Segment Reporting (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Jun. 30, 2025	Mar. 31, 2025	Jun. 30, 2024	Mar. 31, 2024	Jun. 30, 2025	Jun. 30, 2024	Dec. 31, 2024
Segment Reporting Information [Line Items]
Net sales and revenue	$ 47,122		$ 47,969		$ 91,141	$ 90,983
Segment expenses and other items	(44,748)		(44,291)		(85,303)	(83,530)
Adjustments	663		761		689	857
Earnings (loss) before interest and taxes-adjusted	3,037		4,438		6,527	8,310
Adjustments	(663)		(761)		(689)	(857)
Net income (loss) attributable to noncontrolling interests	(1)		(57)		68	(83)
Income (loss) before income taxes	2,375		3,643		5,946	7,359
Income tax benefit (expense)	(481)		(767)		(1,199)	(1,529)
Net income (loss)	1,894	$ 2,853	2,877	$ 2,953	4,747	5,830
Net income (loss) attributable to stockholders	1,895		2,933		4,680	5,913
Equity in net assets of nonconsolidated affiliates	6,103		10,734		6,103	10,734	$ 7,102
Goodwill and intangibles	4,488		4,778		4,488	4,778	4,551
Total assets	289,384		282,956		289,384	282,956	$ 279,761
Expenditures for property	2,137		2,569		3,953	5,352
Depreciation and amortization	3,026		2,880		5,959	5,678
Impairment charges	18		605		18	605
Equity income (loss)	91		240		394	291
Operating Segments \| Cruise
Segment Reporting Information [Line Items]
Net sales and revenue	0		25		1	51
Segment expenses and other items	0		(1,066)		(274)	(1,534)
Adjustments	0		583		0	583
Earnings (loss) before interest and taxes-adjusted	0		(458)		(273)	(900)
Adjustments	0		(583)		0	(583)
Equity in net assets of nonconsolidated affiliates	0		0		0	0
Goodwill and intangibles	1		714		1	714
Total assets	441		3,882		441	3,882
Expenditures for property	0		(10)		2	2
Depreciation and amortization	0		7		5	12
Impairment charges	0		605		0	605
Equity income (loss)	0		0		0	0
Operating Segments \| GM Financial
Segment Reporting Information [Line Items]
Net sales and revenue	4,255		3,918		8,419	7,730
Segment expenses and other items	(3,551)		(3,096)		(7,030)	(6,171)
Adjustments	0		0		0	0
Earnings (loss) before interest and taxes-adjusted	704		822		1,389	1,559
Adjustments	0		0		0	0
Equity in net assets of nonconsolidated affiliates	1,257		1,675		1,257	1,675
Goodwill and intangibles	1,346		1,346		1,346	1,346
Total assets	142,893		135,902		142,893	135,902
Expenditures for property	6		6		10	10
Depreciation and amortization	1,243		1,192		2,456	2,445
Impairment charges	0		0		0	0
Equity income (loss)	16		14		28	45
Eliminations
Segment Reporting Information [Line Items]
Net sales and revenue	(2)		(35)		(7)	(69)
Segment expenses and other items	2		27		4	53
Adjustments	0		0		0	0
Earnings (loss) before interest and taxes-adjusted	0		(8)		(4)	(16)
Adjustments	0		0		0	0
Equity in net assets of nonconsolidated affiliates	0		0		0	0
Goodwill and intangibles	0		0		0	0
Total assets	(1,335)		(3,972)		(1,335)	(3,972)
Expenditures for property	0		35		0	73
Depreciation and amortization	0		0		0	0
Impairment charges	0		0		0	0
Equity income (loss)	0		0		0	0
Automotive
Segment Reporting Information [Line Items]
Automotive interest income	200		229		391	414
Automotive interest expense	(198)		(206)		(350)	(425)
Automotive \| Operating Segments
Segment Reporting Information [Line Items]
Net sales and revenue	42,869		44,060		82,729	83,272
Segment expenses and other items	(41,199)		(40,156)		(78,003)	(75,879)
Adjustments	663		178		689	274
Earnings (loss) before interest and taxes-adjusted	2,333		4,082		5,415	7,667
Adjustments	(663)		(178)		(689)	(274)
Equity in net assets of nonconsolidated affiliates	4,846		9,059		4,846	9,059
Goodwill and intangibles	3,141		2,717		3,141	2,717
Total assets	147,384		147,144		147,384	147,144
Expenditures for property	2,131		2,539		3,940	5,267
Depreciation and amortization	1,782		1,682		3,499	3,221
Impairment charges	18		0		18	0
Equity income (loss)	75		227		366	245
Automotive \| Operating Segments \| GMNA
Segment Reporting Information [Line Items]
Net sales and revenue	39,486		40,725		76,873	76,824
Segment expenses and other items	(37,466)		(36,367)		(71,567)	(68,722)
Adjustments	395		75		395	171
Earnings (loss) before interest and taxes-adjusted	2,415		4,433		5,702	8,273
Adjustments	(395)		(75)		(395)	(171)
Equity in net assets of nonconsolidated affiliates	3,109		3,357		3,109	3,357
Goodwill and intangibles	2,479		2,025		2,479	2,025
Total assets	161,262		163,099		161,262	163,099
Expenditures for property	2,014		2,461		3,719	5,091
Depreciation and amortization	1,642		1,515		3,230	2,924
Impairment charges	0		0		0	0
Equity income (loss)	12		330		255	457
Automotive \| Operating Segments \| GMI
Segment Reporting Information [Line Items]
Net sales and revenue	3,326		3,298		5,753	6,380
Segment expenses and other items	(3,382)		(3,351)		(5,779)	(6,443)
Adjustments	260		103		260	103
Earnings (loss) before interest and taxes-adjusted	204		50		234	40
Adjustments	(260)		(103)		(260)	(103)
Equity in net assets of nonconsolidated affiliates	1,511		5,701		1,511	5,701
Goodwill and intangibles	663		692		663	692
Total assets	23,418		25,867		23,418	25,867
Expenditures for property	89		74		182	167
Depreciation and amortization	131		147		233	272
Impairment charges	18		0		18	0
Equity income (loss)	77		(103)		125	(211)
Automotive \| Corporate
Segment Reporting Information [Line Items]
Net sales and revenue	57		37		103	68
Segment expenses and other items	(351)		(437)		(657)	(714)
Adjustments	8		0		34	0
Earnings (loss) before interest and taxes-adjusted	(286)		(401)		(520)	(645)
Adjustments	(8)		0		(34)	0
Equity in net assets of nonconsolidated affiliates	226		0		226	0
Goodwill and intangibles	0		0		0	0
Total assets	28,335		41,356		28,335	41,356
Expenditures for property	28		4		39	8
Depreciation and amortization	9		20		36	25
Impairment charges	0		0		0	0
Equity income (loss)	(14)		0		(14)	0
Automotive \| Eliminations
Segment Reporting Information [Line Items]
Net sales and revenue	0		0		0	0
Segment expenses and other items	0		0		0	0
Adjustments	0		0		0	0
Earnings (loss) before interest and taxes-adjusted	0		0		0	0
Adjustments	0		0		0	0
Equity in net assets of nonconsolidated affiliates	0		0		0	0
Goodwill and intangibles	0		0		0	0
Total assets	(65,630)		(83,178)		(65,630)	(83,178)
Expenditures for property	0		0		0	0
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.