUS	Dec. 31, 2025
EBP 039
EBP, Tax Status [Line Items]
TAX STATUS	TAX STATUS The Puerto Rico Treasury Department determined and informed the Company by letter dated November 20, 2025 that the Plan meets the requirements of Section 1081.01 of the Puerto Rico Internal Revenue Code of 2011 (“Code”) and that the trust established thereunder (“Trust”) will be entitled to exemption from local income taxes under the Code. The Plan has been amended since receiving the determination letter. The Company believes that the current design and operation of the Plan are consistent with preservation of the qualification of the Plan and exemption of the Trust in the context of the applicable procedures of the Puerto Rico Treasury Department. Accounting principles generally accepted in the United States of America require plan management to evaluate tax positions taken by the Plan and recognize a tax liability if the organization has taken an uncertain position that more likely than not would not be sustained upon examination by The Puerto Rico Treasury Department. As of December 31, 2025 and 2024, the Company has analyzed the tax positions taken by the Plan and has concluded that there are no uncertain positions taken that would require recognition of a liability or disclosure in the financial statements. The Plan is subject to routine audits by taxing jurisdictions; however, there are currently no audits for any tax periods in progress. The Company believes it is no longer subject to income tax examinations for years prior to 2021.

FAIR VALUE OF INVESTMENTS - Schedule of Investments Carried at Fair Value (Details) - EBP 039 - USD ($)	Dec. 31, 2025	Dec. 31, 2024
EBP, Investment, Fair Value and NAV [Line Items]
Total	$ 163,563,000	$ 120,649,724
Level 1
EBP, Investment, Fair Value and NAV [Line Items]
Total	163,285,321	120,355,499
Level 2
EBP, Investment, Fair Value and NAV [Line Items]
Total	277,679	294,225
Level 3
EBP, Investment, Fair Value and NAV [Line Items]
Total	0	0
Short-term investments
EBP, Investment, Fair Value and NAV [Line Items]
Total	277,679	294,225
Short-term investments \| Level 1
EBP, Investment, Fair Value and NAV [Line Items]
Total	0	0
Short-term investments \| Level 2
EBP, Investment, Fair Value and NAV [Line Items]
Total	277,679	294,225
Short-term investments \| Level 3
EBP, Investment, Fair Value and NAV [Line Items]
Total	0	0
RTX common stock
EBP, Investment, Fair Value and NAV [Line Items]
Total	22,628,626	14,780,221
RTX common stock \| Level 1
EBP, Investment, Fair Value and NAV [Line Items]
Total	22,628,626	14,780,221
RTX common stock \| Level 2
EBP, Investment, Fair Value and NAV [Line Items]
Total	0	0
RTX common stock \| Level 3
EBP, Investment, Fair Value and NAV [Line Items]
Total	0	0
Mutual funds
EBP, Investment, Fair Value and NAV [Line Items]
Total	140,656,695	105,575,278
Mutual funds \| Level 1
EBP, Investment, Fair Value and NAV [Line Items]
Total	140,656,695	105,575,278
Mutual funds \| Level 2
EBP, Investment, Fair Value and NAV [Line Items]
Total	0	0
Mutual funds \| Level 3
EBP, Investment, Fair Value and NAV [Line Items]
Total	$ 0	$ 0

- Definition

Fair value of investment, excluding plan interest in master trust, held by employee stock purchase, saving, or similar plan (employee benefit plan (EBP)). Includes, but is not limited to, derivative, investment measured at net asset value per share as practical expedient, and insurance contract not meeting fully-benefit responsive investment criteria.

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FAIR VALUE OF INVESTMENTS - Narrative (Details) - EBP 039	12 Months Ended
	Dec. 31, 2025 $ / shares
EBP, Investment, Fair Value and NAV [Line Items]
NAV (in dollars per share)	$ 1.00
Maximum \| Highly Liquid Short-Term Investments
EBP, Investment, Fair Value and NAV [Line Items]
Percentage of invested amount to fund value	1.50%

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

+ Details

RECONCILIATION OF FINANCIAL STATEMENTS TO FORM 5500 - Reconciliation of Net Assets Available for Benefits (Details) - EBP 039 - USD ($)	Dec. 31, 2025	Dec. 31, 2024
EBP, Reconciliation of Financial Statement to Form 5500 [Line Items]
Net assets available for benefits per the financial statements	$ 171,212,281	$ 126,777,958
Less: Deemed distributions of participant loans	(359,086)	(202,405)
Net assets available for benefits per Form 5500	$ 170,853,195	$ 126,575,553

- Definition

Amount of asset less liability available to pay benefit of participant in employee stock purchase, saving, or similar plan (employee benefit plan (EBP)), including, but not limited to, aggregation of participants' individual account balances.

