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Commitments and Contingencies (Details) $ in Millions |  |  |  |  |  | 1 Months Ended | 3 Months Ended | 9 Months Ended |
--- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Aug. 29, 2026 USD ($) | Oct. 16, 2024 USD ($) count contract | Oct. 15, 2024 USD ($) | Sep. 30, 2024 USD ($) | Aug. 29, 2024 USD ($) | Aug. 31, 2025 USD ($) | Sep. 30, 2024 USD ($) | Dec. 31, 2023 USD ($) | Apr. 30, 2019 USD ($) | Dec. 31, 2018 USD ($) | Dec. 31, 2013 USD ($) | Sep. 30, 2025 USD ($) claim action | Dec. 31, 2024 USD ($) | Sep. 30, 2024 USD ($) | Sep. 30, 2023 USD ($) | Sep. 30, 2025 USD ($) claim action | Sep. 30, 2024 USD ($) | Sep. 11, 2025 claim
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Reserve for environmental remediation |  |  |  |  |  |  |  |  |  |  |  | $ 800 | $ 800 |  |  | $ 800 |  |
Financing and other contractual commitments |  |  |  |  |  |  |  |  |  |  |  | 13,300 | 14,100 |  |  | 13,300 |  |
Operating profit charge |  |  |  |  |  |  |  |  |  |  |  | (2,523) |  | $ (2,028) |  | (6,704) | $ (4,427) |
Other accrued liabilities |  |  |  |  |  |  |  |  |  |  |  | 14,835 | 14,831 |  |  | 14,835 |  |
Thales-Raytheon Systems and Related Matters |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Compliance period |  |  | 3 years |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Payment for loss contingency accrued |  |  |  |  |  |  |  |  |  |  |  |  | 384 |  |  |  |  |
Thales-Raytheon Systems and Related Matters | Deferred Prosecution Agreement (DPA-1) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Compliance period |  |  | 3 years |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Damages sought |  |  | $ 282 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Thales-Raytheon Systems and Related Matters | Securities and Exchange Commission (SEC) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Damages sought |  |  | $ 102 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Trade Compliance Matters |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss contingency accrual |  |  |  |  |  |  |  |  |  |  |  | 218 |  |  |  | 218 |  |
Trade Compliance Matters | Consent Agreement |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreement term |  |  |  |  | 3 years |  |  |  |  |  |  |  |  |  |  |  |  |
Damages sought |  |  |  |  | $ 200 |  |  |  |  |  |  |  |  |  |  |  |  |
Trade Compliance Matters | Consent Agreement, Suspensible Portion |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Damages sought |  |  |  |  | 100 |  |  |  |  |  |  |  |  |  |  |  |  |
Trade Compliance Matters | Consent Agreement, Non-Suspensible Portion |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Damages sought |  |  |  |  | $ 100 |  |  |  |  |  |  |  |  |  |  |  |  |
Payments for legal settlements |  |  |  |  |  | $ 33 | $ 34 |  |  |  |  |  |  |  |  |  |  |
Trade Compliance Matters | Consent Agreement, Non-Suspensible Portion | Forecast [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Payments for legal settlements | $ 33 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
2019 U.S. Defense Contract Management Agency Claim Against Pratt & Whitney |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Damages sought |  |  |  |  |  |  |  |  | $ 1,700 |  |  |  |  |  |  |  |  |
Interest sought |  |  |  |  |  |  |  |  |  |  |  | 1,400 |  |  |  | 1,400 |  |
2019 U.S. Defense Contract Management Agency Second Claim Against Pratt & Whitney |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Damages sought |  |  |  | $ 1,100 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest sought |  |  |  |  |  |  |  |  |  |  |  | $ 383 |  |  |  | $ 383 |  |
U.S. Defense Contract Management Agency Claim Against Pratt & Whitney |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of pending claims | claim |  |  |  |  |  |  |  |  |  |  |  | 3 |  |  |  | 3 |  |
2013 U.S. Defense Contract Management Agency Claim Against Pratt & Whitney |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Damages sought |  |  |  |  |  |  |  |  |  |  | $ 177 |  |  |  |  |  |  |
Interest sought |  |  |  |  |  |  |  |  |  |  |  | $ 203 |  |  |  | $ 203 |  |
2018 U.S. Defense Contract Management Agency Claim Against Pratt & Whitney |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Damages sought |  |  |  |  |  |  |  |  |  | $ 269 |  |  |  |  |  |  |  |
Interest sought |  |  |  |  |  |  |  |  |  |  |  | 179 |  |  |  | 179 |  |
U. S. Defense Contract Management Agency Claim Against Pratt Whitney Third Claim |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Damages sought |  |  |  |  |  |  |  | $ 277 |  |  |  |  |  |  |  |  |  |
Interest sought |  |  |  |  |  |  |  |  |  |  |  | $ 99 |  |  |  | $ 99 |  |
DOJ Investigation and Contract Pricing Disputes |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Payment for loss contingency accrued |  |  |  |  |  |  |  |  |  |  |  |  | 580 |  |  |  |  |
DOJ Investigation and Contract Pricing Disputes | Second Deferred Prosecution Agreement (DPA-2) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Compliance period |  | 3 years |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Damages sought |  | $ 147 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of counts | count |  | 2 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of legacy contracts | contract |  | 2 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
DOJ Investigation and Contract Pricing Disputes | False Claims Act (FCA) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Damages sought |  | $ 433 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Powder Metal Disclosure |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of pending claims | claim |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 2
Number of pending civil actions | action |  |  |  |  |  |  |  |  |  |  |  | 2 |  |  |  | 2 |  |
Pratt & Whitney | PW1100 GTF Program |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Operating profit charge |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 2,900 |  |  |
Net program share percentage |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 51.00% |  |  |
Increase in accrued liabilities |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 2,800 |  |  |
Other accrued liabilities |  |  |  |  |  |  |  |  |  |  |  | $ 900 | $ 1,700 |  |  | $ 900 |  |
Other Financing Arrangements |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Other commitment |  |  |  |  |  |  |  |  |  |  |  | 4,100 |  |  |  | 4,100 |  |
Industrial Participation Obligations |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Other commitment |  |  |  |  |  |  |  |  |  |  |  | $ 11,500 |  |  |  | $ 11,500 |  |

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