Investments sold EBP, Investment Sold, Plan Interest in Master Trust, Selling Price Master Trust EBP, Master Trust [Policy Text Block] Investments at fair value EBP, Investment, Fair Value Employer Matching Contribution up to 6% EBP, Employer Matching Contribution, Percentage Two [Member] EBP, Employer Matching Contribution, Percentage Two Matching contributions in stock fund (in shares) EBP, Employer Contribution, Participant Compensation Matched, Shares EBP, Employer Contribution, Participant Compensation Matched, Shares Maximum Maximum [Member] Legal Entity [Axis] Legal Entity [Axis] Statistical Measurement [Domain] Statistical Measurement [Domain] EBP, Description of Plan [Table] EBP, Description of Plan [Table] Notes receivable from participants, minimum borrowing term EBP, Note Receivable From Participant, Minimum Borrowing Term EBP, Note Receivable From Participant, Minimum Borrowing Term Other securities Separate accounts, other securities EBP, Other Investment [Member] EBP, Related Party and Party-in-Interest Transactions [Table] EBP, Related Party and Party-in-Interest Transactions [Table] EBP, Fully Benefit-Responsive Investment Contract [Table] EBP, Fully Benefit-Responsive Investment Contract [Table] RTX Stock Fund EBP, Employer Matching Contribution, Employer, Stock Fund [Member] EBP, Employer Matching Contribution, Employer, Stock Fund Total deductions EBP, Change in Net Asset Available for Benefit, Decrease Maximum borrowing amount for notes receivable from participants EBP, Note Receivable from Participant, Account, Maximum Borrowing, Amount FAIR VALUE OF INVESTMENTS IN THE MASTER TRUST EBP, Investment, Fair Value and NAV [Text Block] Minimum borrowing amount for notes receivable from participants EBP, Note Receivable from Participant, Account, Minimum Borrowing, Amount DERIVATIVES EBP, Derivative [Text Block] EBP, Fully Benefit-Responsive Investment Contract [Abstract] Dividend and interest for investments purchased EBP, Investment Acquired, Plan Interest in Master Trust, Dividends And Interest, Purchase Price EBP, Investment Acquired, Plan Interest in Master Trust, Dividends And Interest, Purchase Price Assets held for investment, cost EBP, Asset Held for Investment, Cost EBP, Asset Held for Investment, Cost EBP, Nonconsolidated, Plan Interest in Master Trust EBP, Nonconsolidated, Plan Interest in Master Trust [Member] Level 1 Fair Value, Inputs, Level 1 [Member] Reconciliation of Financial Statements to Form 5500 EBP, Reconciliation of Financial Statement to Form 5500 [Table Text Block] NAV (in dollars per share) EBP, Net Asset Value per Share or Unit SYNTHETIC GUARANTEED INVESTMENT CONTRACTS EBP, Fully Benefit-Responsive Investment Contract [Text Block] EBP, Investment, Fair Value and NAV [Abstract] Minimum borrowing term for general loans for notes receivable from participants EBP, Note Receivable From Participant, General Loan, Minimum Borrowing Term EBP, Note Receivable From Participant, General Loan, Minimum Borrowing Term Assets: EBP, Asset [Abstract] Statistical Measurement [Axis] Statistical Measurement [Axis] EBP, Derivative [Table] EBP, Derivative [Table] Additions to net assets attributed to: Additions: EBP, Change in Net Asset Available for Benefit, Increase [Abstract] EBP, Statement of Change in Net Asset Available for Benefit [Table] EBP, Statement of Change in Net Asset Available for Benefit [Table] Transfers in from participating plan for purchase of units EBP, Change in Net Asset Available for Benefit, Transfer to (from) Plan Payment of Benefits EBP, Payment to Participant [Policy Text Block] Number of investment options EBP, Number of Investment Options EBP, Number of Investment Options EBP, Master Trust [Line Items] EBP, Master Trust [Line Items] Interest in Master Trust investment accounts, current value EBP, Asset Held for Investment, Plan Interest in Master Trust, Current Value Pre-tax automatic annual deferral rate increase