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Supplemental Information for the Consolidated Statements of Cash Flows (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Accounts receivable	$ (1,341)	$ (563)	$ 492
Wholesale receivables funded by GM Financial, net	2,744	663	(2,606)
Inventories	(104)	(761)	399
Automotive equipment on operating leases	53	274	748
Change in other assets	68	(1,550)	(529)
Accounts payable	42	(492)	(537)
Income taxes payable	130	213	(75)
Accrued and other liabilities	(1,991)	(1,573)	732
Total	(399)	(3,789)	(1,376)
Cash paid for income taxes and interest
Cash paid for income taxes, net	719	689	660
Cash Paid for Interest (net of amounts capitalized)	3,958	4,214	3,597
Automotive
Cash paid for income taxes and interest
Cash Paid for Interest (net of amounts capitalized)	1,011	739	656
GM Financial
Cash paid for income taxes and interest
Cash Paid for Interest (net of amounts capitalized)	$ 2,947	$ 3,475	$ 2,941

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Cash Paid for Income Taxes and Interest.

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The amount of cash paid during the current period to foreign, federal, state, and local authorities as taxes on income, net of any cash received during the current period as refunds for the overpayment of taxes.

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