INVESTMENTS (Details - Summary of fair value and gross unrealized losses on available for sale securities aggregated by major investment category and length of time in a continuous unrealized loss position) $ in Millions	Mar. 31, 2016 USD ($) item	Dec. 31, 2015 USD ($)
Fair value and gross unrealized losses on AIG's available for sale securities
Fair Value, Less than 12 Months	$ 34,686	$ 67,217
Gross Unrealized Losses, Less than 12 Months	1,600	3,182
Fair Value, 12 Months or More	18,977	13,595
Gross Unrealized Losses, 12 Months or More	2,001	2,092
Fair Value, Total	53,663	80,812
Gross Unrealized Losses, Total	3,601	5,274
Bonds available for sale
Fair value and gross unrealized losses on AIG's available for sale securities
Fair Value, Less than 12 Months	34,524	66,926
Gross Unrealized Losses, Less than 12 Months	1,585	3,158
Fair Value, 12 Months or More	18,977	13,595
Gross Unrealized Losses, 12 Months or More	2,001	2,092
Fair Value, Total	53,501	80,521
Gross Unrealized Losses, Total	$ 3,586	5,250
Number of securities in an unrealized loss position | item	9,760
Number of individual securities in continuous unrealized loss position for longer than twelve months | item	2,931
Bonds available for sale | U.S. government and government sponsored entities
Fair value and gross unrealized losses on AIG's available for sale securities
Fair Value, Less than 12 Months	$ 2	483
Gross Unrealized Losses, Less than 12 Months	0	9
Fair Value, 12 Months or More	11	1
Gross Unrealized Losses, 12 Months or More	1	0
Fair Value, Total	13	484
Gross Unrealized Losses, Total	1	9
Bonds available for sale | Obligations of states, municipalities and political subdivisions
Fair value and gross unrealized losses on AIG's available for sale securities
Fair Value, Less than 12 Months	550	2,382
Gross Unrealized Losses, Less than 12 Months	25	87
Fair Value, 12 Months or More	545	268
Gross Unrealized Losses, 12 Months or More	29	17
Fair Value, Total	1,095	2,650
Gross Unrealized Losses, Total	54	104
Bonds available for sale | Non-U.S. government
Fair value and gross unrealized losses on AIG's available for sale securities
Fair Value, Less than 12 Months	1,400	4,327
Gross Unrealized Losses, Less than 12 Months	52	203
Fair Value, 12 Months or More	1,212	832
Gross Unrealized Losses, 12 Months or More	128	159
Fair Value, Total	2,612	5,159
Gross Unrealized Losses, Total	180	362
Bonds available for sale | Corporate debt
Fair value and gross unrealized losses on AIG's available for sale securities
Fair Value, Less than 12 Months	17,937	41,317
Gross Unrealized Losses, Less than 12 Months	1,053	2,514
Fair Value, 12 Months or More	9,297	5,428
Gross Unrealized Losses, 12 Months or More	1,292	1,473
Fair Value, Total	27,234	46,745
Gross Unrealized Losses, Total	2,345	3,987
Bonds available for sale | Residential mortgage-backed securities (RMBS)
Fair value and gross unrealized losses on AIG's available for sale securities
Fair Value, Less than 12 Months	5,087	7,215
Gross Unrealized Losses, Less than 12 Months	151	133
Fair Value, 12 Months or More	4,828	4,318
Gross Unrealized Losses, 12 Months or More	355	278
Fair Value, Total	9,915	11,533
Gross Unrealized Losses, Total	506	411
Bonds available for sale | Commercial mortgage-backed securities (CMBS)
Fair value and gross unrealized losses on AIG's available for sale securities
Fair Value, Less than 12 Months	1,340	4,138
Gross Unrealized Losses, Less than 12 Months	46	108
Fair Value, 12 Months or More	863	573
Gross Unrealized Losses, 12 Months or More	52	21
Fair Value, Total	2,203	4,711
Gross Unrealized Losses, Total	98	129
Bonds available for sale | Collateralized Debt Obligations/Asset-Backed Securities (CDO/ABS)
Fair value and gross unrealized losses on AIG's available for sale securities
Fair Value, Less than 12 Months	8,208	7,064
Gross Unrealized Losses, Less than 12 Months	258	104
Fair Value, 12 Months or More	2,221	2,175
Gross Unrealized Losses, 12 Months or More	144	144
Fair Value, Total	10,429	9,239
Gross Unrealized Losses, Total	402	248
Equity securities available for sale
Fair value and gross unrealized losses on AIG's available for sale securities
Fair Value, Less than 12 Months	162	291
Gross Unrealized Losses, Less than 12 Months	15	24
Fair Value, 12 Months or More	0	0
Gross Unrealized Losses, 12 Months or More	0	0
Fair Value, Total	162	291
Gross Unrealized Losses, Total	$ 15	24
Number of securities in an unrealized loss position | item	128
Equity securities available for sale | Common Stock
Fair value and gross unrealized losses on AIG's available for sale securities
Fair Value, Less than 12 Months	$ 69	91
Gross Unrealized Losses, Less than 12 Months	13	16
Fair Value, 12 Months or More	0	0
Gross Unrealized Losses, 12 Months or More	0	0
Fair Value, Total	69	91
Gross Unrealized Losses, Total	13	16
Equity securities available for sale | Preferred Stock
Fair value and gross unrealized losses on AIG's available for sale securities
Fair Value, Less than 12 Months	0	0
Gross Unrealized Losses, Less than 12 Months	0	0
Fair Value, 12 Months or More	0	0
Gross Unrealized Losses, 12 Months or More	0	0
Fair Value, Total	0	0
Gross Unrealized Losses, Total	0	0
Equity securities available for sale | Mutual Funds
Fair value and gross unrealized losses on AIG's available for sale securities
Fair Value, Less than 12 Months	93	200
Gross Unrealized Losses, Less than 12 Months	2	8
Fair Value, 12 Months or More	0	0
Gross Unrealized Losses, 12 Months or More	0	0
Fair Value, Total	93	200
Gross Unrealized Losses, Total	$ 2	$ 8