EBP, Participant Contribution, Automatic, Annual Increase Deferral Rate 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. Percentage of invested amount to fund value EBP, Investment, Invested Amount To Fund Value, Percentage EBP, Investment, Invested Amount To Fund Value, Percentage Amendment Flag Amendment Flag Participants' EBP, Change in Net Asset Available for Benefit, Increase from Participant Contribution Notes receivable from participants, maximum borrowing term EBP, Note Receivable From Participant, Maximum Borrowing Term EBP, Note Receivable From Participant, Maximum Borrowing Term Total Total Investments Excluding Net Receivables Due To The Master Trust And Receivables For Securities Sold [Member] Total Investments Excluding Net Receivables Due To The Master Trust And Receivables For Securities Sold Basis of Accounting EBP, Basis of Accounting [Policy Text Block] Receivable for securities sold EBP, Investment Sale, Receivable Amounts forfeited from non-vested accounts EBP, Forfeited Nonvested Account, Increase From Participant Forfeitures EBP, Forfeited Nonvested Account, Increase From Participant Forfeitures EBP, Schedule of Asset Held for Investment [Table] EBP, Schedule of Asset Held for Investment [Table] RTX Stock Fund EBP, Employer, Stock Fund [Member] EBP, Employer, Stock Fund EBP, Description of Plan and Accounting Change [Abstract] Schedule of Investments in the Master Trust Carried at Fair Value EBP, Investment, Fair Value and NAV [Table Text Block] Employer Stock Funds EBP, Employer, Stock Funds [Member] EBP, Employer, Stock Funds Maximum number of loans outstanding for notes receivable from participants EBP, Note Receivable From Participant, Maximum Number Of Loans Outstanding EBP, Note Receivable From Participant, Maximum Number Of Loans Outstanding Derivative average notional value EBP, Derivative, Notional, Amount Investments [Domain] Investments [Domain] EBP, Master Trust [Abstract] Investment in Master Trust, at contract value Synthetic GICs held by the Master Trust EBP, Investment, Plan Interest in Master Trust, Contract Value Use of Estimates EBP, Use of Estimate [Policy Text Block] Schedule H, Line 4i - Schedule of Assets (Held at End of Year) EBP, Schedule of Asset Held for Investment [Text Block] Cover [Abstract] Minimum crediting interest rate EBP, Investment, Interest Rate Minimum EBP, Investment, Interest Rate Minimum Less: Amounts allocated to participant withdrawals EBP, Reconciliation to Form 5500, Net Asset Available for Benefit, Allocation to Withdrawing Participant, Not yet Paid Less: Deemed distributions of participant loans at December 31, 2024 EBP, Reconciliation to Form 5500, Payment to Participant, Decrease from Allocation to Withdrawing Participant, Paid Investments purchased EBP, Investment Acquired, Plan Interest in Master Trust, Purchase Price Minimum Minimum [Member] Matching contributions in stock fund EBP, Change in Net Asset Available for Benefit, Increase from Employer Contribution, Noncash Interest in real estate investment trusts Separate accounts, interest in real estate investment trusts EBP, Interest In Real Estate Investment Trusts [Member] EBP, Interest In Real Estate Investment Trusts Investment Type [Axis] Investment Type [Axis] Interest income on notes receivable from participants EBP, Change in Net Asset Available for Benefit, Increase from Interest Income on Note Receivable from Participant Maximum borrowing term for general loans for notes receivable from participants EBP, Note Receivable From Participant, General Loan, Maximum Borrowing Term EBP, Note Receivable From Participant, General Loan, Minimum Borrowing Term Net appreciation on fair value of investments EBP, Change in Net Asset Available for Benefit, Increase (Decrease) from Gain (Loss) on Investment Interest and dividend income EBP, Change in Net Asset Available for Benefit, Increase from Interest and Dividend Income on Investment EMPLOYEE STOCK