CONDENSED CONSOLIDATED STATEMENT OF CASH FLOWS - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016
Net Cash Provided by (Used in) Operating Activities, Continuing Operations [Abstract]
Net cash provided by/(used in) operating activities	$ 9,951	$ 11,891
Net Cash Provided by (Used in) Investing Activities, Continuing Operations [Abstract]
Capital spending	(3,264)	(3,206)
Acquisitions of finance receivables and operating leases	(27,379)	(27,501)
Collections of finance receivables and operating leases	21,636	19,732
Purchases of equity and debt securities	(16,931)	(16,757)
Sales and maturities of equity and debt securities	16,906	15,491
Settlements of derivatives	154	111
Other	16	21
Net cash provided by/(used in) investing activities	(8,862)	(12,109)
Net Cash Provided by (Used in) Financing Activities, Continuing Operations [Abstract]
Cash dividends	(1,392)	(2,184)
Purchases of common stock	(131)	(145)
Net changes in short-term debt	72	934
Proceeds from issuance of other debt	20,467	25,574
Principal payments on other debt	(19,952)	(21,104)
Other	(102)	(87)
Net cash provided by/(used in) financing activities	(1,038)	2,988
Effect of exchange rate changes on cash and cash equivalents	267	21
Cash and cash equivalents at January 1	15,905	14,272
Net increase/(decrease) in cash and cash equivalents	318	2,791
Cash and cash equivalents at June 30	$ 16,223	$ 17,063