EARNINGS PER SHARE (EPS) (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Numerator for EPS:
Income (Loss) from Continuing Operations	$ 1,211	$ (156)
Less:
Net income (loss) from continuing operations attributable to noncontrolling interests	26	(20)
Net income (loss) attributable to AIG common shareholders from continuing operations	1,185	(136)
Income (loss) from discontinued operations, net of income tax	0	(47)
Net income (loss) attributable to AIG common shareholders	$ 1,185	$ (183)
Denominator for EPS:
Weighted average shares outstanding - basic	980,777,243	1,156,548,459
Dilutive shares	24,537,787	0
Weighted average shares outstanding - diluted	1,005,315,030	1,156,548,459
Basic:
Income (loss) from continuing operations	$ 1.21	$ (0.12)
Income (loss) from discontinued operations	0	(0.04)
Net income (loss) attributable to AIG	1.21	(0.16)
Diluted:
Income (loss) from continuing operations	1.18	(0.12)
Income (loss) from discontinued operations	0	(0.04)
Net Income (loss) attributable to AIG	$ 1.18	$ (0.16)
Number of shares, warrants, and options excluded from diluted shares outstanding because the effect would have been anti-dilutive	1,800,000	600,000