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Inventories - Narrative (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2024 | Sep. 30, 2024 | Sep. 30, 2023 | Dec. 31, 2023
Inventory [Line Items] |  |  |  |
777X and 767 reach-forward losses |  | $ 3,006 |  |
Early Issue Sales Consideration |  |  |  |
Inventory [Line Items] |  |  |  |
Inventory subject to uncertainty | $ 4,716 | 4,716 |  | $ 4,126
Airplane Program 737 |  |  |  |
Inventory [Line Items] |  |  |  |
Amount of deferred costs related to commercial aircraft programs | 8,670 | 8,670 |  | 6,011
Unamortized tooling and other non-recurring costs | 879 | 879 |  | 792
Deferred production, unamortized tooling and other nonrecurring costs to be recovered from firm orders at the balance sheet date | 9,505 | 9,505 |  |
Deferred production, unamortized tooling and other nonrecurring costs to be recovered from future orders | 44 | 44 |  |
Airplane Program 777x |  |  |  |
Inventory [Line Items] |  |  |  |
Amount of deferred costs related to commercial aircraft programs | 552 | 552 |  | 1,792
Unamortized tooling and other non-recurring costs | 4,255 | 4,255 |  | 4,063
Inventory, work in process | 3,818 | 3,818 |  | 4,638
Abnormal production costs |  | 0 | 442 |
777X and 767 reach-forward losses | 2,608 |  |  |
Airplane Program 787 |  |  |  |
Inventory [Line Items] |  |  |  |
Amount of deferred costs related to commercial aircraft programs | 12,452 | 12,452 |  | 12,384
Unamortized tooling and other non-recurring costs | 1,402 | 1,402 |  | 1,480
Deferred production, unamortized tooling and other nonrecurring costs to be recovered from firm orders at the balance sheet date | 11,403 | 11,403 |  |
Deferred production, unamortized tooling and other nonrecurring costs to be recovered from future orders | 2,451 | 2,451 |  |
Abnormal production costs |  | 209 | $ 937 |
Supplier advances | $ 1,394 | $ 1,394 |  | $ 1,764

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