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RECONCILIATION OF FINANCIAL STATEMENTS TO FORM 5500 - Reconciliation of Benefits Paid (Details) - EBP 039	12 Months Ended
	Dec. 31, 2025 USD ($)
EBP, Reconciliation of Financial Statement to Form 5500 [Line Items]
Distributions to participants or beneficiaries per the financial statements	$ 7,122,453
Add: Deemed distributions of participant loans at December 31, 2025	359,086
Less: Deemed distributions of participant loans at December 31, 2024	(202,405)
Distributions to participants or beneficiaries per Form 5500	$ 7,279,134

SUMMARY OF ACCOUNTING PRINCIPLES (Policies) - EBP 039	12 Months Ended
SUMMARY OF ACCOUNTING PRINCIPLES (Policies) - EBP 039	Dec. 31, 2025
EBP, Accounting Policy [Line Items]
Basis of Accounting	Basis of Accounting. The financial statements of the Plan are prepared under the accrual method of accounting.
Investment Valuation and Income Recognition	Investment Valuation and Income Recognition. Plan investments are stated at fair value as determined by the Plan Trustee, typically by reference to published market data. See Note 3 for further discussion regarding the determination of the fair value of Plan investments. Purchases and sales of investments are recorded on a trade-date basis. Interest income is accrued when earned. Dividend income is recorded on the ex-dividend date. Net appreciation in the fair value of investments includes realized and unrealized gains and losses.
Notes Receivable from Participants	Notes Receivable from Participants. Notes receivable from participants are valued at their unpaid principal balance plus any accrued but unpaid interest. Delinquent loans are reclassified as distributions, which become taxable to the participant, based upon the terms of the Plan.
Plan Expenses	Plan Expenses. Most administrative expenses, such as Trustee, custodial, legal, audit, and recordkeeping fees, were paid directly by the Company in 2025. Other administrative expenses were paid from Plan assets or certain forfeited balances of participants' non-vested accounts during 2025. Investment management fees are included within Net appreciation in fair value of investments.
Payments of Benefits	Payments of Benefits. Benefit payments to participants or beneficiaries are recorded when paid.
Use of Estimates	Use of Estimates. The preparation of the Plan's financial statements, in conformity with accounting principles generally accepted in the United States of America (US GAAP), requires management to make estimates and assumptions that affect the reported amounts of net assets available for benefits at the dates of the financial statements, and changes therein during the reporting period and, when applicable, disclosures of contingent assets and liabilities at the dates of the financial statements. Actual results could differ from those estimates.
Risks and Uncertainties	Risks and Uncertainties. The Plan provides for various investment options in any combination of stocks, mutual funds, and other investment securities. Investment securities are exposed to various risks, such as interest rate, market, and credit risks. These risks can be adversely impacted by shifts in the market's perception of the issuers, changes in interest rates, and global economic conditions. Due to the level of risk associated with certain investment securities and the level of uncertainty related to changes in the value of investment securities, it is at least reasonably possible that changes in risks in the near term would materially affect participants' account balances and the amounts reported in the statements of net assets available for benefits.
Subsequent Events	Subsequent Events. In preparing the accompanying financial statements, the Plan evaluated events occurring from December 31, 2025 through the date the financial statements were issued and determined there were none to disclose.

