DESCRIPTION OF THE PLAN (Details) - EBP 017	12 Months Ended
Dec. 31, 2025 USD ($) option loan	Dec. 31, 2024 USD ($)
EBP, Description of Plan [Line Items]
Employer fixed rate contribution percentage	50.00%
Pre-tax automatic annual deferral rate increase	1.00%
Vesting period for employer contributions	2 years
Amounts forfeited from non-vested accounts	$ 16,700,000
Forfeitures used to fund RTX's contributions	28,700,000
Forfeited non-vested account balance	$ 0	$ 9,500,000
Vested account balance	50.00%
Maximum borrowing amount for notes receivable from participants	$ 50,000,000
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	$ 1,000,000
Minimum borrowing term for general loans for notes receivable from participants	1 year
Maximum borrowing term for general loans 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%
Distributions to participants	$ 5,486,411,000
RTX common stock
EBP, Description of Plan [Line Items]
Distributions to participants	$ 197,000,000
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%
Percentage of the participant's eligible compensation	3.00%
Interest rate for notes receivable from participants	3.25%	3.25%
Receive benefits in installments	2 years
Maximum
EBP, Description of Plan [Line Items]
Pre-tax automatic deferral rate	10.00%
Percentage of the participant's eligible compensation	7.00%
Interest rate for notes receivable from participants	10.50%	10.50%
Receive benefits in installments	20 years
Equity Index Funds
EBP, Description of Plan [Line Items]
Number of investment options \| option	4
Multi-Asset Class Funds
EBP, Description of Plan [Line Items]
Number of investment options \| option	1
Employer Stock Funds
EBP, Description of Plan [Line Items]
Number of investment options \| option	2
Target-Date Retirement Funds
EBP, Description of Plan [Line Items]
Number of investment options \| option	13

EBP, Employer Contribution, Annual Fixed Rate Contribution, Percentage

No definition available.

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Namespace Prefix:	rtx_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

EBP, Employer Contribution Vesting Service Period

+ References

No definition available.

+ Details

Name:	rtx_EBPEmployerContributionVestingServicePeriod
Namespace Prefix:	rtx_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

EBP, Forfeited Nonvested Account, Increase From Participant Forfeitures

+ References

No definition available.

+ Details

Name:	rtx_EBPForfeitedNonvestedAccountIncreaseFromParticipantForfeitures
Namespace Prefix:	rtx_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

EBP, Note Receivable From Participant, Account, Maximum Borrowing, Deduction For Highest Balance, Period

+ References

No definition available.

+ Details

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Namespace Prefix:	rtx_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	instant

- Definition

EBP, Note Receivable From Participant, General Loan, Minimum Borrowing Term

+ References

No definition available.

+ Details

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Namespace Prefix:	rtx_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

EBP, Note Receivable From Participant, General Loan, Minimum Borrowing Term

+ References

No definition available.

+ Details

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Namespace Prefix:	rtx_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

EBP, Note Receivable From Participant, Maximum Number Of Loans Outstanding

+ References

No definition available.

+ Details

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Namespace Prefix:	rtx_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

EBP, Number of Investment Options

+ References

No definition available.

+ Details

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Namespace Prefix:	rtx_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

Annual increase in percentage of eligible compensation contributed for participant automatically enrolled in employee stock purchase, saving, or similar plan (employee benefit plan (EBP)) until the contribution reaches maximum threshold.

+ References

No definition available.

+ Details

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Namespace Prefix:	rtx_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

EBP, Participant Contribution, Maximum Contribution to Eligible Compensation, Percentage

+ References

No definition available.

+ Details

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Namespace Prefix:	rtx_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

EBP, Participant Loan, Basis Spread On Variable Rate

+ References

No definition available.

+ Details

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Namespace Prefix:	rtx_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

EBP, Receive Benefits In Installments

+ References

No definition available.

