CONDENSED CONSOLIDATED STATEMENT OF INCOME (USD $) In Millions, except Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Revenues:
Premiums	$ 9,372	$ 9,470
Policy fees	615	584
Net investment income	4,164	7,105
Net realized capital gains (losses):
Total other-than-temporary impairments on available for sale securities	(40)	(168)
Portion of other-than-temporary impairments on available for sale fixed maturity securities recognized in Other comprehensive income (loss)	(1)	(285)
Net other-than-temporary impairments on available for sale securities recognized in net income (loss)	(41)	(453)
Other realized capital gains	341	202
Total net realized capital gains (losses)	300	(251)
Other income	1,437	589
Total revenues	15,888	17,497
Benefits, claims and expenses:
Policyholder benefits and claims incurred	6,728	7,119
Interest credited to policyholder account balances	1,017	1,062
Amortization of deferred acquisition costs	1,286	1,347
Other acquisition and insurance expenses	2,238	2,258
Interest expense	577	565
Loss (gain) on extinguishment of debt	340
Other expenses	870	680
Total benefits, claims and expenses	13,056	13,031
Income (loss) from continuing operations before income tax expense (benefit)	2,832	4,466
Income taxes expense (benefit)	694	1,081
Income (loss) from continuing operations	2,138	3,385
Income (loss) from discontinued operations, net of income tax expense (benefit)	93	64
Net income (loss)	2,231	3,449
Less: Net income (loss) from continuing operations attributable to noncontrolling interests:
Nonvoting, callable, junior and senior preferred interests		208
Other	25	33
Total net income (loss) from continuing operations attributable to noncontrolling interests	25	241
Net income (loss) attributable to AIG	$ 2,206	$ 3,208
Basic and diluted:
Income (loss) from continuing operations - basic (in dollars per share)	$ 1.43	$ 1.68
Income (loss) from discontinued operations - basic (in dollars per share)	$ 0.06	$ 0.03
Income (loss) from continuing operations - diluted (in dollars per share)	$ 1.43	$ 1.68
Income (loss) from discontinued operations - diluted (in dollars per share)	$ 0.06	$ 0.03
Net Income (loss) attributable to AIG - basic (in dollars per share)	$ 1.49	$ 1.71
Net Income (loss) attributable to AIG - diluted (in dollars per share)	$ 1.49	$ 1.71
Weighted average shares outstanding:
Basic (in shares)	1,476,471,097	1,875,972,970
Diluted (in shares)	1,476,678,931	1,876,002,775