SEGMENT INFORMATION (Details - Schedule of continuing operations by operating segment) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Segment Reporting Information [Line Items]
Total Revenues	$ 14,443	$ 12,456
Adjusted Pre-tax Income (Loss)	2,558	1,154
AIG Consolidation and Eliminations
Segment Reporting Information [Line Items]
Total Revenues	(145)	(97)
Adjusted Pre-tax Income (Loss)	(84)	(70)
Total AIG Consolidated adjusted revenues and adjusted pre-tax income (loss)
Segment Reporting Information [Line Items]
Total Revenues	11,120	12,754
Adjusted Pre-tax Income (Loss)	172	1,847
General Insurance | Reportable Segments
Segment Reporting Information [Line Items]
Total Revenues	6,667	7,802
Adjusted Pre-tax Income (Loss)	501	1,268
General Insurance | Reportable Segments | North America
Segment Reporting Information [Line Items]
Total Revenues	3,414	4,098
Adjusted Pre-tax Income (Loss)	409	934
General Insurance | Reportable Segments | International
Segment Reporting Information [Line Items]
Total Revenues	3,253	3,704
Adjusted Pre-tax Income (Loss)	92	334
Life and Retirement | Reportable Segments
Segment Reporting Information [Line Items]
Total Revenues	4,172	4,204
Adjusted Pre-tax Income (Loss)	574	924
Life and Retirement | Reportable Segments | Individual Retirement
Segment Reporting Information [Line Items]
Total Revenues	1,370	1,351
Adjusted Pre-tax Income (Loss)	306	508
Life and Retirement | Reportable Segments | Group Retirement
Segment Reporting Information [Line Items]
Total Revenues	694	709
Adjusted Pre-tax Income (Loss)	143	232
Life and Retirement | Reportable Segments | Life Insurance
Segment Reporting Information [Line Items]
Total Revenues	1,091	1,073
Adjusted Pre-tax Income (Loss)	55	116
Life and Retirement | Reportable Segments | Institutional Markets
Segment Reporting Information [Line Items]
Total Revenues	1,017	1,071
Adjusted Pre-tax Income (Loss)	70	68
Other Operations
Segment Reporting Information [Line Items]
Total Revenues	162	139
Adjusted Pre-tax Income (Loss)	(451)	(387)
Legacy Portfolio
Segment Reporting Information [Line Items]
Total Revenues	264	706
Adjusted Pre-tax Income (Loss)	$ (368)	$ 112