Statements of Net Assets Available for Benefits - EBP 039 - USD ($)	Dec. 31, 2025	Dec. 31, 2024
Assets:
Investments, at fair value	$ 163,563,000	$ 120,649,724
Contributions receivable:
Participants'	255,068	170,299
Employer's	141,126	89,769
Notes receivable from participants	7,253,087	5,868,166
Net assets available for benefits	$ 171,212,281	$ 126,777,958

DESCRIPTION OF THE PLAN	12 Months Ended
DESCRIPTION OF THE PLAN	Dec. 31, 2025
EBP 039
EBP, Description of Plan [Line Items]
DESCRIPTION OF THE PLAN	DESCRIPTION OF THE PLAN General. The RTX Puerto Rico Savings Plan (the Plan) is a defined contribution savings plan sponsored by RTX Corporation (RTX, the Company, Employer, or the Plan Sponsor). It is subject to the provisions of the Employee Retirement Income Security Act of 1974 (ERISA), covering all eligible employees who reside or primarily work in Puerto Rico. The following description of the Plan provides only general information. Participants should refer to the Plan document for a complete description of the Plan's provisions. Trustee and Recordkeeper. Banco Popular de Puerto Rico (Trustee) is the Plan Trustee. State Street Bank and Trust is the Plan Custodian and holds all of the Plan assets. Alight Solutions LLC is the Plan Recordkeeper and performs participant account recordkeeping services. On November 3, 2025, the Plan Sponsor approved a transition of recordkeeping services from Alight Solutions LLC to Fidelity Workplace Services. The transition is currently expected to occur during 2027. Contributions and Vesting. Participants may elect to contribute up to the lesser of 40% of pre-tax eligible compensation, as defined, or $15,000. Participants may also make additional after-tax contributions of up to 10% of eligible compensation through payroll deductions, subject to statutory and Plan limits. Participants direct the investment of their contributions into various investment options offered by the Plan. As of December 31, 2025, the Plan offered seventeen investment options to participants: twelve target-date retirement funds, a Total Stock Market Index Fund, a Total International Stock Index Fund, a Total Bond Market Index Fund, a money market fund, and an employer stock fund (RTX Stock Fund). Participant contributions, plus actual earnings thereon, are fully vested at all times under the Plan. New participants are automatically enrolled at a pre-tax deferral rate of 6% of eligible compensation. The contribution rate will automatically increase by 1% each year thereafter until it reaches 10%. Participants may opt out of automatic enrollment at any time. Participants may also opt in or out of automatic contribution rate increases at any time. Automatic contributions are invested in an age appropriate target retirement fund. Company contributions, plus actual earnings thereon, become fully vested after two years of continuous service or earlier upon other events specified in the Plan. Generally, RTX matches 100% of the first 3%, and 33.3% thereafter, up to 6%, of eligible compensation, as defined in the Plan documents. Company and participant contributions are deposited into the investment options in accordance with the participants' elections. Participant Accounts. Each participant account is credited with (a) the participant contributions, (b) Company contributions, and (c) Plan earnings and losses reduced by expense allocations. The benefit to which a participant is entitled is the benefit that can be provided from the participant's vested account. Forfeited balances of terminated participants' non-vested Company contribution amounts are used to reduce the Company's contributions to the Plan and to pay Plan expenses. For the year ended December 31, 2025, amounts forfeited from non-vested accounts for the Plan totaled approximately $98,000, a total of $104,000 of forfeitures were used to fund RTX’s contributions. As of December 31, 2025 and 2024, the balance of forfeited non-vested accounts for the Plan was $36,000 and $103,000, respectively. Voting Rights. RTX common stock held in the RTX Stock Fund are voted by the Trustee at RTX shareowner meetings, in accordance with the confidential instructions of the participants whose accounts are invested in that fund. All shares of Company stock for which the Trustee receives voting instructions from participants to whose accounts the shares are allocated, are voted in accordance with those instructions. All RTX common stock for which the Trustee does not receive timely voting instructions are voted by the Trustee in accordance with the timely instructions it receives with respect to a plurality of the shares. Notes Receivable from Participants. Under the terms of the Plan, participants are allowed to borrow up to the lesser of 50% of their vested account balances or $50,000 (less the amount of the participant's highest outstanding loan balance in the preceding 12 month period), with a minimum loan amount of $1,000, and must repay their loan within five years. Participants may have two loans outstanding at a time. Loans are secured by the balance in the participant's account, and bear interest at the prime rate published in the Wall Street Journal plus 1%. At December 31, 2025 and 2024, the interest rates on the outstanding loans ranged from approximately 4.25% to 9.5%, and approximately 4.25% to 9.56%, respectively. Principal and interest are paid ratably through payroll deductions by active participants or through direct payment by inactive participants. Payment of Benefits. Generally, on termination of service of a participant, benefits may be left in the Plan, or paid to the participant in a lump sum or in installments. In the case of death of a participant, benefits may be paid to beneficiaries in a lump sum or in installments. Participants are also eligible for hardship withdrawals in accordance with the Plan document.

