Segment Reporting (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Jun. 30, 2023	Mar. 31, 2023	Jun. 30, 2022	Mar. 31, 2022	Jun. 30, 2023	Jun. 30, 2022	Dec. 31, 2022
Segment Reporting Information [Line Items]
Net sales and revenue	$ 44,746		$ 35,759		$ 84,732	$ 71,738
Earnings (loss) before interest and taxes-adjusted	3,234		2,343		7,037	6,387
Adjustments	(170)		0		(1,144)	(957)
Net income (loss) attributable to noncontrolling interest	(59)		(50)		(109)	(181)
Income (loss) before income taxes	3,029		2,132		5,803	4,912
Income tax benefit (expense)	(522)		(490)		(950)	(462)
Net income (loss)	2,507	$ 2,346	1,642	$ 2,807	4,853	4,449
Net income (loss) attributable to stockholders	2,566		1,692		4,962	4,631
Equity in net assets of nonconsolidated affiliates	10,064		9,733		10,064	9,733	$ 10,176
Goodwill and intangible assets, net	4,950		5,013		4,950	5,013	4,945
Total assets	275,833		253,517		275,833	253,517	$ 264,037
Depreciation and amortization	2,936		2,844		5,746	5,735
Impairment charges	0		11		0	11
Equity income (loss)	145		(45)		220	247
Automotive
Segment Reporting Information [Line Items]
Automotive interest income	251		73		479	123
Automotive interest expense	(226)		(234)		(460)	(460)
Operating Segments \| Automotive
Segment Reporting Information [Line Items]
Net sales and revenue	41,254		32,614		77,900	65,437
Earnings (loss) before interest and taxes-adjusted	3,083		1,778		6,678	4,859
Adjustments	(170)		0		(1,144)	100
Equity in net assets of nonconsolidated affiliates	8,397		7,972		8,397	7,972
Goodwill and intangible assets, net	2,869		2,945		2,869	2,945
Total assets	145,572		131,815		145,572	131,815
Depreciation and amortization	1,680		1,613		3,235	3,256
Impairment charges	0		11		0	11
Equity income (loss)	108		(95)		142	144
Operating Segments \| GMNA \| Automotive
Segment Reporting Information [Line Items]
Net sales and revenue	37,220		28,760		70,108	58,216
Earnings (loss) before interest and taxes-adjusted	3,194		2,299		6,769	5,440
Adjustments	(246)		0		(1,220)	100
Equity in net assets of nonconsolidated affiliates	2,256		1,416		2,256	1,416
Goodwill and intangible assets, net	2,141		2,187		2,141	2,187
Total assets	150,624		127,964		150,624	127,964
Depreciation and amortization	1,531		1,476		2,959	2,980
Impairment charges	0		11		0	11
Equity income (loss)	31		(6)		(15)	0
Operating Segments \| GMI \| Automotive
Segment Reporting Information [Line Items]
Net sales and revenue	3,955		3,807		7,682	7,120
Earnings (loss) before interest and taxes-adjusted	236		209		583	537
Adjustments	76		0		76	0
Equity in net assets of nonconsolidated affiliates	6,142		6,556		6,142	6,556
Goodwill and intangible assets, net	724		754		724	754
Total assets	24,509		24,867		24,509	24,867
Depreciation and amortization	144		131		266	265
Impairment charges	0		0		0	0
Equity income (loss)	77		(89)		157	143
Operating Segments \| Cruise
Segment Reporting Information [Line Items]
Net sales and revenue	26		25		51	51
Earnings (loss) before interest and taxes-adjusted	(611)		(543)		(1,172)	(868)
Adjustments	0		0		0	(1,057)
Equity in net assets of nonconsolidated affiliates	0		0		0	0
Goodwill and intangible assets, net	727		727		727	727
Total assets	5,089		6,049		5,089	6,049
Depreciation and amortization	10		12		15	25
Impairment charges	0		0		0	0
Equity income (loss)	0		0		0	0
Operating Segments \| GM Financial
Segment Reporting Information [Line Items]
Net sales and revenue	3,498		3,146		6,841	6,302
Earnings (loss) before interest and taxes-adjusted	766		1,106		1,537	2,390
Adjustments	0		0		0	0
Equity in net assets of nonconsolidated affiliates	1,667		1,760		1,667	1,760
Goodwill and intangible assets, net	1,354		1,341		1,354	1,341
Total assets	127,175		116,807		127,175	116,807
Depreciation and amortization	1,245		1,218		2,496	2,454
Impairment charges	0		0		0	0
Equity income (loss)	37		50		78	104
Corporate \| Automotive
Segment Reporting Information [Line Items]
Net sales and revenue	79		47		110	100
Earnings (loss) before interest and taxes-adjusted	(347)		(731)		(674)	(1,118)
Adjustments	0		0		0	0
Equity in net assets of nonconsolidated affiliates	0		0		0	0
Goodwill and intangible assets, net	4		4		4	4
Total assets	44,892		34,030		44,892	34,030
Depreciation and amortization	5		6		10	11
Impairment charges	0		0		0	0
Equity income (loss)	0		0		0	0
Eliminations
Segment Reporting Information [Line Items]
Net sales and revenue	(31)		(26)		(60)	(52)
Earnings (loss) before interest and taxes-adjusted	(4)		3		(6)	6
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	(2,003)		(1,154)		(2,003)	(1,154)
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	(74,453)		(55,045)		(74,453)	(55,045)
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.