Finance Receivables - Finance Receivables, net (Details) - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Accounts, Notes, Loans and Financing Receivable [Line Items]
Less: allowance for loan losses	$ (2,096)	$ (1,886)
Finance receivables, net	74,514	62,979
Retail Finance Receivables
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total finance receivables	65,322	58,093
Less: allowance for loan losses	(2,062)	(1,839)	$ (1,915)	$ (866)
Finance receivables, net	63,260	56,254
Commercial Finance Receivables
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total finance receivables	11,288	6,772
Less: allowance for loan losses	(34)	(47)
Finance receivables, net	11,254	6,725
Dealer cash management balances	1,900	1,000
Level 2
Accounts, Notes, Loans and Financing Receivable [Line Items]
Fair value utilizing inputs	11,254	6,725
Level 3
Accounts, Notes, Loans and Financing Receivable [Line Items]
Fair value utilizing inputs	$ 62,150	$ 57,613