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Liabilities, Commitments and Contingencies - Narrative (Details) $ in Millions | 3 Months Ended | 9 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | --- | ---
Sep. 30, 2023 USD ($) lot aircraft | Jun. 30, 2023 USD ($) | Mar. 31, 2023 USD ($) | Sep. 30, 2022 USD ($) | Sep. 30, 2023 USD ($) lot aircraft | Sep. 30, 2022 USD ($) | Dec. 31, 2022 USD ($) | Dec. 31, 2018 USD ($) aircraft lot simulator | Dec. 31, 2011 aircraft lot tanker
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |  |  |
737 MAX customer concessions and other considerations liability | $ 1,500 |  |  |  | $ 1,500 |  |  |  |
Loss contingency, range of possible loss, portion not accrued | 1,017 |  |  |  | 1,017 |  | $ 1,058 |  |
Contingent liabilities on outstanding letters of credit agreements and surety bonds | 4,420 |  |  |  | 4,420 |  | 5,070 |  |
Supplier finance program, obligation | 2,900 |  |  |  | 2,900 |  | 2,500 |  |
Increase to Loss from operations | $ 1,252 |  |  | $ 2,424 | $ 2,600 | $ 3,965 |  |  |
Number of annual production lot | lot |  |  |  |  |  |  |  |  | 13
Minimum | Supplier Finance Program, Majority of Amounts Payable |  |  |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |  |  |
Supplier finance program, payment timing, period | 30 days |  |  |  | 30 days |  |  |  |
Maximum |  |  |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |  |  |
Supplier finance program, payment timing, period | 12 months |  |  |  | 12 months |  |  |  |
Maximum | Supplier Finance Program, Majority of Amounts Payable |  |  |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |  |  |
Supplier finance program, payment timing, period | 90 days |  |  |  | 90 days |  |  |  |
VC-25B |  |  |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |  |  |
Contract value | $ 4,300 |  |  |  | $ 4,300 |  |  |  |
Number of commercial aircraft | aircraft | 2 |  |  |  | 2 |  |  |  |
Increase to Loss from operations | $ 482 |  |  |  |  |  | 1,452 |  |
KC-46A Tanker |  |  |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |  |  |
Contract value | $ 24,000 |  |  |  | $ 24,000 |  |  |  |
Increase to Loss from operations |  |  | $ 245 |  |  |  | 1,374 |  |
Number of generation aerial refueling tanker | tanker |  |  |  |  |  |  |  |  | 4
Number of aircraft | aircraft | 124 |  |  |  | 124 |  |  |  | 179
Number of low rate initial production lot | lot | 9 |  |  |  | 9 |  |  |  |
KC-46A Tanker | Capitalized Precontract Costs |  |  |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |  |  |
Capitalized precontract costs | $ 160 |  |  |  | $ 160 |  |  |  |
KC-46A Tanker | Potential Termination Liabilities |  |  |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |  |  |
Capitalized precontract costs | 150 |  |  |  | 150 |  |  |  |
MQ-25 |  |  |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |  |  |
Contract value |  |  |  |  |  |  |  | $ 890 |
Increase to Loss from operations | 71 | $ 68 |  |  |  |  | 579 |  |
Number of aircraft | aircraft |  |  |  |  |  |  |  | 7 |
T-7A EMD |  |  |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |  |  |
Contract value |  |  |  |  |  |  |  | $ 860 |
Increase to Loss from operations |  |  |  |  |  |  | 203 |  |
Number of aircraft | aircraft |  |  |  |  |  |  |  | 5 |
Number of simulator | simulator |  |  |  |  |  |  |  | 7 |
Services probable of being exercised, number of aircrafts | aircraft |  |  |  |  |  |  |  | 346 |
T-7A Production |  |  |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |  |  |
Increase to Loss from operations |  | $ 189 |  |  |  |  | 552 |  |
Number of annual production lot | lot |  |  |  |  |  |  |  | 11 |
T-7A Production | Capitalized Precontract Costs |  |  |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |  |  |
Capitalized precontract costs | 162 |  |  |  | 162 |  |  |  |
T-7A Production | Potential Termination Liabilities |  |  |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |  |  |
Capitalized precontract costs | 421 |  |  |  | 421 |  |  |  |
Commercial Crew |  |  |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |  |  |
Increase to Loss from operations | 257 |  |  |  |  |  | 288 |  |
Commercial Crew | Capitalized Precontract Costs |  |  |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |  |  |
Capitalized precontract costs | 191 |  |  |  | 191 |  |  |  |
Commercial Crew | Potential Termination Liabilities |  |  |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |  |  |
Capitalized precontract costs | 196 |  |  |  | 196 |  |  |  |
Financing Commitment |  |  |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |  |  |
Other commitment | 16,499 |  |  |  | 16,499 |  | 16,105 |  |
Joint Venture |  |  |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |  |  |
Other commitment | $ 274 |  |  |  | $ 274 |  |  |  |
Other commitment, period | 5 years |  |  |  | 5 years |  |  |  |
Total Contractual Trade-In Commitment | Commercial Aircraft Commitments |  |  |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |  |  |
Other commitment | $ 1,430 |  |  |  | $ 1,430 |  | 1,117 |  |
Net Amounts Payable to Customers Related to Probable Contractual Trade-In Commitments | Commercial Aircraft Commitments |  |  |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |  |  |
Other commitment | 360 |  |  |  | 360 |  | 286 |  |
Fair Value of Trade in Value of Aircraft | Commercial Aircraft Commitments |  |  |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |  |  |
Other commitment | 360 |  |  |  | 360 |  | $ 286 |  |
2023 |  |  |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |  |  |
Changes in estimates |  |  |  |  | 300 |  |  |  |
Future Years |  |  |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |  |  |
Changes in estimates |  |  |  |  | 400 |  |  |  |
Contracted Customer Concessions & Other Considerations Liability |  |  |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |  |  |
737 MAX customer concessions and other considerations liability | 1,400 |  |  |  | 1,400 |  |  |  |
Contingent on Customer Negotiations |  |  |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |  |  |
737 MAX customer concessions and other considerations liability | 100 |  |  |  | 100 |  |  |  |
Lower Customer Delivery Payments |  |  |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |  |  |
737 MAX customer concessions and other considerations liability | 600 |  |  |  | 600 |  |  |  |
Cash Payments to Customers |  |  |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |  |  |
737 MAX customer concessions and other considerations liability | 700 |  |  |  | 700 |  |  |  |
Customer Concessions |  |  |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |  |  |
737 MAX customer concessions and other considerations liability | $ 100 |  |  |  | $ 100 |  |  |  |

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