CONSOLIDATED STATEMENT OF OPERATIONS (USD $) In Millions, except Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Revenues:
Premiums	$ 38,011	$ 38,990	$ 45,319
Policy fees	2,791	2,705	2,710
Net investment income	20,343	14,755	20,934
Net realized capital gains (losses):
Total other-than-temporary impairments on available for sale securities	(448)	(1,216)	(1,712)
Portion of other-than-temporary impairments on available for sale fixed maturity securities recognized in Other comprehensive income (loss)	(381)	168	(812)
Net other-than-temporary impairments on available for sale securities recognized in net income (loss)	(829)	(1,048)	(2,524)
Other realized capital gains	1,758	1,749	1,808
Total net realized capital gains (losses)	929	701	(716)
Other income	3,582	2,661	4,582
Total revenues	65,656	59,812	72,829
Benefits, claims and expenses:
Policyholder benefits and claims incurred	31,977	33,450	41,392
Interest credited to policyholder account balances	4,362	4,467	4,487
Amortization of deferred acquisition costs	5,709	5,486	5,821
Other acquisition and insurance expenses	9,235	8,458	10,163
Interest expense	2,319	2,444	6,742
Net loss on extinguishment of debt	9	2,847	104
Net (gain) loss on sale of properties and divested businesses	2	74	(19,566)
Other expenses	2,721	2,470	3,439
Total benefits, claims and expenses	56,334	59,696	52,582
Income (loss) from continuing operations before income tax expense (benefit)	9,322	116	20,247
Income tax expense (benefit):
Current	795	18	580
Deferred	775	(19,442)	6,413
Income taxes expense (benefit)	1,570	(19,424)	6,993
Income (loss) from continuing operations	7,752	19,540	13,254
Income (loss) from discontinued operations, net of income tax expense (benefit)	(4,052)	1,790	(969)
Net income (loss)	3,700	21,330	12,285
Less: Net income (loss) from continuing operations attributable to noncontrolling interests:
Nonvoting, callable, junior and senior preferred interests	208	634	1,818
Other	54	54	354
Total net income (loss) from continuing operations attributable to noncontrolling interests	262	688	2,172
Net income (loss) from discontinued operations attributable to noncontrolling interests		20	55
Total net income (loss) attributable to noncontrolling interests	262	708	2,227
Net income (loss) attributable to AIG	3,438	20,622	10,058
Net income (loss) attributable to AIG common shareholders	$ 3,438	$ 19,810	$ 2,046
Basic and diluted:
Income (loss) from continuing operations - basic (in dollars per share)	$ 4.44	$ 10.03	$ 16.50
Income (loss) from discontinued operations - basic (in dollars per share)	$ (2.40)	$ 0.98	$ (1.52)
Income (loss) from continuing operations - diluted (in dollars per share)	$ 4.44	$ 10.03	$ 16.50
Income (loss) from discontinued operations - diluted (in dollars per share)	$ (2.40)	$ 0.98	$ (1.52)
Weighted average shares outstanding:
Basic (in shares)	1,687,197,038	1,799,385,757	136,585,844
Diluted (in shares)	1,687,226,641	1,799,458,497	136,649,280