Segment Reporting (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Jun. 30, 2022	Mar. 31, 2022	Jun. 30, 2021	Mar. 31, 2021	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021
Segment Reporting Information [Line Items]
Net sales and revenue	$ 35,759		$ 34,167		$ 71,738	$ 66,641
Earnings (loss) before interest and taxes-adjusted	2,343		4,117		6,387	8,534
Adjustments	0		(99)		(957)	(99)
Net income (loss) attributable to noncontrolling interests	(50)		(57)		(181)	(65)
Income (loss) before income taxes	2,132		3,750		4,912	7,941
Income tax benefit (expense)	(490)		(971)		(462)	(2,148)
Net income (loss)	1,642	$ 2,807	2,779	$ 3,014	4,449	5,793
Net income (loss) attributable to stockholders	1,692		2,836		4,631	5,858
Equity in net assets of nonconsolidated affiliates	9,733		8,882		9,733	8,882	$ 9,677
Goodwill and intangible assets, net	5,013		5,169		5,013	5,169	5,087
Total assets	253,517		241,803		253,517	241,803	$ 244,718
Depreciation and amortization	2,844		3,014		5,735	6,029
Impairment charges	11		4		11	4
Equity income (loss)	(45)		327		247	692
Automotive
Segment Reporting Information [Line Items]
Automotive interest income	73		32		123	64
Automotive interest expense	(234)		(243)		(460)	(493)
Operating Segments \| Automotive
Segment Reporting Information [Line Items]
Net sales and revenue	32,614		30,745		65,437	59,807
Earnings (loss) before interest and taxes-adjusted	1,778		2,871		4,859	6,343
Adjustments	0		(99)		100	(99)
Equity in net assets of nonconsolidated affiliates	7,972		7,178		7,972	7,178
Goodwill and intangible assets, net	2,945		3,081		2,945	3,081
Total assets	131,815		122,709		131,815	122,709
Depreciation and amortization	1,613		1,422		3,256	2,758
Impairment charges	11		0		11	0
Equity income (loss)	(95)		277		144	588
Operating Segments \| GMNA \| Automotive
Segment Reporting Information [Line Items]
Net sales and revenue	28,760		27,932		58,216	53,889
Earnings (loss) before interest and taxes-adjusted	2,299		2,894		5,440	6,028
Adjustments	0		(17)		100	(17)
Equity in net assets of nonconsolidated affiliates	1,416		482		1,416	482
Goodwill and intangible assets, net	2,187		2,292		2,187	2,292
Total assets	127,964		115,220		127,964	115,220
Depreciation and amortization	1,476		1,281		2,980	2,479
Impairment charges	11		0		11	0
Equity income (loss)	(6)		3		0	7
Operating Segments \| GMI \| Automotive
Segment Reporting Information [Line Items]
Net sales and revenue	3,807		2,792		7,120	5,878
Earnings (loss) before interest and taxes-adjusted	209		15		537	323
Adjustments	0		(82)		0	(82)
Equity in net assets of nonconsolidated affiliates	6,556		6,696		6,556	6,696
Goodwill and intangible assets, net	754		789		754	789
Total assets	24,867		22,203		24,867	22,203
Depreciation and amortization	131		137		265	269
Impairment charges	0		0		0	0
Equity income (loss)	(89)		274		143	581
Operating Segments \| Cruise
Segment Reporting Information [Line Items]
Net sales and revenue	25		25		51	55
Earnings (loss) before interest and taxes-adjusted	(543)		(332)		(868)	(561)
Adjustments	0		0		(1,057)	0
Equity in net assets of nonconsolidated affiliates	0		0		0	0
Goodwill and intangible assets, net	727		743		727	743
Total assets	6,049		5,204		6,049	5,204
Depreciation and amortization	12		13		25	24
Impairment charges	0		4		0	4
Equity income (loss)	0		0		0	0
Operating Segments \| GM Financial
Segment Reporting Information [Line Items]
Net sales and revenue	3,146		3,426		6,302	6,833
Earnings (loss) before interest and taxes-adjusted	1,106		1,581		2,390	2,763
Adjustments	0		0		0	0
Equity in net assets of nonconsolidated affiliates	1,760		1,704		1,760	1,704
Goodwill and intangible assets, net	1,341		1,345		1,341	1,345
Total assets	116,807		115,346		116,807	115,346
Depreciation and amortization	1,218		1,579		2,454	3,247
Impairment charges	0		0		0	0
Equity income (loss)	50		50		104	104
Corporate \| Automotive
Segment Reporting Information [Line Items]
Net sales and revenue	47		21		100	40
Earnings (loss) before interest and taxes-adjusted	(731)		(38)		(1,118)	(8)
Adjustments	0		0		0	0
Equity in net assets of nonconsolidated affiliates	0		0		0	0
Goodwill and intangible assets, net	4		0		4	0
Total assets	34,030		37,424		34,030	37,424
Depreciation and amortization	6		4		11	10
Impairment charges	0		0		0	0
Equity income (loss)	0		0		0	0
Eliminations
Segment Reporting Information [Line Items]
Net sales and revenue	(26)		(29)		(52)	(54)
Earnings (loss) before interest and taxes-adjusted	3		(3)		6	(11)
Adjustments	0		0		0	0
Equity in net assets of nonconsolidated affiliates	0		0		0	0
Goodwill and intangible assets, net	0		0		0	0
Total assets	(1,154)		(1,456)		(1,154)	(1,456)
Depreciation and amortization	0		0		0	0
Impairment charges	0		0		0	0
Equity income (loss)	0		0		0	0
Eliminations \| Automotive
Segment Reporting Information [Line Items]
Equity in net assets of nonconsolidated affiliates	0		0		0	0
Goodwill and intangible assets, net	0		0		0	0
Total assets	(55,045)		(52,138)		(55,045)	(52,138)
Depreciation and amortization	0		0		0	0
Impairment charges	0		0		0	0
Equity income (loss)	$ 0		$ 0		$ 0	$ 0

Earnings or loss from continuing operations attributable to the economic entity which may also be defined as revenue less expenses from ongoing operations, after income or loss from equity method investment and net of income or loss attributable to noncontrolling interest, but before adjustments that are not considered part of our core operations, automotive interest expense, corporate interest income, gain or loss on extinguishment of debt and income tax expense or benefit.

No definition available.