QUARTERLY FINANCIAL INFORMATION (UNAUDITED) (Details 2) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended								12 Months Ended
	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
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
Total 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
Basic:
Income (loss) from continuing operations (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 (in dollars per share)	$ 0.01	$ (0.01)	$ 0.01	$ 0.05				$ 0.01	$ 0.05		$ 1.36
Diluted:
Income (loss) from continuing operations (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 (in dollars per share)	$ 0.01	$ (0.01)	$ 0.01	$ 0.05				$ 0.01	$ 0.05		$ 1.36
Adjustment
Net income (loss) attributable to AIG	327
As Previously Reported
Total revenues		14,826	17,315	15,888	15,854	16,722	16,221	17,497
Income (loss) from continuing operations before income tax expense (benefit)		1,179	3,147	2,832	629	2,558	1,669	4,466
Income (loss) from discontinued operations, net of income tax expense (benefit)		$ (42)	$ 33	$ 93	$ (4,332)	$ 37	$ 179	$ 64
Basic:
Income (loss) from continuing operations (in dollars per share)		$ 1.50	$ 1.83	$ 1.43	$ 0.25	$ 1.11	$ 1.23	$ 1.68
Income (loss) from discontinued operations (in dollars per share)		$ (0.03)	$ 0.02	$ 0.06	$ (2.93)	$ 0.02	$ 0.10	$ 0.03
Diluted:
Income (loss) from continuing operations (in dollars per share)		$ 1.49	$ 1.82	$ 1.43	$ 0.25	$ 1.11	$ 1.23	$ 1.68
Income (loss) from discontinued operations (in dollars per share)		$ (0.03)	$ 0.02	$ 0.06	$ (2.93)	$ 0.02	$ 0.10	$ 0.03