+ Details

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Namespace Prefix:	rtx_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	instant

- Definition

Amount of decrease in net asset available for benefit from payment of benefit to participant in employee stock purchase, saving, or similar plan (employee benefit plan (EBP)), including, but not limited to, withdrawal.

+ References

Reference 1: 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 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 962
-SubTopic 205
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.6A-05(a)(Schedule III))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477804/962-205-S99-1

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 962
-SubTopic 205
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.6A-04(5)(b))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477804/962-205-S99-1

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Topic 962
-SubTopic 325
-Name Accounting Standards Codification
-Section 50
-Paragraph 2B
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477783/962-325-50-2B

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Topic 962
-SubTopic 205
-Name Accounting Standards Codification
-Section 45
-Paragraph 7
-Subparagraph (f)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477063/962-205-45-7

+ Details

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Namespace Prefix:	us-gaap-ebp_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- 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

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 962
-SubTopic 205
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478416/962-205-50-1

+ Details

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Namespace Prefix:	us-gaap-ebp_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Percentage of employer matching contribution on eligible participant contribution to employee stock purchase, saving, or similar plan (employee benefit plan (EBP)).

+ References

+ Details

Name:	us-gaap-ebp_EmployeeBenefitPlanEmployerContributionMatchingPercentage
Namespace Prefix:	us-gaap-ebp_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Percentage of participant compensation eligible for employer matching contribution for participant in employee stock purchase, saving, or similar plan (employee benefit plan (EBP)).

+ References

+ Details

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Namespace Prefix:	us-gaap-ebp_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of plan asset, in forfeited nonvested account, no longer allocated to participant in employee stock purchase, saving, or similar plan (employee benefit plan (EBP)).

+ References

+ Details

Name:	us-gaap-ebp_EmployeeBenefitPlanForfeitedNonvestedAccount
Namespace Prefix:	us-gaap-ebp_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amount of decrease in forfeited nonvested account of employee stock purchase, saving, or similar plan (employee benefit plan (EBP)) from employer contribution.

+ References

+ Details

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Namespace Prefix:	us-gaap-ebp_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Amount of maximum account balance that participant in employee stock purchase, saving, or similar plan (employee benefit plan (EBP)) can borrow.

+ References

+ Details

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Namespace Prefix:	us-gaap-ebp_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Percentage of maximum account balance that participant in employee stock purchase, saving, or similar plan (employee benefit plan (EBP)) can borrow to total participant account balance.

+ References

+ Details

Name:	us-gaap-ebp_EmployeeBenefitPlanNoteReceivableFromParticipantAccountMaximumBorrowingToTotalAccountPercentage
Namespace Prefix:	us-gaap-ebp_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Amount of minimum account balance that participant in employee stock purchase, saving, or similar plan (employee benefit plan (EBP)) can borrow.

+ References

+ Details

Name:	us-gaap-ebp_EmployeeBenefitPlanNoteReceivableFromParticipantAccountMinimumBorrowingAmount
Namespace Prefix:	us-gaap-ebp_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Percentage of eligible compensation contributed for participant automatically enrolled in employee stock purchase, saving, or similar plan (employee benefit plan (EBP)).

+ References

+ Details

Name:	us-gaap-ebp_EmployeeBenefitPlanParticipantContributionAutomaticDeferralRate
Namespace Prefix:	us-gaap-ebp_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Interest rate on participant loan in schedule of asset held for investment of employee stock purchase, saving, or similar plan (employee benefit plan (EBP)).

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name Employee Retirement Income Security Act of 1974
-Number 2520
-Section 103
-Subsection 10
-Paragraph b
-Subparagraph (1)(i)(D)
-Publisher DOL-EBSA

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 962
-SubTopic 205
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.6A-05(a)(Schedule I))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477804/962-205-S99-1

+ Details

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Namespace Prefix:	us-gaap-ebp_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Details

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Namespace Prefix:
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- Details

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- Details

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- Details

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- Details

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- Details

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- Details

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Namespace Prefix:
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- Details

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Namespace Prefix:
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- Details

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Namespace Prefix:
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- Details

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