DESCRIPTION OF THE PLAN (Details) - EBP 039	12 Months Ended
DESCRIPTION OF THE PLAN (Details) - EBP 039	Dec. 31, 2025 USD ($) option loan	Dec. 31, 2024 USD ($)
EBP, Description of Plan [Line Items]
Maximum contribution as a percentage of pre-tax eligible compensation	40.00%
Maximum contribution amount based on pre-tax eligible compensation	$ 15,000
Maximum contribution as a percentage of after-tax eligible compensation	10.00%
Number of investment options \| option	17
Pre-tax automatic annual deferral rate increase	1.00%
Vesting period for employer contributions	2 years
Amounts forfeited from non-vested accounts	$ 98,000
Forfeitures used to fund RTX's contributions	104,000
Forfeited non-vested account balance	$ 36,000	$ 103,000
Maximum percentage to vested balance for notes receivable from participants	50.00%
Maximum borrowing amount for notes receivable from participants	$ 50,000
Period used for deduction from maximum borrowing amount for highest loan balance for notes receivable from participants	12 months
Minimum borrowing amount for notes receivable from participants	$ 1,000
Maximum borrowing term for notes receivable from participants	5 years
Maximum number of loans outstanding for notes receivable from participants \| loan	2
Basis spread on variable rate for notes receivable from participants	1.00%
Employer Matching Contribution for First 3%
EBP, Description of Plan [Line Items]
Employer contribution matching percentage	100.00%
Percentage of participant compensation matched	3.00%
Employer Matching Contribution up to 6%
EBP, Description of Plan [Line Items]
Employer contribution matching percentage	33.30%
Percentage of participant compensation matched	6.00%
Minimum
EBP, Description of Plan [Line Items]
Pre-tax automatic deferral rate	6.00%
Interest rate for notes receivable from participants	4.25%	4.25%
Maximum
EBP, Description of Plan [Line Items]
Pre-tax automatic deferral rate	10.00%
Interest rate for notes receivable from participants	9.50%	9.56%
Target-Date Retirement Funds
EBP, Description of Plan [Line Items]
Number of investment options \| option	12

FAIR VALUE OF INVESTMENTS (Tables)

12 Months Ended

Dec. 31, 2025

EBP 039

EBP, Investment, Fair Value and NAV [Line Items]

Schedule of Investments Carried at Fair Value

The following tables provide the investments carried at fair value measured on a recurring basis as of December 31, 2025 and 2024:


	December 31, 2025
	Level 1		Level 2		Level 3		Total
Short-term investments	$	—	$	277,679	$	—	$	277,679

RTX common stock	22,628,626		—		—		22,628,626
Mutual funds	140,656,695		—		—		140,656,695
Total	$	163,285,321	$	277,679	$	—	$	163,563,000

	December 31, 2024
	Level 1		Level 2		Level 3		Total
Short-term investments	$	—	$	294,225	$	—	$	294,225

RTX common stock	14,780,221		—		—		14,780,221
Mutual funds	105,575,278		—		—		105,575,278
Total	$	120,355,499	$	294,225	$	—	$	120,649,724

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

+ Details

- Definition

Tabular disclosure of fair value of investment held by employee stock purchase, saving, or similar plan (employee benefit plan (EBP)), including, but not limited to, fair value measured at net asset value per share as practical expedient (NAV).

