CONSOLIDATED STATEMENT OF CASH FLOWS - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
Net Cash Provided by (Used in) Operating Activities, Continuing Operations [Abstract]
Net income/(loss)	$ 3,815	$ (875)
Depreciation and tooling amortization	3,639	4,802
Other amortization	(715)	(590)
Provision for credit losses	(196)	779
Pension and other postretirement employee benefits (“OPEB”) expense/(income) (Note 13)	(808)	(454)
Equity investment dividends received in excess of (earnings)/losses	52	169
Foreign currency adjustments	222	113
Unrealized Gain (Loss) on Investments	(917)	8
Net (gain)/loss on changes in investments in affiliates (Note 4)	(332)	(3,480)
Stock compensation	183	107
Provision for deferred income taxes	345	655
Decrease/(Increase) in finance receivables (wholesale and other)	10,465	9,772
Decrease/(Increase) in accounts receivable and other assets	(905)	220
Decrease/(Increase) in inventory	(2,929)	66
Increase/(Decrease) in accounts payable and accrued and other liabilities	(6,438)	(2,485)
Other	(233)	(165)
Net cash provided by/(used in) operating activities	5,248	8,642
Net Cash Provided by (Used in) Investing Activities, Continuing Operations [Abstract]
Capital spending	(2,881)	(2,955)
Acquisitions of finance receivables and operating leases	(23,959)	(27,113)
Collections of finance receivables and operating leases	26,782	22,923
Proceeds from sale of business (Note 17)	144	1,340
Purchases of marketable securities and other investments	(17,593)	(19,624)
Sales and maturities of marketable securities and other investments	23,853	10,804
Settlements of derivatives	(205)	73
Other	37	337
Net cash provided by/(used in) investing activities	6,178	(14,215)
Net Cash Provided by (Used in) Financing Activities, Continuing Operations [Abstract]
Cash payments for dividends and dividend equivalents	(3)	(596)
Purchases of common stock	0	0
Net changes in short-term debt	890	(789)
Proceeds from issuance of long-term debt	11,688	44,303
Principal payments on long-term debt	(26,683)	(23,345)
Other	(90)	(182)
Net cash provided by/(used in) financing activities	(14,198)	19,391
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect [Abstract]
Effect of exchange rate changes on cash, cash equivalents, and restricted cash	(1)	(378)
Net increase/(decrease) in cash, cash equivalents, and restricted cash	(2,773)	13,440
Cash, cash equivalents, and restricted cash at beginning of period (Note 7)	25,935	17,741
Cash, cash equivalents, and restricted cash at end of period (Note 7)	$ 23,162	$ 31,181