Condensed Consolidated Balance Sheets - USD ($) $ in Millions	Sep. 30, 2020	Dec. 31, 2019
Current Assets
Cash and cash equivalents	$ 26,939	$ 19,069
Marketable debt securities (Note 4)	9,962	4,174
Accounts and notes receivable, net	9,939	6,797
Inventories (Note 6)	10,934	10,398
Other current assets (Note 4; Note 10 at VIEs)	6,841	7,953
Total current assets	89,177	74,992
Non-current Assets
Equity in net assets of nonconsolidated affiliates (Note 8)	8,046	8,562
Property, net	36,989	38,750
Goodwill and intangible assets, net	5,245	5,337
Equipment on operating leases, net (Note 7; Note 10 at VIEs)	39,358	42,055
Deferred income taxes	23,970	24,640
Other assets (Note 4; Note 10 at VIEs)	6,695	7,346
Total non-current assets	150,494	153,045
Total Assets	239,671	228,037
Current Liabilities
Accounts payable (principally trade)	20,914	21,018
Accrued liabilities (Note 13)	23,916	26,487
Total current liabilities	80,603	84,905
Non-current Liabilities
Postretirement benefits other than pensions (Note 14)	5,746	5,935
Pensions (Note 14)	11,097	12,170
Other liabilities (Note 13)	12,424	13,146
Total non-current liabilities	111,060	97,175
Total Liabilities	191,663	182,080
Commitments and contingencies (Note 15)
Equity (Note 18)
Common stock, $0.01 par value	14	14
Additional paid-in capital	26,148	26,074
Retained earnings	29,134	26,860
Accumulated other comprehensive loss	(11,955)	(11,156)
Total stockholders’ equity	43,341	41,792
Noncontrolling interests	4,667	4,165
Total Equity	48,008	45,957
Total Liabilities and Equity	239,671	228,037
GM Financial [Member]
Current Assets
GM Financial receivables, net (Note 5; Note 10 at VIEs)	24,562	26,601
Non-current Assets
GM Financial receivables, net (Note 5; Note 10 at VIEs)	30,191	26,355
Current Liabilities
Short-term debt and current portion of long-term debt (Note 9 and Note 8 at VIEs)	33,502	35,503
Non-current Liabilities
Long-term debt (Note 9 and Note 8 at VIEs)	55,320	53,435
Automotive [Member]
Current Liabilities
Short-term debt and current portion of long-term debt (Note 9 and Note 8 at VIEs)	2,271	1,897
Non-current Liabilities
Long-term debt (Note 9 and Note 8 at VIEs)	$ 26,473	$ 12,489

Operating Lease, Right-of-use Asset, Noncurrent

No definition available.

Name:	gm_OperatingLeaseRightofuseAssetNoncurrent
Namespace Prefix:	gm_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).