Leased Vehicles - Summary of Leased Vehicles (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2022
Lessor Disclosure [Abstract]
Leased vehicles	$ 44,867		$ 46,069
Manufacturer subvention	(4,876)		(5,150)
Net capitalized cost	39,991		40,919
Less: accumulated depreciation	(8,143)		(8,218)
Leased vehicles, net	31,848		$ 32,701
Depreciation expense	$ 1,200	$ 1,200