QUARTERLY FINANCIAL INFORMATION (UNAUDITED) (Details) (USD $) In Millions, except Share data, unless otherwise specified	1 Months Ended	3 Months Ended								12 Months Ended
	Nov. 30, 2011	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
QUARTERLY FINANCIAL INFORMATION (UNAUDITED)
Revenues		$ 17,346	$ 15,944	$ 18,426	$ 16,962	$ 17,169	$ 17,865	$ 17,338	$ 18,649	$ 68,678	$ 71,021	$ 65,105
Income (loss) from continuing operations before income tax expense (benefit)		2,150	1,178	3,165	2,875	(6,039)	2,595	1,751	4,584	9,368	2,891	(901)
Income (loss) from discontinued operations, net of income tax expense (benefit)		11	(18)	18	73	(8)	1	(5)	13	84	1	2,467
Net income (loss)		1,973	2,130	2,758	2,231	(3,949)	1,861	2,339	3,449	9,092	3,700	21,330
Net income (loss) from continuing operations attributable to noncontrolling interests:
Nonvoting, callable, junior and senior preferred interests									208		208	634
Other		(5)	(40)	27	25	9	5	7	33	7	54	55
Total net income (loss) attributable to noncontrolling interests		(5)	(40)	27	25	9	5	7	241	7	262	708
Net income (loss) attributable to AIG		1,978	2,170	2,731	2,206	(3,958)	1,856	2,332	3,208	9,085	3,438	20,622
Basic and diluted:
Income (loss) from continuing operations - basic (in dollars per share)		$ 1.34	$ 1.48	$ 1.84	$ 1.44	$ (2.68)	$ 1.13	$ 1.33	$ 1.70	$ 6.11	$ 2.04	$ 9.65
Income (loss) from discontinued operations - basic (in dollars per share)		$ 0.01	$ (0.01)	$ 0.01	$ 0.05				$ 0.01	$ 0.05		$ 1.36
Income (loss) from continuing operations - diluted (in dollars per share)		$ 1.33	$ 1.47	$ 1.83	$ 1.44	$ (2.68)	$ 1.13	$ 1.33	$ 1.70	$ 6.08	$ 2.04	$ 9.65
Income (loss) from discontinued operations - diluted (in dollars per share)		$ 0.01	$ (0.01)	$ 0.01	$ 0.05				$ 0.01	$ 0.05		$ 1.36
Weighted average shares outstanding:
Basic (in shares)		1,468,725,573	1,475,053,126	1,476,512,720	1,476,471,097	1,476,457,586	1,642,472,814	1,756,689,067	1,875,972,970	1,474,171,690	1,687,197,038	1,799,385,757
Diluted (in shares)		1,480,654,482	1,485,322,858	1,482,246,618	1,476,678,931	1,476,457,586	1,642,502,251	1,756,714,475	1,876,002,775	1,481,206,797	1,687,226,641	1,799,458,497
Noteworthy quarterly items income (expense):
Other-than-temporary impairments		(111)	(56)	(86)	(74)	(219)	(114)	(216)	(618)	187	829	1,048
Net (gain) loss on sale of divested businesses		1		47		6,733			3	(48)	(6,736)	(74)
Adjustment to federal deferred tax valuation allowance		741	1,154	509	761	116	205	1,239	347	3,500
Net gain (loss) on extinguishment of debt	484	(192)	(81)	(38)	(340)			(11)	(21)	(651)	(32)	(2,908)
AIA Group Limited (AIA)
Change in fair value
Change in fair value						240	527	(493)	1,795
Maiden Lane III interest
Change in fair value
Change in fair value							$ 330	$ 1,306	$ 1,498