+ References

+ Details

Schedule H, Line 4i - Schedule of Assets (Held at End of Year)

12 Months Ended

Dec. 31, 2025

EBP 039

EBP, Schedule of Asset Held for Investment [Line Items]

Schedule H, Line 4i - Schedule of Assets (Held at End of Year)

December 31, 2025

(a)

(b) Identity of issuer, borrower, lessor, or similar party

(d) Cost

(e) Current value

RTX Corporation

Common stock

22,628,626

State Street Global Advisors Trust Company State Street Short Term Investment Fund

Short-term Investment Fund

277,679

Vanguard Target Retirement 2020 Fund

Mutual Fund

1,027,430

Vanguard Target Retirement 2025 Fund

Mutual Fund

3,974,173

Vanguard Target Retirement 2030 Fund

Mutual Fund

8,011,558

Vanguard Target Retirement 2035 Fund

Mutual Fund

8,234,200

Vanguard Target Retirement 2040 Fund

Mutual Fund

16,781,046

Vanguard Target Retirement 2045 Fund

Mutual Fund

21,264,741

Vanguard Target Retirement 2050 Fund

Mutual Fund

20,872,734

Vanguard Target Retirement 2055 Fund

Mutual Fund

19,782,048

Vanguard Target Retirement 2060 Fund

Mutual Fund

6,079,747

Vanguard Target Retirement 2065 Fund

Mutual Fund

2,274,643

Vanguard Target Retirement 2070 Fund

Mutual Fund

491,468

Vanguard Target Retirement Income Fund

Mutual Fund

1,228,894

Vanguard Total Stock Market Index Fund

Mutual Fund

15,173,806

Vanguard Total International Stock Index Fund

Mutual Fund

3,043,447

Vanguard Total Bond Market Index Fund

Mutual Fund

1,820,571

Vanguard Treasury Money Market Fund

Mutual Fund

10,596,189

Plan Participants

Notes receivable from participants secured by participant balances, interest ranging from 4.25% to 9.5%, terms ranging from 1 year to 5 years

—

7,253,087

170,816,087


*			Indicates an identified person known to be a party-in-interest to the Plan.
**			Cost has been omitted as investment is participant directed.

RELATED-PARTY AND PARTY-IN-INTEREST TRANSACTIONS	12 Months Ended
RELATED-PARTY AND PARTY-IN-INTEREST TRANSACTIONS	Dec. 31, 2025
EBP 039
EBP, Related Party and Party-in-Interest Transactions [Line Items]
RELATED-PARTY AND PARTY-IN-INTEREST TRANSACTIONS	RELATED-PARTY AND PARTY-IN-INTEREST TRANSACTIONS The Plan holds common shares of RTX, the Plan sponsor, and these qualify as exempt party-in-interest transactions. The total value of the Plan's interest in the RTX Stock Fund was $22,628,626 and $14,780,221 at December 31, 2025 and 2024, respectively. During the year ended December 31, 2025, the Plan purchased shares of RTX common stock in the amount of $3,455,249, sold shares of RTX common stock in the amount of $4,068,849, and had net appreciation in the fair value of the RTX common stock in the amount of $8,428,239, including dividend income of $331,667. In addition, certain of the Plan’s investment options are managed by State Street Investment Management (formerly known as State Street Global Advisors), an affiliate of the Custodian. Transactions in such investments qualify as exempt party-in-interest transactions. Notes receivable from participants transactions also qualify as exempt party-in-interest transactions.

FAIR VALUE OF INVESTMENTS

12 Months Ended

Dec. 31, 2025

EBP 039

EBP, Investment, Fair Value and NAV [Line Items]

FAIR VALUE OF INVESTMENTS

The Fair Value Measurements and Disclosure Topic of the Financial Accounting Standards Board (FASB) Accounting Standards Codification (ASC) establishes a valuation hierarchy for disclosure of the inputs to the valuations used to measure fair value. Classification of a financial asset or liability within the hierarchy is determined based on the lowest level input that is significant to the fair value measurement. This hierarchy prioritizes the inputs into three broad levels:

Level 1 – quoted prices in active markets for identical assets or liabilities;

Level 2 – inputs other than quoted prices included within Level 1 that are observable for the asset or liability either directly or indirectly;

Level 3 – unobservable inputs based on our own assumptions used to measure assets and liabilities at fair value.

The following is a description of the valuation methodologies used for the Plan's investments measured at fair value, including the general classification of those investments:

Short-term Investments. Short-term investments represent investments held by the Plan in commingled institutional funds and are valued at the published net asset values (NAV) per unit as of the valuation date. The commingled institutional funds classified as short-term investments, known as short-term investment funds, transact daily without restriction in a manner similar to money market funds with an objective of maintaining a constant $1.00 NAV through investment in high-quality securities with short durations and are valued at the NAV per unit as of the valuation date. Although not traded on an active market, the NAV of the short term investment funds are observable.

