SEGMENT INFORMATION (Details - Continuing operations by operating segment) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Segment Reporting Information [Line Items]
Total Revenues	$ 12,561	$ 11,631	$ 25,017	$ 23,343
Adjusted pre-tax income (loss)	1,837	1,252	2,991	2,479
AIG Consolidation and Eliminations
Segment Reporting Information [Line Items]
Total Revenues	(146)	(110)	(307)	(172)
Adjusted pre-tax income (loss)	(56)	(12)	(126)	(1)
Total AIG Consolidated adjusted revenues and adjusted pre-tax income (loss)
Segment Reporting Information [Line Items]
Total Revenues	12,160	11,532	24,914	23,360
Adjusted pre-tax income (loss)	1,677	1,278	3,524	2,494
General Insurance | Reportable Segments
Segment Reporting Information [Line Items]
Total Revenues	7,527	7,227	15,329	14,671
Adjusted pre-tax income (loss)	980	568	2,248	1,078
General Insurance | Reportable Segments | North America
Segment Reporting Information [Line Items]
Total Revenues	4,025	3,426	8,123	6,766
Adjusted pre-tax income (loss)	718	407	1,652	727
General Insurance | Reportable Segments | International
Segment Reporting Information [Line Items]
Total Revenues	3,502	3,801	7,206	7,905
Adjusted pre-tax income (loss)	262	161	596	351
Life and Retirement | Reportable Segments
Segment Reporting Information [Line Items]
Total Revenues	3,828	3,465	8,032	6,925
Adjusted pre-tax income (loss)	1,049	962	1,973	1,854
Life and Retirement | Reportable Segments | Individual Retirement
Segment Reporting Information [Line Items]
Total Revenues	1,466	1,366	2,817	2,727
Adjusted pre-tax income (loss)	588	462	1,096	961
Life and Retirement | Reportable Segments | Group Retirement
Segment Reporting Information [Line Items]
Total Revenues	790	730	1,499	1,491
Adjusted pre-tax income (loss)	293	250	525	532
Life and Retirement | Reportable Segments | Life Insurance
Segment Reporting Information [Line Items]
Total Revenues	1,154	1,092	2,227	2,153
Adjusted pre-tax income (loss)	86	175	202	227
Life and Retirement | Reportable Segments | Institutional Markets
Segment Reporting Information [Line Items]
Total Revenues	418	277	1,489	554
Adjusted pre-tax income (loss)	82	75	150	134
Other Operations
Segment Reporting Information [Line Items]
Total Revenues	211	169	414	319
Adjusted pre-tax income (loss)	(415)	(374)	(802)	(716)
Legacy Portfolio
Segment Reporting Information [Line Items]
Total Revenues	740	781	1,446	1,617
Adjusted pre-tax income (loss)	$ 119	$ 134	$ 231	$ 279