Inventories - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Early Issue Sales Consideration
Inventories [Line Items]
Inventory subject to uncertainty	$ 4,126	$ 3,586
Airplane Program 737
Inventories [Line Items]
Deferred production costs	6,011	2,955
Unamortized tooling and other non-recurring costs	792	626
Deferred production, unamortized tooling and other nonrecurring costs to be recovered from firm orders at the balance sheet date	6,767
Deferred production, unamortized tooling and other nonrecurring costs to be recovered from future orders	36
Airplane Program 777x
Inventories [Line Items]
Deferred production costs	1,792	1,330
Unamortized tooling and other non-recurring costs	4,063	3,774
Inventory, work in process	4,638	4,059
Abnormal production costs	513	325
Airplane Program 787
Inventories [Line Items]
Deferred production costs	12,384	12,689
Unamortized tooling and other non-recurring costs	1,480	1,722
Deferred production, unamortized tooling and other nonrecurring costs to be recovered from firm orders at the balance sheet date	12,384
Deferred production, unamortized tooling and other nonrecurring costs to be recovered from future orders	1,480
Abnormal production costs	1,014	1,240	$ 468
Supplier advances	$ 1,764	$ 1,831