RTX Stock Fund. The RTX Stock Fund is a unitized fund that invests primarily in shares of RTX common stock in addition to holding a small amount (generally less than 1.5% of the fund’s value) in highly liquid short-term investments, which provide readily available cash to fund participants’ distributions, loans, and investment exchanges. The value of the units credited to participants' RTX Stock Fund accounts reflects the fair value of the shares of RTX common stock as determined using the closing sales price on the valuation date plus the value of the cash position. Therefore, the unit value closely, but, because of the small cash position, not exactly, tracks the value of RTX common stock. At December 31, 2025 and 2024, the RTX Stock Fund was stated at fair value determined using the closing sales price of RTX common stock as of the valuation date plus the value of the cash position as of that date.

Mutual Funds. Shares held in mutual funds are stated at fair value using the published NAV on the last business day of each period presented. Mutual funds are traded daily without restriction.

The following tables provide the investments carried at fair value measured on a recurring basis as of December 31, 2025 and 2024:


	December 31, 2025
	Level 1		Level 2		Level 3		Total
Short-term investments	$	—	$	277,679	$	—	$	277,679

RTX common stock	22,628,626		—		—		22,628,626
Mutual funds	140,656,695		—		—		140,656,695
Total	$	163,285,321	$	277,679	$	—	$	163,563,000

	December 31, 2024
	Level 1		Level 2		Level 3		Total
Short-term investments	$	—	$	294,225	$	—	$	294,225

RTX common stock	14,780,221		—		—		14,780,221
Mutual funds	105,575,278		—		—		105,575,278
Total	$	120,355,499	$	294,225	$	—	$	120,649,724

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

+ Details

- Definition

The entire disclosure for fair value of investment held by employee stock purchase, saving, or similar plan (employee benefit plan (EBP)), including, but not limited to, fair value measured at net asset value per share as practical expedient (NAV).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482106/820-10-50-3

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482106/820-10-50-3

Reference 3: http://www.xbrl.org/2003/role/exampleRef
-Topic 962
-SubTopic 325
-Name Accounting Standards Codification
-Section 55
-Paragraph 17
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478873/962-325-55-17

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 6A
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482106/820-10-50-6A

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 6A
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482106/820-10-50-6A

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 6A
-Subparagraph (e)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482106/820-10-50-6A

Reference 7: http://www.xbrl.org/2003/role/disclosureRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 6A
-Subparagraph (f)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482106/820-10-50-6A

Reference 8: http://www.xbrl.org/2003/role/disclosureRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 6A
-Subparagraph (h)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482106/820-10-50-6A

Reference 9: http://www.xbrl.org/2003/role/disclosureRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (g)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482106/820-10-50-2

Reference 10: http://www.xbrl.org/2003/role/disclosureRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (bbb)(1)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482106/820-10-50-2

Reference 11: http://www.xbrl.org/2003/role/disclosureRef
-Topic 962
-SubTopic 325
-Name Accounting Standards Codification
-Section 45
-Paragraph 5
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477509/962-325-45-5

Reference 12: http://www.xbrl.org/2003/role/disclosureRef
-Topic 962
-SubTopic 205
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.6A-04(2)(b))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477804/962-205-S99-1

Reference 13: http://www.xbrl.org/2003/role/disclosureRef
-Topic 962
-SubTopic 205
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.6A-04(3)(b))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477804/962-205-S99-1

Reference 14: http://www.xbrl.org/2003/role/disclosureRef
-Topic 962
-SubTopic 205
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.6A-02(a))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477804/962-205-S99-1

Reference 15: http://www.xbrl.org/2003/role/disclosureRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (bbb)(2)(i)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482106/820-10-50-2

Reference 16: http://www.xbrl.org/2003/role/recommendedDisclosureRef
-Topic 825
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 23
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482907/825-10-50-23

Reference 17: http://www.xbrl.org/2003/role/disclosureRef
-Topic 962
-SubTopic 325
-Name Accounting Standards Codification
-Section 45
-Paragraph 6
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477509/962-325-45-6

