Other Assets and Other Liabilities and Deferred Income (Details) - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021
Other Assets [Abstract]
Accrued interest and other non-finance receivables	$ 576	$ 584
Collateral held for resale, at net realizable value, and other inventory	233	258
Prepaid reinsurance premiums and other reinsurance recoverables	779	743
Deferred charges - income taxes	158	190
Property and equipment, net of accumulated depreciation	233	224
Restricted cash	127	128
Investment in non-consolidated affiliates	177	133
Operating Lease, Right-of-Use Asset	64	76
Other	229	188
Total other assets	2,576	2,524
Accumulated depreciation	415	397
Other Liabilities and Deferred Income [Abstract]
Unearned insurance premiums and fees	891	857
Interest payable	683	667
Taxes Payable	115	229
Operating Lease, Liability	66	78
Deferred revenue	22	62
Other	258	273
Other liabilities and deferred income	2,035	2,166
Related Party Transactions Income Taxes and Related Interest Payable	$ 36	$ 101
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration]
Operating Lease, Liability, Statement of Financial Position [Extensible List]