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) - Bonds available for sale $ in Millions	Jun. 30, 2019 USD ($) item	Dec. 31, 2018 USD ($)
Fair value and gross unrealized losses on AIG's available for sale securities
Fair Value, Less than 12 Months	$ 20,400	$ 70,800
Gross Unrealized Losses, Less than 12 Months	609	2,679
Fair Value, 12 Months or More	15,387	36,110
Gross Unrealized Losses, 12 Months or More	531	2,129
Fair Value, Total	35,787	106,910
Gross Unrealized Losses, Total	$ 1,140	4,808
Number of securities in an unrealized loss position | item	6,332
Number of individual securities in continuous unrealized loss position for longer than twelve months | item	2,452
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	$ 219	574
Gross Unrealized Losses, Less than 12 Months	1	13
Fair Value, 12 Months or More	267	873
Gross Unrealized Losses, 12 Months or More	2	29
Fair Value, Total	486	1,447
Gross Unrealized Losses, Total	3	42
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	63	1,965
Gross Unrealized Losses, Less than 12 Months	1	51
Fair Value, 12 Months or More	492	1,530
Gross Unrealized Losses, 12 Months or More	18	70
Fair Value, Total	555	3,495
Gross Unrealized Losses, Total	19	121
Non-U.S. governments
Fair value and gross unrealized losses on AIG's available for sale securities
Fair Value, Less than 12 Months	1,112	3,851
Gross Unrealized Losses, Less than 12 Months	34	149
Fair Value, 12 Months or More	805	2,422
Gross Unrealized Losses, 12 Months or More	56	153
Fair Value, Total	1,917	6,273
Gross Unrealized Losses, Total	90	302
Corporate debt
Fair value and gross unrealized losses on AIG's available for sale securities
Fair Value, Less than 12 Months	9,361	47,364
Gross Unrealized Losses, Less than 12 Months	477	2,181
Fair Value, 12 Months or More	8,162	20,056
Gross Unrealized Losses, 12 Months or More	350	1,466
Fair Value, Total	17,523	67,420
Gross Unrealized Losses, Total	827	3,647
Residential mortgage-backed securities (RMBS)
Fair value and gross unrealized losses on AIG's available for sale securities
Fair Value, Less than 12 Months	3,483	5,231
Gross Unrealized Losses, Less than 12 Months	35	94
Fair Value, 12 Months or More	2,578	5,641
Gross Unrealized Losses, 12 Months or More	52	223
Fair Value, Total	6,061	10,872
Gross Unrealized Losses, Total	87	317
Commercial mortgage-backed securities (CMBS)
Fair value and gross unrealized losses on AIG's available for sale securities
Fair Value, Less than 12 Months	724	2,646
Gross Unrealized Losses, Less than 12 Months	7	47
Fair Value, 12 Months or More	960	4,264
Gross Unrealized Losses, 12 Months or More	22	167
Fair Value, Total	1,684	6,910
Gross Unrealized Losses, Total	29	214
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	5,438	9,169
Gross Unrealized Losses, Less than 12 Months	54	144
Fair Value, 12 Months or More	2,123	1,324
Gross Unrealized Losses, 12 Months or More	31	21
Fair Value, Total	7,561	10,493
Gross Unrealized Losses, Total	$ 85	$ 165