SEGMENT INFORMATION (Details - Continuing operations by operating segment) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Segment Reporting Information [Line Items]
Total Revenues	$ 12,914	$ 11,486	$ 37,931	$ 34,829
Adjusted pre-tax income (loss)	1,260	(1,527)	4,251	952
AIG Consolidation and Eliminations
Segment Reporting Information [Line Items]
Total Revenues	(153)	(42)	(460)	(214)
Adjusted pre-tax income (loss)	(46)	29	(172)	28
Total AIG Consolidated adjusted revenues and adjusted pre-tax income (loss)
Segment Reporting Information [Line Items]
Total Revenues	12,057	12,035	36,971	35,395
Adjusted pre-tax income (loss)	746	(416)	4,270	2,078
General Insurance | Reportable Segments
Segment Reporting Information [Line Items]
Total Revenues	7,415	7,982	22,744	22,653
Adjusted pre-tax income (loss)	507	(825)	2,755	253
General Insurance | Reportable Segments | North America
Segment Reporting Information [Line Items]
Total Revenues	3,878	4,129	12,001	10,895
Adjusted pre-tax income (loss)	435	(160)	2,087	567
General Insurance | Reportable Segments | International
Segment Reporting Information [Line Items]
Total Revenues	3,537	3,853	10,743	11,758
Adjusted pre-tax income (loss)	72	(665)	668	(314)
Life and Retirement | Reportable Segments
Segment Reporting Information [Line Items]
Total Revenues	3,833	3,146	11,865	10,071
Adjusted pre-tax income (loss)	646	713	2,619	2,567
Life and Retirement | Reportable Segments | Individual Retirement
Segment Reporting Information [Line Items]
Total Revenues	1,416	1,335	4,233	4,062
Adjusted pre-tax income (loss)	387	393	1,483	1,354
Life and Retirement | Reportable Segments | Group Retirement
Segment Reporting Information [Line Items]
Total Revenues	726	718	2,225	2,209
Adjusted pre-tax income (loss)	203	242	728	774
Life and Retirement | Reportable Segments | Life Insurance
Segment Reporting Information [Line Items]
Total Revenues	1,037	809	3,264	2,962
Adjusted pre-tax income (loss)	(7)	16	195	243
Life and Retirement | Reportable Segments | Institutional Markets
Segment Reporting Information [Line Items]
Total Revenues	654	284	2,143	838
Adjusted pre-tax income (loss)	63	62	213	196
Other Operations
Segment Reporting Information [Line Items]
Total Revenues	211	135	625	454
Adjusted pre-tax income (loss)	(454)	(417)	(1,256)	(1,133)
Legacy Portfolio
Segment Reporting Information [Line Items]
Total Revenues	751	814	2,197	2,431
Adjusted pre-tax income (loss)	$ 93	$ 84	$ 324	$ 363