OWNERSHIP PLAN EBP, Employee Stock Ownership Plan [Text Block] EBP, Employee Stock Ownership Plan EBP, Description of Plan [Line Items] EBP, Description of Plan [Line Items] EBP, Investment, Fair Value and NAV [Line Items] EBP, Investment, Fair Value and NAV [Line Items] DESCRIPTION OF THE PLAN EBP, Description of Plan [Text Block] EBP, Statement of Change in Net Asset Available for Benefit [Line Items] EBP, Statement of Change in Net Asset Available for Benefit [Line Items] EBP, Statement of Net Asset Available for Benefit [Table] EBP, Statement of Net Asset Available for Benefit [Table] EBP, Schedule of Asset Held for Investment [Line Items] EBP, Schedule of Asset Held for Investment [Line Items] EBP, Nonconsolidated, Master Trust and Plan Interest in Master Trust [Domain] EBP, Nonconsolidated, Master Trust and Plan Interest in Master Trust [Domain] Number of sub fund investment options underlying investments of the master trust EBP, Number of Sub Fund Investment Options Underlying Investments Of The Master Trust EBP, Number of Sub Fund Investment Options Underlying Investments Of The Master Trust RTX common stock EBP, Employer, Common Stock [Member] Common and preferred stock Separate accounts, common and preferred stock EBP, Common Stock And Preferred Stock [Member] EBP, Common Stock And Preferred Stock EBP, Schedule of Asset Held for Investment [Abstract] EBP, Accounting Policy [Table] EBP, Accounting Policy [Table] EBP, Distribution Type [Domain] EBP, Distribution Type [Domain] EBP, Distribution Type [Domain] Total additions EBP, Change in Net Asset Available for Benefit, Increase Investment gain: EBP, Change in Net Asset Available for Benefit, Increase (Decrease) from Income (Loss) on Investment [Abstract] Cash equivalents and short-term investments Short-term investments Short-Term Investments [Member] Commingled index funds EBP, Commingled Index Funds [Member] EBP, Commingled Index Funds Vesting period for employer contributions EBP, Employer Contribution Vesting Service Period EBP, Employer Contribution Vesting Service Period Administrative expenses Master Trust administrative expense EBP, Change in Net Asset Available for Benefit, Decrease from Administrative Expense Assets held for investment, current value EBP, Asset Held for Investment Stable value fund investment contracts (at contract value) EBP, Investment, Contract Value Risks and Uncertainties EBP, Risk and Uncertainty [Policy Text Block] Document Information [Line Items] Document Information [Line Items] RTX ESOP Fund EBP, Employer, Employee Stock Ownership Fund [Member] EBP, Employer, Employee Stock Ownership Fund INVESTMENT IN MASTER TRUST EBP, Master Trust [Text Block] Percentage of participant compensation matched EBP, Employer Contribution, Participant Compensation Matched, Percentage EBP, Statement of Change in Net Asset Available for Benefit [Abstract] Level 2 Fair Value, Inputs, Level 2 [Member] EBP, Fully Benefit-Responsive Investment Contract [Line Items] EBP, Fully Benefit-Responsive Investment Contract [Line Items] Employer's EBP, Change in Net Asset Available for Benefit, Increase from Employer Contribution, Cash and Noncash EBP, Tax Status [Table] EBP, Tax Status [Table] EBP, Employee Stock Ownership Plan [Table] EBP, Employee Stock Ownership Plan [Table] EBP, Employee Stock Ownership Plan Increase in net assets EBP, Change in Net Asset Available for Benefit, Increase (Decrease) RELATED-PARTY AND PARTY-IN-INTEREST TRANSACTIONS EBP, Related Party and Party-in-Interest Transactions [Text Block] Subtotal EBP, Investment, Fair and Contract Value EBP, Related Party and Party-in-Interest Transactions [Abstract] EBP, Accounting Policy, Accounting Standard Update, and Change in Accounting Principle [Abstract] Unrealized appreciation on assets EBP, Change in Net Asset Available for Benefit, Increase (Decrease) from Unrealized Gain (Loss) on Investment Pre-tax automatic deferral rate EBP, Participant