v3.3.0.814

Segment Reporting (Details) - USD ($) $ in Millions	3 Months Ended					9 Months Ended			18 Months Ended
	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Sep. 30, 2014	Jun. 30, 2014	Sep. 30, 2015	Dec. 31, 2014	Sep. 30, 2014	Sep. 30, 2015
Segment Reporting Information [Line Items]
Net sales and revenue	$ 38,843			$ 39,255		$ 112,735		$ 116,312
Income (loss) before automotive interest and taxes-adjusted	3,096			2,263		8,049		4,080
Adjustments	(1,500)			(321)		(3,157)		(2,027)
Gain on extinguishment of debt	0			2		0		2
Income before income taxes	1,506			1,869		4,660		1,958
Income tax benefit (expense)	(165)			(427)		(1,271)		51
Net (income) loss attributable to noncontrolling interests	18			29		32		(47)
Net income attributable to stockholders	1,359			1,471		3,421		1,962
Total assets	189,000			176,908		189,000	$ 177,677	176,908	$ 189,000
Depreciation, amortization and impairment of long lived assets and finite lived intangible assets	1,981			1,870		5,908		5,296
Ignition switch recall compensation program [Member]
Segment Reporting Information [Line Items]
Charge related to ignition switch recall compensation program		$ 75	$ 150		$ 400	225	$ 400		625
Automotive [Member]
Segment Reporting Information [Line Items]
Automotive interest income	40			50		130		155
Automotive interest expense	(112)			(96)		(330)		(299)
Group [Member] | Automotive [Member] | Operating segments [Member]
Segment Reporting Information [Line Items]
Net sales and revenue	37,140			37,999		108,174		112,776
Income (loss) before automotive interest and taxes-adjusted	2,867			2,059		7,386		3,399
Adjustments	(1,500)			(324)		(3,157)		(2,038)
Total assets	131,260			135,279		131,260		135,279	131,260
Depreciation, amortization and impairment of long lived assets and finite lived intangible assets	1,324			1,622		4,412		4,673
Group [Member] | Automotive [Member] | Operating segments [Member] | GMNA [Member]
Segment Reporting Information [Line Items]
Net sales and revenue	27,794			25,816		78,951		75,891
Income (loss) before automotive interest and taxes-adjusted	3,293			2,452		8,255		4,394
Adjustments	7			(132)		36		(1,006)
Total assets	94,744			96,668		94,744		96,668	94,744
Depreciation, amortization and impairment of long lived assets and finite lived intangible assets	1,009			1,023		3,143		3,336
Flood damage charges				132				132
Net insurance recoveries related to flood damage						36
Group [Member] | Automotive [Member] | Operating segments [Member] | GMNA [Member] | Warranty obligations [Member]
Segment Reporting Information [Line Items]
Catch-up adjustment, change in estimate for recall campaigns								874
Group [Member] | Automotive [Member] | Operating segments [Member] | GME [Member]
Segment Reporting Information [Line Items]
Net sales and revenue	4,556			5,226		13,992		16,820
Income (loss) before automotive interest and taxes-adjusted	(231)			(387)		(515)		(976)
Adjustments	0			(194)		(354)		(194)
Total assets	10,531			11,463		10,531		11,463	10,531
Depreciation, amortization and impairment of long lived assets and finite lived intangible assets	139			282		378		506
Group [Member] | Automotive [Member] | Operating segments [Member] | GME [Member] | Change of business model in Russia [Member]
Segment Reporting Information [Line Items]
Cost related to business withdrawal						354
Group [Member] | Automotive [Member] | Operating segments [Member] | GME [Member] | Russian Federation
Segment Reporting Information [Line Items]
Asset impairment charges				194				194
Group [Member] | Automotive [Member] | Operating segments [Member] | GMIO [Member]
Segment Reporting Information [Line Items]
Net sales and revenue	3,016			3,716		9,181		10,548
Income (loss) before automotive interest and taxes-adjusted	269			259		989		826
Adjustments	(7)			2		(394)		(19)
Total assets	21,324			21,797		21,324		21,797	21,324
Depreciation, amortization and impairment of long lived assets and finite lived intangible assets	117			206		643		482
Group [Member] | Automotive [Member] | Operating segments [Member] | GMIO [Member] | Change of business model in Russia [Member]
Segment Reporting Information [Line Items]
Cost related to business withdrawal						96
Group [Member] | Automotive [Member] | Operating segments [Member] | GMIO [Member] | Thailand
Segment Reporting Information [Line Items]
Tangible asset impairment charges						297
Group [Member] | Automotive [Member] | Operating segments [Member] | GMSA [Member]
Segment Reporting Information [Line Items]
Net sales and revenue	1,738			3,202		5,939		9,404
Income (loss) before automotive interest and taxes-adjusted	(217)			(32)		(575)		(269)
Adjustments	0			0		(720)		(419)
Total assets	7,708			10,933		7,708		10,933	7,708
Depreciation, amortization and impairment of long lived assets and finite lived intangible assets	56			92		239		297
Group [Member] | Automotive [Member] | Operating segments [Member] | GMSA [Member] | Venezuela
Segment Reporting Information [Line Items]
Tangible asset impairment charges						116
Charge for foreign currency devaluation						604		419
Group [Member] | Automotive [Member] | Corporate [Member]
Segment Reporting Information [Line Items]
Net sales and revenue	36			39		111		113
Income (loss) before automotive interest and taxes-adjusted	(247)			(233)		(768)		(576)
Adjustments	(1,500)			0		(1,725)		(400)
Total assets	21,718			29,417		21,718		29,417	21,718
Depreciation, amortization and impairment of long lived assets and finite lived intangible assets	4			20		12		55
Group [Member] | Automotive [Member] | Corporate [Member] | Ignition switch recall compensation program [Member]
Segment Reporting Information [Line Items]
Charge related to ignition switch recall compensation program						225		400
Group [Member] | Automotive [Member] | Corporate [Member] | Ignition Switch Recall Litigations [Member]
Segment Reporting Information [Line Items]
Loss in period	1,500					1,500
Group [Member] | Automotive [Member] | Eliminations [Member]
Segment Reporting Information [Line Items]
Total assets	(24,765)			(34,999)		(24,765)		(34,999)	(24,765)
Depreciation, amortization and impairment of long lived assets and finite lived intangible assets	(1)			(1)		(3)		(3)
Group [Member] | GM Financial [Member] | Operating segments [Member] | GM Financial segment [Member]
Segment Reporting Information [Line Items]
Net sales and revenue	1,707			1,261		4,576		3,549
Income (loss) before automotive interest and taxes-adjusted	231			205		670		684
Adjustments	0			3		0		11
Total assets	59,692			43,762		59,692		43,762	59,692
Depreciation, amortization and impairment of long lived assets and finite lived intangible assets	657			248		1,496		623
Eliminations [Member]
Segment Reporting Information [Line Items]
Net sales and revenue	(4)			(5)		(15)		(13)
Income (loss) before automotive interest and taxes-adjusted	(2)			(1)		(7)		(3)
Adjustments	0			0		0		0
Total assets	(1,952)			(2,133)		(1,952)		(2,133)	$ (1,952)
Depreciation, amortization and impairment of long lived assets and finite lived intangible assets	$ 0			$ 0		$ 0		$ 0

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