Condensed Consolidated Statements Of Cash Flows - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Statement of Cash Flows [Abstract]
Net cash provided by operating activities	$ 1,158	$ 545
Cash flows from investing activities
Purchases of retail finance receivables, net	(4,165)	(4,065)
Principal collections and recoveries on retail finance receivables	3,271	2,814
Net funding of commercial finance receivables	(1,024)	54
Purchases of leased vehicles, net	(5,158)	(2,319)
Proceeds from termination of leased vehicles	481	185
Acquisition of international operations	0	(1,049)
Purchases of property and equipment	(20)	(17)
Change in restricted cash	(176)	(154)
Change in other assets	1	6
Net cash used in investing activities	(6,790)	(4,545)
Cash flows from financing activities
Net change in debt (original maturities less than three months)	757	198
Borrowings and issuance of secured debt	7,054	2,889
Payments on secured debt	(5,251)	(2,748)
Borrowings and issuance of unsecured debt	3,131	3,258
Payments on unsecured debt	(241)	(308)
Debt issuance costs	(26)	(41)
Net cash provided by financing activities	5,424	3,248
Net decrease in cash and cash equivalents	(208)	(752)
Effect of foreign exchange rate changes on cash and cash equivalents	45	(101)
Cash and cash equivalents at beginning of period	3,061	2,974
Cash and cash equivalents at end of period	2,898	2,121
Supplemental cash flow information
Subvention receivable from GM	436	252
Commercial loan funding payable to GM	435	425
Sale of equity interest in SAIC-GMAC	$ 0	$ 125