Schedule IV Reinsurance (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Reinsurance
Gross Amount	$ 43,909	$ 44,426	$ 45,744
Ceded to Other Companies	9,530	10,099	10,590
Assumed from Other Companies	3,662	3,442	3,047
Net Amount	38,041	37,769	38,201
Percent of Amount Assumed to Net	9.60%	9.10%	8.00%
Divested Businesses
Reinsurance
Gross Amount	9	11	15
Ceded to Other Companies			6
Assumed from Other Companies			2
Net Amount	9	11	11
Percent of Amount Assumed to Net			18.20%
Mortgage Guaranty
Reinsurance
Gross Amount	1,099	938	898
Ceded to Other Companies	38	70	97
Assumed from Other Companies	(13)	(10)
Net Amount	1,048	858	801
Percent of Amount Assumed to Net	(1.20%)	(1.20%)
Reportable segment | AIG Property Casualty
Reinsurance
Gross Amount	39,545	40,428	41,710
Ceded to Other Companies	8,816	9,420	9,901
Assumed from Other Companies	3,659	3,428	3,031
Net Amount	34,388	34,436	34,840
Percent of Amount Assumed to Net	10.60%	10.00%	8.70%
Reportable segment | AIG Life and Retirement
Reinsurance
Gross Amount	3,256	3,049	3,121
Ceded to Other Companies	673	602	591
Assumed from Other Companies	13	17	19
Net Amount	2,596	2,464	2,549
Percent of Amount Assumed to Net	0.50%	0.70%	0.70%
Eliminations
Reinsurance
Ceded to Other Companies	3	7	(5)
Assumed from Other Companies	3	7	(5)
Long-duration insurance in force
Reinsurance
Gross Amount	947,170	918,260	891,145
Ceded to Other Companies	122,012	129,159	140,156
Assumed from Other Companies	427	458	1,220
Net Amount	$ 825,585	$ 789,559	$ 752,209
Percent of Amount Assumed to Net	0.10%	0.10%	0.20%