REINSURANCE (Details 2) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Premiums Written
Direct	$ 43,909	$ 44,426	$ 45,744
Assumed	3,662	3,442	3,047
Ceded	(9,530)	(10,099)	(10,590)
Net Amount	38,041	37,769	38,201
Premiums earned:
Net	37,350	38,047	39,026
Reinsurance recoveries, which reduced policyholder benefits and claims incurred	17,231	19,209	20,320	19,644
Short-duration insurance
Premiums Written
Direct	40,644	41,366	42,608
Assumed	3,649	3,425	3,033
Ceded	(8,857)	(9,497)	(10,000)
Net Amount	35,436	35,294	35,641
Premiums earned:
Direct	39,836	41,708	43,713
Assumed	3,510	3,255	3,303
Ceded	(8,584)	(9,375)	(10,535)
Net	34,762	35,588	36,481
Reinsurance recoveries, which reduced policyholder benefits and claims incurred	3,300	4,500	6,100
Mortgage Guaranty
Premiums Written
Direct	1,099	938	898
Assumed	(13)	(10)
Ceded	(38)	(70)	(97)
Net Amount	1,048	858	801
Operating Segments | Total AIG Property Casualty
Premiums Written
Direct	39,545	40,428	41,710
Assumed	3,659	3,428	3,031
Ceded	(8,816)	(9,420)	(9,901)
Net Amount	34,388	34,436	34,840
Operating Segments | Total AIG Property Casualty | Short-duration insurance
Premiums Written
Direct	39,545	40,428	41,710
Assumed	3,659	3,428	3,031
Ceded	(8,816)	(9,420)	(9,901)
Net Amount	34,388	34,436	34,840
Premiums earned:
Direct	38,996	40,954	42,878
Assumed	3,521	3,254	3,294
Ceded	(8,564)	(9,335)	(10,483)
Net	33,953	34,873	35,689
Eliminations
Premiums Written
Assumed	3	7	(5)
Ceded	(3)	(7)	5
Eliminations | Short-duration insurance
Premiums Written
Assumed	3	7	2
Ceded	(3)	(7)	(2)
Premiums earned:
Assumed	(18)	(30)	(46)
Ceded	18	30	46
Other Operations | Mortgage Guaranty | Short-duration insurance
Premiums Written
Direct	1,099	938	898
Assumed	(13)	(10)
Ceded	(38)	(70)	(97)
Net Amount	1,048	858	801
Premiums earned:
Direct	840	754	835
Assumed	7	31	55
Ceded	(38)	(70)	(98)
Net	$ 809	$ 715	$ 792