INFORMATION PROVIDED IN CONNECTION WITH OUTSTANDING DEBT (Details 2) (USD $) In Millions, unless otherwise specified	1 Months Ended	3 Months Ended								12 Months Ended
	Nov. 30, 2011	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Revenues:
Change in fair value of ML III										$ 2,888	$ (646)	$ 1,792
Other income										62,768	60,458	71,037
Total revenues		15,854	16,505	16,006	17,291	16,376	11,606	15,547	16,283	65,656	59,812	72,829
Expenses:
Interest expense on FRBNY Credit Facility											70	4,028
Other interest expense										2,319	2,374	2,714
Net (gains) losses on extinguishment of debt	(484)	(41)		11	21	(484)		79	3,313	9	2,847	104
Other expenses										54,006	54,405	45,736
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)										1,570	(19,424)	6,993
Income (loss) from continuing operations										7,752	19,540	13,254
Income (loss) from discontinued operations		(4,332)	37	179	64	94	(1,052)	41	2,707	(4,052)	1,790	(969)
Net income (loss)		(3,949)	1,861	2,339	3,449	21,602	(3,826)	2,053	1,501	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	96	145	141	252	208	634	1,818
Other		9	5	7	33	26	19	64	(55)	54	54	354
Total net income (loss) from continuing operations attributable to noncontrolling interests		9	5	7	241	122	164	205	197	262	688	2,172
Income (loss) from discontinued operations attributable to noncontrolling interests						1		12	7		20	55
Total net income (loss) attributable to noncontrolling interests		9	5	7	241	123	164	217	204	262	708	2,227
Net income (loss) attributable to AIG		(3,958)	1,856	2,332	3,208	21,479	(3,990)	1,836	1,297	3,438	20,622	10,058
AIG (As Guarantor)
Revenues:
Equity in earnings of consolidated subsidiaries										1,970	6,260	21,385
Change in fair value of ML III										2,287	(723)
Other income										1,911	1,088	3,046
Total revenues										6,168	6,625	24,431
Expenses:
Interest expense on FRBNY Credit Facility											72	4,107
Other interest expense										2,257	2,845	2,279
Net (gains) losses on extinguishment of debt										9	2,847	104
Other expenses										1,602	867	1,664
Total benefits, claims and expenses										3,868	6,631	8,154
Income (loss) from continuing operations before income tax expense (benefit)										2,300	(6)	16,277
Income tax expense (benefit)										(1,137)	(19,695)	5,402
Income (loss) from continuing operations										3,437	19,689	10,875
Income (loss) from discontinued operations										1	933	(817)
Net income (loss)										3,438	20,622	10,058
Less: Net income (loss) from continuing operations attributable to noncontrolling interests:
Net income (loss) attributable to AIG										3,438	20,622	10,058
Intercompany income										242	489	2,600
Intercompany expense										141	700	28
SAFG, Inc.
Revenues:
Equity in earnings of consolidated subsidiaries										2,315	1,586	1,695
Other income										49	189	246
Total revenues										2,364	1,775	1,941
Expenses:
Other interest expense										174	281	378
Total benefits, claims and expenses										174	281	378
Income (loss) from continuing operations before income tax expense (benefit)										2,190	1,494	1,563
Income tax expense (benefit)										(17)	(103)	(101)
Income (loss) from continuing operations										2,207	1,597	1,664
Net income (loss)										2,207	1,597	1,664
Less: Net income (loss) from continuing operations attributable to noncontrolling interests:
Net income (loss) attributable to AIG										2,207	1,597	1,664
Other Subsidiaries
Revenues:
Change in fair value of ML III										601	77	1,792
Other income										61,191	60,370	70,403
Total revenues										61,792	60,447	72,195
Expenses:
Other interest expense										271	437	2,711
Other expenses										52,404	53,538	44,072
Total benefits, claims and expenses										52,675	53,975	46,783
Income (loss) from continuing operations before income tax expense (benefit)										9,117	6,472	25,412
Income tax expense (benefit)										2,724	374	1,692
Income (loss) from continuing operations										6,393	6,098	23,720
Income (loss) from discontinued operations										(4,053)	859	(73)
Net income (loss)										2,340	6,957	23,647
Less: Net income (loss) from continuing operations attributable to noncontrolling interests:
Other										54	54	354
Total net income (loss) from continuing operations attributable to noncontrolling interests											54	354
Income (loss) from discontinued operations attributable to noncontrolling interests											20	55
Total net income (loss) attributable to noncontrolling interests										54	74	409
Net income (loss) attributable to AIG										2,286	6,883	23,238
Reclassifications and Eliminations
Revenues:
Equity in earnings of consolidated subsidiaries										(4,285)	(7,846)	(23,080)
Other income										(383)	(1,189)	(2,658)
Total revenues										(4,668)	(9,035)	(25,738)
Expenses:
Interest expense on FRBNY Credit Facility											(2)	(79)
Other interest expense										(383)	(1,189)	(2,654)
Total benefits, claims and expenses										(383)	(1,191)	(2,733)
Income (loss) from continuing operations before income tax expense (benefit)										(4,285)	(7,844)	(23,005)
Income (loss) from continuing operations										(4,285)	(7,844)	(23,005)
Income (loss) from discontinued operations											(2)	(79)
Net income (loss)										(4,285)	(7,846)	(23,084)
Less: Net income (loss) from continuing operations attributable to noncontrolling interests:
Nonvoting, callable, junior and senior preferred interests										208	634	1,818
Total net income (loss) from continuing operations attributable to noncontrolling interests											634	1,818
Total net income (loss) attributable to noncontrolling interests										208	634	1,818
Net income (loss) attributable to AIG										$ (4,493)	$ (8,480)	$ (24,902)