Consolidated Statements of Equity - USD ($) $ in Millions	Total	Total AIG Shareholders' Equity	Preferred Stock and Additional Paid-In Capital	Common Stock	Treasury Stock	Additional Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive Income (Loss)	Non redeemable Non-controlling Interests
Cumulative effect of change in accounting principle, net of tax	$ (8)	$ (8)	$ 0	$ 0	$ 0	$ 0	$ 568	$ (576)	$ 0
Balance at Dec. 31, 2017	65,708	65,171	0	4,766	(47,595)	81,078	21,457	5,465	537
Common stock issued under stock plans	(150)	(150)	0	0	186	(336)	0	0	0
Purchase of common stock	(298)	(298)	0	0	(298)	0	0	0	0
Net income (loss) attributable to AIG or other noncontrolling interests	949	938	0	0	0	0	938	0	11
Dividends	(289)	(289)	0	0	0	0	(289)	0	0
Other comprehensive income (loss)	(2,669)	(2,669)	0	0	0	0	0	(2,669)	0
Current and deferred income taxes	0	0	0	0	0	0	0	0	0
Net increase due to acquisitions and consolidations	36	0	0	0	0	0	0	0	36
Contributions from noncontrolling interests	10	0	0	0	0	0	0	0	10
Distributions to noncontrolling interests	(25)	0	0	0	0	0	0	0	(25)
Other	93	97	0	0	1	99	(3)	0	(4)
Balance at Mar. 31, 2018	63,357	62,792	0	4,766	(47,706)	80,841	22,671	2,220	565
Balance at Dec. 31, 2018	57,309	56,361	0	4,766	(49,144)	81,268	20,884	(1,413)	948
Preferred stock issued	485	485	485	0	0	0	0	0	0
Common stock issued under stock plans	(77)	(77)	0	0	145	(222)	0	0	0
Purchase of common stock	0	0	0	0	0	0	0	0	0
Net income (loss) attributable to AIG or other noncontrolling interests	937	654	0	0	0	0	654	0	283
Dividends	(278)	(278)	0	0	0	0	(278)	0	0
Other comprehensive income (loss)	3,547	3,541	0	0	0	0	0	3,541	6
Current and deferred income taxes	(1)	(1)	0	0	0	(1)	0	0	0
Net increase due to acquisitions and consolidations	108	0	0	0	0	0	0	0	108
Contributions from noncontrolling interests	12	0	0	0	0	0	0	0	12
Distributions to noncontrolling interests	(59)	0	0	0	0	0	0	0	(59)
Other	110	102	0	0	0	103	(1)	0	8
Balance at Mar. 31, 2019	$ 62,093	$ 60,787	$ 485	$ 4,766	$ (48,999)	$ 81,148	$ 21,259	$ 2,128	$ 1,306