Contribution, Automatic, Deferral Rate Distributions to participants or beneficiaries Distributions to participants Transfers out on behalf of participating plan for distributions EBP, Change in Net Asset Available for Benefit, Decrease from Payment to Participant Investment in Master Trust, at fair value Value of interest held in investment EBP, Investment, Plan Interest in Master Trust, Fair Value Fair Value Hierarchy and NAV [Domain] Fair Value Hierarchy and NAV [Domain] EBP, Employee Stock Ownership Plan [Line Items] EBP, Employee Stock Ownership Plan [Line Items] EBP, Employee Stock Ownership Plan [Line Items] EBP, Statement of Net Asset Available for Benefit [Abstract] Target-Date Retirement Funds EBP, Target-Date Retirement Funds [Member] EBP, Target-Date Retirement Funds Cash equivalents and short-term investments EBP, Cash And Cash Equivalents And Short-Term Investments [Member] EBP, Cash And Cash Equivalents And Short-Term Investments EBP, Accounting Policy [Line Items] EBP, Accounting Policy [Line Items] Separate accounts, short-term Investments EBP, Separate Account, Short-term Investments [Member] EBP, Separate Account, Short-term Investments EBP, Tax Status [Abstract] EBP, Reconciliation of Financial Statement to Form 5500 [Table] EBP, Reconciliation of Financial Statement to Form 5500 [Table] Multi-Asset Class Funds EBP, Multi-Asset Class Funds [Member] EBP, Multi-Asset Class Funds EBP, Employer Contribution, Type [Axis] EBP, Employer Contribution, Type [Axis] EBP, Employer Contribution, Type Plan interest in net increase in net assets of Master Trust EBP, Change in Net Asset Available for Benefit, Increase (Decrease) from Change in Plan Interest in Master Trust EBP, Reconciliation of Financial Statement to Form 5500 [Line Items] EBP, Reconciliation of Financial Statement to Form 5500 [Line Items] Plan Expenses EBP, Expense [Policy Text Block] Distributions to participants or beneficiaries per Form 5500 EBP, Form 5500 Caption, Benefit Payment and Payments to Provide Benefits RECONCILIATION OF FINANCIAL STATEMENTS TO FORM 5500 EBP, Reconciliation of Financial Statement to Form 5500 [Text Block] Notes receivable from participants, current value EBP, Asset Held for Investment, Participant Loan, after Deemed Distribution Synthetic Guaranteed Investment Contracts / Investment Valuation and Income Recognition EBP, Investment [Policy Text Block] Equity Index Funds EBP, Equity Index Funds [Member] EBP, Equity Index Funds EBP, Master Trust [Table] EBP, Master Trust [Table] Document Type Document Type PLAN TERMINATION EBP, Plan Termination [Text Block] Entity Central Index Key Entity Central Index Key Interest rate for notes receivable from participants Notes receivable from participants, interest rate EBP, Asset Held for Investment, Participant Loan, Interest Rate EBP, Reconciliation of Financial Statement to Form 5500 [Abstract] Mutual funds and exchange traded funds EBP, Mutual Funds And Exchange Traded Funds [Member] EBP, Mutual Funds And Exchange Traded Funds Net assets: EBP, Net Asset Available for Benefit [Abstract] EBP, Tax Status [Line Items] EBP, Tax Status [Line Items] Percentage of the participant's eligible compensation EBP, Employer Contribution, Annual Fixed Rate Contribution, Percentage EBP, Employer Contribution, Annual Fixed Rate Contribution, Percentage Deductions from net assets attributed to: Deductions: EBP, Change in Net Asset Available for Benefit, Decrease [Abstract] Forfeitures used to fund RTX's contributions EBP, Forfeited Nonvested Account, Decrease from Employer Contribution Notes receivable from participants EBP, Note Receivable from Participant EBP, Distribution Type [Axis] EBP, Distribution Type [Axis] EBP, Distribution Type EBP, Nonconsolidated, Master Trust EBP, Nonconsolidated, Master Trust [Member] EBP, Employee Stock Ownership Plan [Abstract] EBP, Employee Stock Ownership Plan Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Axis] SUMMARY