Condensed Consolidated Statements Of Cash Flows - USD ($) $ in Millions	9 Months Ended
Sep. 30, 2018	Sep. 30, 2017
Net cash provided by operating activities - continuing operations	$ 5,308	$ 4,795
Net cash provided by operating activities - discontinued operations	0	243
Net cash provided by operating activities	5,308	5,038
Cash flows from investing activities
Purchases of retail finance receivables, net	(17,794)	(15,267)
Principal collections and recoveries on retail finance receivables	12,010	9,410
Net funding of commercial finance receivables	(886)	(1,557)
Purchases of leased vehicles, net	(13,051)	(14,809)
Proceeds from termination of leased vehicles	8,094	4,649
Other investing activities	(100)	(65)
Net cash used in investing activities - continuing operations	(11,727)	(17,639)
Net cash used in investing activities - discontinued operations	0	(468)
Net cash used in investing activities	(11,727)	(18,107)
Cash flows from financing activities
Net change in debt (original maturities less than three months)	1,563	(305)
Borrowings and issuances of secured debt	18,541	26,731
Payments on secured debt	(18,710)	(20,905)
Borrowings and issuances of unsecured debt	9,552	12,626
Payments on unsecured debt	(4,423)	(4,375)
Debt issuance costs	(118)	(131)
Proceeds from issuance of preferred stock	492	985
Dividends paid	(59)	0
Net cash provided by financing activities - continuing operations	6,838	14,626
Net cash provided by financing activities - discontinued operations	0	63
Net cash provided by financing activities	6,838	14,689
Net increase in cash, cash equivalents and restricted cash	419	1,620
Effect of foreign exchange rate changes on cash, cash equivalents and restricted cash	(56)	112
Cash, cash equivalents and restricted cash at beginning of period	6,567	5,302
Cash, cash equivalents and restricted cash at end of period	6,930	7,034
Supplemental Cash Flow Elements [Abstract]
Total	6,567	5,302
Continuing Operations [Member]
Cash flows from financing activities
Cash, cash equivalents and restricted cash at end of period	6,930	6,469
Supplemental Cash Flow Elements [Abstract]
Total	6,930	6,469
Discontinued Operations [Member]
Cash flows from financing activities
Cash, cash equivalents and restricted cash at end of period	0	565
Supplemental Cash Flow Elements [Abstract]
Total	$ 0	$ 565

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