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Inventories - Narrative (Details) - USD ($) $ in Millions | 3 Months Ended |
--- | --- | ---
Mar. 31, 2024 | Mar. 31, 2023 | Dec. 31, 2023
Early Issue Sales Consideration |  |  |
Inventory [Line Items] |  |  |
Inventory subject to uncertainty | $ 4,558 |  | $ 4,126
Airplane Program 737 |  |  |
Inventory [Line Items] |  |  |
Deferred production costs | 6,794 |  | 6,011
Unamortized tooling and other non-recurring costs | 872 |  | 792
Deferred production, unamortized tooling and other nonrecurring costs to be recovered from firm orders at the balance sheet date | 7,635 |  |
Deferred production, unamortized tooling and other nonrecurring costs to be recovered from future orders | 31 |  |
Airplane Program 777x |  |  |
Inventory [Line Items] |  |  |
Deferred production costs | 2,160 |  | 1,792
Unamortized tooling and other non-recurring costs | 4,139 |  | 4,063
Inventory, work in process | 5,337 |  | 4,638
Abnormal production costs |  | $ 126 |
Airplane Program 787 |  |  |
Inventory [Line Items] |  |  |
Deferred production costs | 12,107 |  | 12,384
Unamortized tooling and other non-recurring costs | 1,443 |  | 1,480
Deferred production, unamortized tooling and other nonrecurring costs to be recovered from firm orders at the balance sheet date | 11,601 |  |
Deferred production, unamortized tooling and other nonrecurring costs to be recovered from future orders | 1,949 |  |
Abnormal production costs | 80 | $ 379 |
Supplier advances | $ 1,606 |  | $ 1,764

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