EARNINGS PER SHARE (EPS) (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Numerator for EPS:
Income (Loss) from Continuing Operations	$ 1,110	$ 1,934	$ 2,321	$ 1,778
Less:
Net income (loss) from continuing operations attributable to noncontrolling interests	(12)	11	14	(9)
Net income (loss) attributable to AIG common shareholders from continuing operations	1,122	1,923	2,307	1,787
Income (loss) from discontinued operations, net of income tax	8	(10)	8	(57)
Net income (loss) attributable to AIG common shareholders	$ 1,130	$ 1,913	$ 2,315	$ 1,730
Denominator for EPS:
Weighted average shares outstanding - basic	925,751,084	1,113,587,927	953,109,915	1,135,068,193
Dilutive shares	22,497,687	26,458,046	23,517,737	28,021,555
Weighted average shares outstanding - diluted	948,248,771	1,140,045,973	976,627,652	1,163,089,748
Basic:
Income (loss) from continuing operations	$ 1.21	$ 1.73	$ 2.42	$ 1.57
Income (loss) from discontinued operations	0.01	(0.01)	0.01	(0.05)
Net income (loss) attributable to AIG	1.22	1.72	2.43	1.52
Diluted:
Income (loss) from continuing operations	1.18	1.69	2.36	1.54
Income (loss) from discontinued operations	0.01	(0.01)	0.01	(0.05)
Net Income (loss) attributable to AIG	$ 1.19	$ 1.68	$ 2.37	$ 1.49
Number of shares, warrants, and options excluded from diluted shares outstanding because the effect would have been anti-dilutive	1,900,000	100,000	1,800,000	300,000