SEGMENT INFORMATION (Details - Continuing operations by reportable segment) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Segment results
Total Revenues	$ 11,751	$ 12,854	$ 36,885	$ 39,357
Pre-tax operating income (loss)	(2,803)	737	591	3,381
Consolidation and Eliminations
Segment results
Total Revenues	(119)	(144)	(237)	(406)
Pre-tax operating income (loss)	(1)	(6)	75	0
Total AIG Consolidated revenues and pre-tax operating income (loss)
Segment results
Total Revenues	12,658	13,596	37,889	39,902
Pre-tax operating income (loss)	(1,856)	1,644	2,318	4,509
Commercial Insurance
Segment results
Total Revenues	4,592	5,416	13,808	16,258
Pre-tax operating income (loss)	(2,862)	685	(1,297)	2,288
Commercial Insurance | Reportable Segments | Liability And Financial Lines [Member]
Segment results
Total Revenues	2,848	3,379	8,443	10,118
Pre-tax operating income (loss)	(257)	948	903	2,332
Commercial Insurance | Reportable Segments | Property And Special Risks [Member]
Segment results
Total Revenues	1,744	2,037	5,365	6,140
Pre-tax operating income (loss)	(2,605)	(263)	(2,200)	(44)
Consumer Insurance
Segment results
Total Revenues	5,954	6,009	17,876	18,032
Pre-tax operating income (loss)	1,008	1,228	3,316	2,880
Consumer Insurance | Reportable Segments | Individual Retirement [Member]
Segment results
Total Revenues	1,343	1,380	4,099	4,382
Pre-tax operating income (loss)	718	920	1,815	1,727
Consumer Insurance | Reportable Segments | Group Retirement [Member]
Segment results
Total Revenues	702	717	2,116	2,053
Pre-tax operating income (loss)	249	214	758	670
Consumer Insurance | Reportable Segments | Life Insurance [Member]
Segment results
Total Revenues	1,000	921	3,043	2,862
Pre-tax operating income (loss)	112	(54)	272	(27)
Consumer Insurance | Reportable Segments | Personal Insurance [Member]
Segment results
Total Revenues	2,909	2,991	8,618	8,735
Pre-tax operating income (loss)	(71)	148	471	510
Other Operations
Segment results
Total Revenues	1,218	1,003	3,207	3,015
Pre-tax operating income (loss)	(287)	(164)	(835)	(565)
Legacy Portfolio
Segment results
Total Revenues	1,013	1,312	3,235	3,003
Pre-tax operating income (loss)	$ 286	$ (99)	$ 1,059	$ (94)