CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS)
Net income (loss)	$ 931	$ 1,118	$ 1,880	$ 2,329
Other comprehensive income (loss), net of tax
Change in unrealized appreciation (depreciation) of fixed maturity securities on which other-than-temporary credit impairments were taken	(1,046)	119	(1,196)	233
Change in unrealized appreciation (depreciation) of all other investments	(756)	653	(3,464)	1,348
Change in foreign currency translation adjustments	(210)	398	(52)	122
Change in retirement plan liabilities adjustment	23	11	52	29
Change in fair value of liabilities under fair value option attributable to changes in own credit risk	(1)	0	1	0
Other comprehensive income (loss)	(1,990)	1,181	(4,659)	1,732
Comprehensive income (loss)	(1,059)	2,299	(2,779)	4,061
Comprehensive income (loss) attributable to noncontrolling interests	(6)	(12)	5	14
Comprehensive income (loss) attributable to AIG	$ (1,053)	$ 2,311	$ (2,784)	$ 4,047