Guarantees (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023
Guarantor Obligations and Product Warranty [Line Items]
Balance as of January 1	$ 1,091	$ 1,109
Warranties and performance guarantees issued	65	69
Settlements	(71)	(84)
Other	(1)	(1)
Balance as of March 31	1,084	$ 1,093
Commercial Aerospace Financing Arrangements
Guarantor Obligations and Product Warranty [Line Items]
Maximum Potential Payment	286		$ 288
Carrying Amount of Liability	0		0
Third Party Guarantees
Guarantor Obligations and Product Warranty [Line Items]
Maximum Potential Payment	365		386
Carrying Amount of Liability	1		1
Commercial Aerospace [Member]
Guarantor Obligations and Product Warranty [Line Items]
Partner Share of Guarantor Obligations, Maximum Exposure, Undiscounted	134		135
Guarantee Type, Other
Guarantor Obligations and Product Warranty [Line Items]
Carrying Amount of Liability	$ 94		$ 97