SEGMENT INFORMATION (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2014 segment	Mar. 31, 2013
Segment results
Number of reportable segments	2
Total revenues	$ 16,112	$ 16,962
Pre-tax Income (loss) from continuing operations	2,273	2,875
Other Operations
Segment results
Total revenues	2,260	2,441
Pre-tax Income (loss) from continuing operations	(345)	(381)
Other Operations | Mortgage Guaranty
Segment results
Total revenues	249	231
Pre-tax Income (loss) from continuing operations	77	44
Other Operations | Global Capital Markets
Segment results
Total revenues	59	273
Pre-tax Income (loss) from continuing operations	29	227
Other Operations | Direct Investment Book
Segment results
Total revenues	465	411
Pre-tax Income (loss) from continuing operations	355	312
Other Operations | Corporate and Other
Segment results
Total revenues	382	461
Pre-tax Income (loss) from continuing operations	(824)	(1,008)
Other Operations | Aircraft Leasing [Member]
Segment results
Total revenues	1,113	1,074
Pre-tax Income (loss) from continuing operations	17	43
Other Operations | Consolidation and elimination of reconciling items
Segment results
Total revenues	(8)	(9)
Pre-tax Income (loss) from continuing operations	1	1
Operating Segments | Total AIG Property Casualty
Segment results
Total revenues	9,666	9,968
Pre-tax Income (loss) from continuing operations	1,309	1,614
Operating Segments | Total AIG Life and Retirement
Segment results
Total revenues	4,351	4,740
Pre-tax Income (loss) from continuing operations	1,232	1,570
Consolidation and Eliminations
Segment results
Total revenues	(165)	(187)
Pre-tax Income (loss) from continuing operations	77	72
Reportable Subsegments | Total AIG Property Casualty | Commercial Insurance
Segment results
Total revenues	5,642	5,773
Pre-tax Income (loss) from continuing operations	713	1,041
Reportable Subsegments | Total AIG Property Casualty | Consumer Insurance
Segment results
Total revenues	3,258	3,506
Pre-tax Income (loss) from continuing operations	27	153
Reportable Subsegments | Total AIG Property Casualty | Other Insurance
Segment results
Total revenues	766	689
Pre-tax Income (loss) from continuing operations	569	420
Reportable Subsegments | Total AIG Life and Retirement | Retail
Segment results
Total revenues	2,766	3,003
Pre-tax Income (loss) from continuing operations	665	996
Reportable Subsegments | Total AIG Life and Retirement | Institutional
Segment results
Total revenues	1,585	1,737
Pre-tax Income (loss) from continuing operations	$ 567	$ 574