EARNINGS PER SHARE (EPS) (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Numerator for EPS:
Income (loss) from continuing operations	$ (180)	$ 2,199	$ 4,071	$ 6,864
Less: Net income from continuing operations attributable to noncontrolling interests	34	9	34	(25)
Income (loss) attributable to AIG common shareholders from continuing operations	(214)	2,190	4,037	6,889
Income (loss) from discontinued operations, net of income tax expense	(17)	2	0	(15)
Net income (loss) attributable to AIG common shareholders	$ (231)	$ 2,192	$ 4,037	$ 6,874
Denominator for EPS:
Weighted average shares outstanding - basic	1,279,072,748	1,419,239,774	1,324,407,969	1,440,148,774
Dilutive shares	0	22,828,068	32,700,815	19,334,459
Weighted average shares outstanding - diluted	1,279,072,748	1,442,067,842	1,357,108,784	1,459,483,233
Basic:
Income (loss) from continuing operations	$ (0.17)	$ 1.54	$ 3.05	$ 4.78
Income (loss) from discontinued operations	(0.01)	0	0	(0.01)
Net Income (loss) attributable to AIG - basic (in dollars per share)	(0.18)	1.54	3.05	4.77
Diluted:
Income from continuing operations	(0.17)	1.52	2.97	4.72
Income (loss) from discontinued operations	(0.01)	0	0	(0.01)
Net Income (loss) attributable to AIG - diluted (in dollars per share)	$ (0.18)	$ 1.52	$ 2.97	$ 4.71
Basic and diluted:
Number of shares, warrants, and options excluded from diluted shares outstanding because the effect would have been anti-dilutive	100,000	300,000	200,000	300,000