Condensed Consolidated Statements Of Cash Flows - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
Net cash provided by operating activities - continuing operations	$ 4,795	$ 3,566
Net cash provided by operating activities - discontinued operations	243	290
Net cash provided by operating activities	5,038	3,856
Cash flows from investing activities
Purchases of retail finance receivables, net	(15,267)	(10,408)
Principal collections and recoveries on retail finance receivables	9,410	7,368
Net funding of commercial finance receivables	(1,557)	(1,145)
Purchases of leased vehicles, net	(14,809)	(14,939)
Proceeds from termination of leased vehicles	4,649	1,799
Other investing activities	(65)	(59)
Net cash used in investing activities - continuing operations	(17,639)	(17,384)
Net cash used in investing activities - discontinued operations	(468)	(949)
Net cash used in investing activities	(18,107)	(18,333)
Cash flows from financing activities
Net change in debt (original maturities less than three months)	(305)	(301)
Borrowings and issuance of secured debt	26,731	18,420
Payments on secured debt	(20,905)	(12,525)
Borrowings and issuance of unsecured debt	12,626	10,358
Payments on unsecured debt	(4,375)	(2,345)
Debt issuance costs	(131)	(112)
Proceeds from issuance of preferred stock	985	0
Net cash provided by financing activities - continuing operations	14,626	13,495
Net cash provided by financing activities - discontinued operations	63	601
Net cash provided by financing activities	14,689	14,096
Net increase (decrease) in cash, cash equivalents and restricted cash	1,620	(381)
Effect of foreign exchange rate changes on cash, cash equivalents and restricted cash	112	22
Cash, cash equivalents and restricted cash at beginning of period	5,302	5,002
Cash, cash equivalents and restricted cash at end of period	7,034	4,643
Supplemental Cash Flow Elements [Abstract]
Total	5,302	5,002
Continuing Operations [Member]
Cash flows from financing activities
Cash, cash equivalents and restricted cash at end of period	6,469	3,918
Supplemental Cash Flow Elements [Abstract]
Total	6,469	3,918
Discontinued Operations [Member]
Cash flows from financing activities
Cash, cash equivalents and restricted cash at end of period	565	725
Supplemental Cash Flow Elements [Abstract]
Total	$ 565	$ 725