Net Investments in Operating Leases (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Property Subject to or Available for Operating Lease [Line Items]
Vehicles, at cost	$ 24,182	$ 26,055
Accumulated depreciation	(3,850)	(4,234)
Net investment in operating leases before allowance for credit losses	20,332	21,821
Net investment in operating leases	20,332	21,821
Operating Leases, Future Minimum Payments Receivable	$ 6,672
Length of lease contract	60 months
Maximum payment extension	six months
Total payment extension	twelve months
Lessor, Operating Lease, Payments to be Received, Next Rolling Twelve Months	$ 3,298
Lessor, Operating Lease, Payment to be Received, Year Two	2,175
Lessor, Operating Lease, Payment to be Received, Year Three	996
Lessor, Operating Lease, Payment to be Received, Year Four	192
Lessor, Operating Lease, Payment to be Received, Year Five	11
Affiliated Entity [Member]
Property Subject to or Available for Operating Lease [Line Items]
Related Party Transaction, Deferred Interest Supplements and Residual Support Payments on Net Investment in Operating Leases	1,300	1,100
Related Party Transaction, Earned Interest Supplements and Residual Support Costs, Net Investment in Operating Lease	900	1,200	$ 1,900
Related Party Transactions, Cash Received and Interest Supplements, Net Investment in Operating Lease	$ 1,100	$ 700	$ 1,100