SEGMENT INFORMATION (Details - Continuing operations by operating segment) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Segment Reporting Information [Line Items]
Total Revenues	$ 12,456	$ 11,712
Adjusted pre-tax income (loss)	1,154	1,227
AIG Consolidation and Eliminations
Segment Reporting Information [Line Items]
Total Revenues	(161)	(62)
Adjusted pre-tax income (loss)	(70)	11
Total AIG Consolidated adjusted revenues and adjusted pre-tax income (loss)
Segment Reporting Information [Line Items]
Total Revenues	12,754	11,828
Adjusted pre-tax income (loss)	1,847	1,216
General Insurance | Reportable Segments
Segment Reporting Information [Line Items]
Total Revenues	7,802	7,444
Adjusted pre-tax income (loss)	1,268	510
General Insurance | Reportable Segments | North America
Segment Reporting Information [Line Items]
Total Revenues	4,098	3,340
Adjusted pre-tax income (loss)	934	320
General Insurance | Reportable Segments | International
Segment Reporting Information [Line Items]
Total Revenues	3,704	4,104
Adjusted pre-tax income (loss)	334	190
Life and Retirement | Reportable Segments
Segment Reporting Information [Line Items]
Total Revenues	4,204	3,460
Adjusted pre-tax income (loss)	924	892
Life and Retirement | Reportable Segments | Individual Retirement
Segment Reporting Information [Line Items]
Total Revenues	1,351	1,361
Adjusted pre-tax income (loss)	508	499
Life and Retirement | Reportable Segments | Group Retirement
Segment Reporting Information [Line Items]
Total Revenues	709	761
Adjusted pre-tax income (loss)	232	282
Life and Retirement | Reportable Segments | Life Insurance
Segment Reporting Information [Line Items]
Total Revenues	1,073	1,061
Adjusted pre-tax income (loss)	116	52
Life and Retirement | Reportable Segments | Institutional Markets
Segment Reporting Information [Line Items]
Total Revenues	1,071	277
Adjusted pre-tax income (loss)	68	59
Other Operations
Segment Reporting Information [Line Items]
Total Revenues	203	150
Adjusted pre-tax income (loss)	(387)	(342)
Legacy Portfolio
Segment Reporting Information [Line Items]
Total Revenues	706	836
Adjusted pre-tax income (loss)	$ 112	$ 145