INFORMATION PROVIDED IN CONNECTION WITH OUTSTANDING DEBT (Details 3) (USD $) In Millions, unless otherwise specified	3 Months Ended								12 Months Ended
	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
CONDENSED FINANCIAL STATEMENTS
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
Other comprehensive income (loss)									6,096	(2,604)	2,963
Comprehensive income (loss)									9,796	18,726	15,248
Total comprehensive income (loss) attributable to noncontrolling interests									265	587	2,408
Comprehensive income (loss) attributable to AIG									9,531	18,139	12,840
AIG (As Guarantor)
CONDENSED FINANCIAL STATEMENTS
Net income (loss)									3,438	20,622	10,058
Other comprehensive income (loss)									6,093	(2,483)	2,782
Comprehensive income (loss)									9,531	18,139	12,840
Comprehensive income (loss) attributable to AIG									9,531	18,139	12,840
SAFG, Inc.
CONDENSED FINANCIAL STATEMENTS
Net income (loss)									2,207	1,597	1,664
Other comprehensive income (loss)									3,973	1,101	3,258
Comprehensive income (loss)									6,180	2,698	4,922
Comprehensive income (loss) attributable to AIG									6,180	2,698	4,922
Other Subsidiaries
CONDENSED FINANCIAL STATEMENTS
Net income (loss)									2,340	6,957	23,647
Other comprehensive income (loss)									7,158	(2,674)	2,270
Comprehensive income (loss)									9,498	4,283	25,917
Total comprehensive income (loss) attributable to noncontrolling interests									57	(47)	590
Comprehensive income (loss) attributable to AIG									9,441	4,330	25,327
Reclassifications and Eliminations
CONDENSED FINANCIAL STATEMENTS
Net income (loss)									(4,285)	(7,846)	(23,084)
Other comprehensive income (loss)									(11,128)	1,452	(5,347)
Comprehensive income (loss)									(15,413)	(6,394)	(28,431)
Total comprehensive income (loss) attributable to noncontrolling interests									208	634	1,818
Comprehensive income (loss) attributable to AIG									$ (15,621)	$ (7,028)	$ (30,249)