Segment Reporting and Geographic Information - Geographic Information (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	$ 12,766	$ 13,419	$ 13,831
Long-Lived Assets	32,842	38,081	40,003
Leased vehicles, net	32,701	37,929	39,800
U.S.
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	11,037	11,718	12,178
Long-Lived Assets	29,411	34,452	36,773
Non-US
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	1,729	1,701	1,653
Long-Lived Assets	$ 3,431	$ 3,629	$ 3,230