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	Jun. 30, 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	$ 19,482	$ 67,217
Gross Unrealized Losses, Less than 12 Months	598	3,182
Fair Value, 12 Months or More	18,632	13,595
Gross Unrealized Losses, 12 Months or More	1,398	2,092
Fair Value, Total	38,114	80,812
Gross Unrealized Losses, Total	1,996	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	19,327	66,926
Gross Unrealized Losses, Less than 12 Months	588	3,158
Fair Value, 12 Months or More	18,630	13,595
Gross Unrealized Losses, 12 Months or More	1,397	2,092
Fair Value, Total	37,957	80,521
Gross Unrealized Losses, Total	$ 1,985	5,250
Number of securities in an unrealized loss position | item	7,153
Number of individual securities in continuous unrealized loss position for longer than twelve months | item	3,129
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	$ 51	483
Gross Unrealized Losses, Less than 12 Months	2	9
Fair Value, 12 Months or More	12	1
Gross Unrealized Losses, 12 Months or More	0	0
Fair Value, Total	63	484
Gross Unrealized Losses, Total	2	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	163	2,382
Gross Unrealized Losses, Less than 12 Months	1	87
Fair Value, 12 Months or More	257	268
Gross Unrealized Losses, 12 Months or More	26	17
Fair Value, Total	420	2,650
Gross Unrealized Losses, Total	27	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	1,236	4,327
Gross Unrealized Losses, Less than 12 Months	25	203
Fair Value, 12 Months or More	1,005	832
Gross Unrealized Losses, 12 Months or More	85	159
Fair Value, Total	2,241	5,159
Gross Unrealized Losses, Total	110	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	8,058	41,317
Gross Unrealized Losses, Less than 12 Months	302	2,514
Fair Value, 12 Months or More	9,098	5,428
Gross Unrealized Losses, 12 Months or More	828	1,473
Fair Value, Total	17,156	46,745
Gross Unrealized Losses, Total	1,130	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	4,263	7,215
Gross Unrealized Losses, Less than 12 Months	125	133
Fair Value, 12 Months or More	4,731	4,318
Gross Unrealized Losses, 12 Months or More	327	278
Fair Value, Total	8,994	11,533
Gross Unrealized Losses, Total	452	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	620	4,138
Gross Unrealized Losses, Less than 12 Months	29	108
Fair Value, 12 Months or More	639	573
Gross Unrealized Losses, 12 Months or More	28	21
Fair Value, Total	1,259	4,711
Gross Unrealized Losses, Total	57	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	4,936	7,064
Gross Unrealized Losses, Less than 12 Months	104	104
Fair Value, 12 Months or More	2,888	2,175
Gross Unrealized Losses, 12 Months or More	103	144
Fair Value, Total	7,824	9,239
Gross Unrealized Losses, Total	207	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	155	291
Gross Unrealized Losses, Less than 12 Months	10	24
Fair Value, 12 Months or More	2	0
Gross Unrealized Losses, 12 Months or More	1	0
Fair Value, Total	157	291
Gross Unrealized Losses, Total	$ 11	24
Number of securities in an unrealized loss position | item	140
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	$ 142	91
Gross Unrealized Losses, Less than 12 Months	10	16
Fair Value, 12 Months or More	2	0
Gross Unrealized Losses, 12 Months or More	1	0
Fair Value, Total	144	91
Gross Unrealized Losses, Total	11	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	13	200
Gross Unrealized Losses, Less than 12 Months	0	8
Fair Value, 12 Months or More	0	0
Gross Unrealized Losses, 12 Months or More	0	0
Fair Value, Total	13	200
Gross Unrealized Losses, Total	$ 0	$ 8