Inventories - Narrative (Details) $ in Millions	6 Months Ended
	Jun. 30, 2023 USD ($) aircraft	Jun. 30, 2022 USD ($)	Dec. 31, 2022 USD ($) aircraft
Early Issue Sales Consideration
Inventory [Line Items]
Inventory subject to uncertainty	$ 3,625		$ 3,586
Airplane Program 737
Inventory [Line Items]
Number of commercial aircraft program | aircraft	220		250
Deferred production costs	$ 4,739		$ 2,955
Unamortized tooling and other non-recurring costs	591		$ 626
Deferred production, unamortized tooling and other nonrecurring costs to be recovered from firm orders at the balance sheet date	5,297
Deferred production, unamortized tooling and other nonrecurring costs to be recovered from future orders	$ 33
Airplane Program 787
Inventory [Line Items]
Number of commercial aircraft program | aircraft	85		100
Deferred production costs	$ 12,193		$ 12,689
Unamortized tooling and other non-recurring costs	1,600		1,722
Deferred production, unamortized tooling and other nonrecurring costs to be recovered from firm orders at the balance sheet date	11,823
Deferred production, unamortized tooling and other nonrecurring costs to be recovered from future orders	1,970
Abnormal production costs	693	$ 595
Supplier advances	1,765		1,831
Airplane Program 777x
Inventory [Line Items]
Deferred production costs	1,385		1,330
Unamortized tooling and other non-recurring costs	3,868		3,774
Inventory, work in process	4,226		$ 4,059
Abnormal production costs	$ 262	$ 102