BUSINESS COMBINATION (Details - Narrative) - USD ($) $ in Millions		3 Months Ended
	Jul. 18, 2018	Mar. 31, 2019	Mar. 31, 2018	Dec. 31, 2018
Business Acquisition [Line Items]
Revenues		$ 12,456	$ 11,712
Net income		937	949
Net income (loss) attributable to AIG		654	$ 938
Other invested assets		19,343		$ 19,341
Validus Holding Ltd [Member]
Business Acquisition [Line Items]
Interest acquired	100.00%
Cash consideration paid	$ 5,500
Validus Holding Ltd [Member] | North America Operating Segment [Member]
Business Acquisition [Line Items]
Goodwill	1,800
Validus Holding Ltd [Member] | International Operating Segment [Member]
Business Acquisition [Line Items]
Goodwill	$ 157
AlphaCat [Member]
Business Acquisition [Line Items]
Other invested assets		$ 124