Other Assets and Other Liabilities and Deferred Income (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2017	Jan. 01, 2017	Dec. 31, 2016
Other Assets [Abstract]
Accrued interest and other non-finance receivables	$ 917		$ 889
Prepaid reinsurance premiums and other reinsurance receivables	563		546
Collateral held for resale, at net realizable value	530		621
Property and equipment, net of accumulated depreciation	161		156
Investment in non-consolidated affiliates	165		153
Deferred charges - income taxes	205		205
Restricted cash	89		108
Deferred charges	125		122
Other	30		22
Total other assets	2,785		2,822
Accumulated depreciation	353		347
Other Liabilities and Deferred Income [Abstract]
Unearned insurance premiums and fees	668		650
Interest payable	526		661
Income tax and related interest	295		294
Deferred revenue	153		143
Payroll and employee benefits	40		51
Other	216		198
Total other liabilities and deferred income	1,898		1,997
Deferred Revenue, Admission Fees	130	$ 120	$ 120
Admission Fee Revenue	$ 7