+ Details

Statement of Changes in Net Assets Available for Benefits - EBP 039	12 Months Ended
	Dec. 31, 2025 USD ($)
Investment income:
Interest	$ 24,136
Dividends	4,181,456
Net appreciation in fair value of investments	24,986,401
Contributions:
Participants'	14,909,500
Employer's	6,931,911
Interest income on notes receivable from participants	523,372
Total additions	51,556,776
Deductions from net assets attributed to:
Distributions to participants or beneficiaries	7,122,453
Total deductions	7,122,453
Net increase	44,434,323
Net assets available for benefits December 31, 2024	126,777,958
Net assets available for benefits December 31, 2025	$ 171,212,281

RELATED-PARTY AND PARTY-IN-INTEREST TRANSACTIONS (Details) - EBP 039 - USD ($)	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024
EBP, Related Party and Party-in-Interest Transactions [Line Items]
Investment value	$ 163,563,000	$ 120,649,724
Dividend income	4,181,456
RTX common stock
EBP, Related Party and Party-in-Interest Transactions [Line Items]
Investment value	22,628,626	$ 14,780,221
Investments purchased	3,455,249
Investments sold	4,068,849
Net appreciation in the fair value of investments	8,428,239
Dividend income	$ 331,667

- Definition

+ References

+ Details

SUMMARY OF ACCOUNTING PRINCIPLES	12 Months Ended
SUMMARY OF ACCOUNTING PRINCIPLES	Dec. 31, 2025
EBP 039
EBP, Accounting Policy [Line Items]
SUMMARY OF ACCOUNTING PRINCIPLES	SUMMARY OF ACCOUNTING PRINCIPLES Basis of Accounting. The financial statements of the Plan are prepared under the accrual method of accounting. Investment Valuation and Income Recognition. Plan investments are stated at fair value as determined by the Plan Trustee, typically by reference to published market data. See Note 3 for further discussion regarding the determination of the fair value of Plan investments. Purchases and sales of investments are recorded on a trade-date basis. Interest income is accrued when earned. Dividend income is recorded on the ex-dividend date. Net appreciation in the fair value of investments includes realized and unrealized gains and losses. Notes Receivable from Participants. Notes receivable from participants are valued at their unpaid principal balance plus any accrued but unpaid interest. Delinquent loans are reclassified as distributions, which become taxable to the participant, based upon the terms of the Plan. Plan Expenses. Most administrative expenses, such as Trustee, custodial, legal, audit, and recordkeeping fees, were paid directly by the Company in 2025. Other administrative expenses were paid from Plan assets or certain forfeited balances of participants' non-vested accounts during 2025. Investment management fees are included within Net appreciation in fair value of investments. Payments of Benefits. Benefit payments to participants or beneficiaries are recorded when paid. Use of Estimates. The preparation of the Plan's financial statements, in conformity with accounting principles generally accepted in the United States of America (US GAAP), requires management to make estimates and assumptions that affect the reported amounts of net assets available for benefits at the dates of the financial statements, and changes therein during the reporting period and, when applicable, disclosures of contingent assets and liabilities at the dates of the financial statements. Actual results could differ from those estimates. Risks and Uncertainties. The Plan provides for various investment options in any combination of stocks, mutual funds, and other investment securities. Investment securities are exposed to various risks, such as interest rate, market, and credit risks. These risks can be adversely impacted by shifts in the market's perception of the issuers, changes in interest rates, and global economic conditions. Due to the level of risk associated with certain investment securities and the level of uncertainty related to changes in the value of investment securities, it is at least reasonably possible that changes in risks in the near term would materially affect participants' account balances and the amounts reported in the statements of net assets available for benefits. Subsequent Events. In preparing the accompanying financial statements, the Plan evaluated events occurring from December 31, 2025 through the date the financial statements were issued and determined there were none to disclose.

