QUARTERLY FINANCIAL INFORMATION (UNAUDITED) (Details - Consolidated Statements of Income (Loss)) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
QUARTERLY FINANCIAL INFORMATION (UNAUDITED)
Revenues	$ 13,831	$ 12,822	$ 15,699	$ 15,975	$ 15,410	$ 16,697	$ 16,136	$ 16,163	$ 58,327	$ 64,406	$ 68,874
Income (loss) from continuing operations before income tax expense (benefit)	(2,932)	(115)	2,552	3,776	729	3,019	4,480	2,273	3,281	10,501	9,368
Income (loss) from discontinued operations, net of income tax expense	0	(17)	16	1	(35)	2	30	(47)	0	(50)	84
Net income (loss)	(1,849)	(197)	1,791	2,477	675	2,201	3,036	1,612	2,222	7,524	9,092
Net income (loss) from continuing operations attributable to noncontrolling interests	(8)	34	(9)	9	20	9	(37)	3	26	(5)	7
Net income (loss) attributable to AIG	$ (1,841)	$ (231)	$ 1,800	$ 2,468	$ 655	$ 2,192	$ 3,073	$ 1,609	$ 2,196	$ 7,529	$ 9,085
Basic and diluted:
Income from continuing operations	$ (1.5)	$ (0.17)	$ 1.34	$ 1.81	$ 0.5	$ 1.54	$ 2.11	$ 1.13	$ 1.69	$ 5.31	$ 6.11
Income (loss) from discontinued operations - basic (in dollars per share)	0	(0.01)	0.01	0	(0.03)	0	0.02	(0.03)	0	(0.04)	0.05
Income from continuing operations	(1.5)	(0.17)	1.31	1.78	0.49	1.52	2.08	1.12	1.65	5.24	6.08
Income (loss) from discontinued operations	$ 0	$ (0.01)	$ 0.01	$ 0	$ (0.03)	$ 0	$ 0.02	$ (0.03)	$ 0	$ (0.04)	$ 0.05
Weighted average shares outstanding:
Basic	1,226,880,632	1,279,072,748	1,329,157,366	1,365,951,690	1,391,790,420	1,419,239,774	1,442,397,111	1,459,249,393	1,299,825,350	1,427,959,799	1,474,171,690
Diluted	1,226,880,632	1,279,072,748	1,365,390,431	1,386,263,549	1,412,162,456	1,442,067,842	1,464,676,330	1,472,510,813	1,334,464,883	1,447,553,652	1,481,206,797
Noteworthy quarterly items income (expense):
Other-than-temporary impairments	$ (106)	$ (273)	$ (164)	$ (128)	$ (83)	$ (50)	$ (55)	$ (59)	$ 591	$ 217	$ 187
Net (gain) loss on sale of divested businesses	1	3	1	6	(1)	(18)	(2,174)	(4)	(11)	2,197	(48)
Federal and foreign valuation allowance for deferred tax assets	49	8	(40)	93	20	21	75	65	0
Loss on extinguishment of debt	0	(346)	(342)	(68)	(1,268)	(742)	(34)	(238)	(756)	(2,282)	(651)
Restructuring and other costs	222	274
Reserve strengthening charges	3,587	191	317	24					4,119	703	557
Adjustment
QUARTERLY FINANCIAL INFORMATION (UNAUDITED)
Income (loss) from continuing operations before income tax expense (benefit)	(308)								(376)
Net income (loss) attributable to AIG	(193)	$ (36)	$ 15	$ (16)	$ 25	$ (61)	$ 13	$ (28)	(156)	$ (51)	$ 78
Investments:
Operating Income Loss	$ (122)								$ (235)