OF ACCOUNTING PRINCIPLES EBP, Summary of Accounting Policy [Text Block] Entity Registrant Name Entity Registrant Name Interest in Master Trust investment accounts, cost EBP, Asset Held for Investment, Plan Interest in Master Trust, Cost EBP, Asset Held for Investment, Plan Interest in Master Trust, Cost Basis spread on variable rate for notes receivable from participants EBP, Participant Loan, Basis Spread On Variable Rate EBP, Participant Loan, Basis Spread On Variable Rate Schedule of Master Trust Financial Information EBP, Master Trust [Table Text Block] Subsequent Events EBP, Subsequent Event [Policy Text Block] TAX STATUS EBP, Tax Status [Text Block] Vested account balance EBP, Note Receivable from Participant, Account, Maximum Borrowing, to Total Account, Percentage EBP, Derivative [Line Items] EBP, Derivative [Line Items] Highly Liquid Short-Term Investments Highly Liquid Short-Term Investments [Member] Highly Liquid Short-Term Investments Period used for deduction from maximum borrowing amount for highest loan balance for notes receivable from participants EBP, Note Receivable From Participant, Account, Maximum Borrowing, Deduction For Highest Balance, Period EBP, Note Receivable From Participant, Account, Maximum Borrowing, Deduction For Highest Balance, Period Document Information [Table] Document Information [Table] Number of sub fund investment options EBP, Number of Sub Fund Investment Options EBP, Number of Sub Fund Investment Options Employer fixed rate contribution percentage EBP, Participant Contribution, Maximum Contribution to Eligible Compensation, Percentage EBP, Participant Contribution, Maximum Contribution to Eligible Compensation, Percentage Notes Receivable from Participants EBP, Note Receivable from Participant [Policy Text Block] EBP, Nonconsolidated, Master Trust and Plan Interest in Master Trust [Axis] EBP, Nonconsolidated, Master Trust and Plan Interest in Master Trust [Axis] Add: Deemed distributions of participant loans at December 31, 2025 EBP, Reconciliation to Form 5500, Payment to Participant, Increase from Allocation to Withdrawing Participant, Not yet Paid EBP, Related Party and Party-in-Interest Transactions [Line Items] EBP, Related Party and Party-in-Interest Transactions [Line Items] Level 3 Fair Value, Inputs, Level 3 [Member] Net receivables due to the Master Trust EBP, Other Receivable EBP 017 EBP 017 [Member] EBP 017 Net assets available for benefits Net assets at the beginning of the year Net assets at the end of the year Net assets available for benefits per the financial statements EBP, Net Asset Available for Benefit Entity [Domain] Entity [Domain] Contributions: EBP, Change in Net Asset Available for Benefit, Increase from Contribution [Abstract] Receive benefits in installments EBP, Receive Benefits In Installments EBP, Receive Benefits In Installments Forfeited non-vested account balance EBP, Forfeited Nonvested Account Employer contribution matching percentage EBP, Employer Contribution, Matching Percentage Net assets available for benefits per Form 5500 EBP, Form 5500 Caption, Net Assets EBP, Derivative [Abstract] Not Subject to Leveling Fair Value Measured at Net Asset Value Per Share [Member] EBP, Investment, Fair Value and NAV [Table] EBP, Investment, Fair Value and NAV [Table] Percentage interest in the Master Trust EBP, Interest in Master Trust, Percentage Notes receivable from participants, cost EBP, Asset Held for Investment, Participant Loan, Cost EBP, Asset Held for Investment, Participant Loan, Cost EBP, Employer Contribution, Type [Domain] EBP, Employer Contribution, Type [Domain] EBP, Employer Contribution, Type [Domain] EBP, Statement of Net Asset Available for Benefit [Line Items] EBP, Statement of Net Asset Available for Benefit [Line Items] Employer Matching Contribution for First 3% EBP, Employer Matching Contribution, Percentage One [Member] EBP, Employer Matching Contribution, Percentage One