Schedule H, Line 4i - Schedule of Assets (Held at End of Year) (Details) - EBP 039 - USD ($)	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024
EBP, Schedule of Asset Held for Investment [Line Items]
Notes receivable from participants, current value	$ 7,253,087
Net assets available for benefits	$ 170,816,087
Notes receivable from participants, minimum borrowing term	1 year
Notes receivable from participants, maximum borrowing term	5 years
Notes receivable from participants, cost	$ 0
Minimum
EBP, Schedule of Asset Held for Investment [Line Items]
Notes receivable from participants, interest rate	4.25%	4.25%
Maximum
EBP, Schedule of Asset Held for Investment [Line Items]
Notes receivable from participants, interest rate	9.50%	9.56%
Investment, Identifier [Axis]: RTX Corporation \| Common stock
EBP, Schedule of Asset Held for Investment [Line Items]
Investments, current value	$ 22,628,626
Investment, Identifier [Axis]: State Street Global Advisors Trust Company State Street Short Term Investment Fund \| Short-term Investment Fund
EBP, Schedule of Asset Held for Investment [Line Items]
Investments, current value	277,679
Investment, Identifier [Axis]: Vanguard Target Retirement 2020 Fund \| Mutual Fund
EBP, Schedule of Asset Held for Investment [Line Items]
Investments, current value	1,027,430
Investment, Identifier [Axis]: Vanguard Target Retirement 2025 Fund \| Mutual Fund
EBP, Schedule of Asset Held for Investment [Line Items]
Investments, current value	3,974,173
Investment, Identifier [Axis]: Vanguard Target Retirement 2030 Fund \| Mutual Fund
EBP, Schedule of Asset Held for Investment [Line Items]
Investments, current value	8,011,558
Investment, Identifier [Axis]: Vanguard Target Retirement 2035 Fund \| Mutual Fund
EBP, Schedule of Asset Held for Investment [Line Items]
Investments, current value	8,234,200
Investment, Identifier [Axis]: Vanguard Target Retirement 2040 Fund \| Mutual Fund
EBP, Schedule of Asset Held for Investment [Line Items]
Investments, current value	16,781,046
Investment, Identifier [Axis]: Vanguard Target Retirement 2045 Fund \| Mutual Fund
EBP, Schedule of Asset Held for Investment [Line Items]
Investments, current value	21,264,741
Investment, Identifier [Axis]: Vanguard Target Retirement 2050 Fund \| Mutual Fund
EBP, Schedule of Asset Held for Investment [Line Items]
Investments, current value	20,872,734
Investment, Identifier [Axis]: Vanguard Target Retirement 2055 Fund \| Mutual Fund
EBP, Schedule of Asset Held for Investment [Line Items]
Investments, current value	19,782,048
Investment, Identifier [Axis]: Vanguard Target Retirement 2060 Fund \| Mutual Fund
EBP, Schedule of Asset Held for Investment [Line Items]
Investments, current value	6,079,747
Investment, Identifier [Axis]: Vanguard Target Retirement 2065 Fund \| Mutual Fund
EBP, Schedule of Asset Held for Investment [Line Items]
Investments, current value	2,274,643
Investment, Identifier [Axis]: Vanguard Target Retirement 2070 Fund \| Mutual Fund
EBP, Schedule of Asset Held for Investment [Line Items]
Investments, current value	491,468
Investment, Identifier [Axis]: Vanguard Target Retirement Income Fund \| Mutual Fund
EBP, Schedule of Asset Held for Investment [Line Items]
Investments, current value	1,228,894
Investment, Identifier [Axis]: Vanguard Total Bond Market Index Fund \| Mutual Fund
EBP, Schedule of Asset Held for Investment [Line Items]
Investments, current value	1,820,571
Investment, Identifier [Axis]: Vanguard Total International Stock Index Fund \| Mutual Fund
EBP, Schedule of Asset Held for Investment [Line Items]
Investments, current value	3,043,447
Investment, Identifier [Axis]: Vanguard Total Stock Market Index Fund \| Mutual Fund
EBP, Schedule of Asset Held for Investment [Line Items]
Investments, current value	15,173,806
Investment, Identifier [Axis]: Vanguard Treasury Money Market Fund \| Mutual Fund
EBP, Schedule of Asset Held for Investment [Line Items]
Investments, current value	$ 10,596,189

Cover	12 Months Ended
Cover	Dec. 31, 2025
Document Information [Line Items]
Document Type	11-K
Entity Registrant Name	RTX CORPORATION
Amendment Flag	false
Entity Central Index Key	0000101829
EBP 039
Document Information [Line Items]
Document Type	11-K
Entity Registrant Name	RTX CORPORATION
Amendment Flag	false
Entity Central Index Key	0000101829