CONSOLIDATED STATEMENTS OF EQUITY - USD ($) $ in Millions	Total	Total AIG Shareholders' Equity	Common Stock	Treasury Stock	Additional Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive Income	Non redeemable Non-controlling Interests
Balance at Dec. 31, 2016	$ 76,858	$ 76,300	$ 4,766	$ (41,471)	$ 81,064	$ 28,711	$ 3,230	$ 558
Increase (Decrease) in Stockholders' Equity
Common stock issued under stock plans	(164)	(164)	0	140	(304)	0	0	0
Purchase of common stock	(6,000)	(6,000)	0	(6,000)	0	0	0	0
Net income (loss) attributable to AIG or noncontrolling interests	2,329	2,315	0	0	0	2,315	0	14
Dividends	(597)	(597)	0	0	0	(597)	0	0
Other Comprehensive Income (Loss)	1,732	1,732	0	0	0	0	1,732	0
Current and deferred income taxes	(4)	(4)	0	0	(4)	0	0	0
Net increase due to acquisitions and consolidations	46	0	0	0	0	0	0	46
Contributions from noncontrolling interests	14	0	0	0	0	0	0	14
Distributions to noncontrolling interests	(82)	0	0	0	0	0	0	(82)
Other	192	150	0	2	157	(9)	0	42
Balance at Jun. 30, 2017	74,324	73,732	4,766	(47,329)	80,913	30,420	4,962	592
Balance at Dec. 31, 2017	65,708	65,171	4,766	(47,595)	81,078	21,457	5,465	537
Increase (Decrease) in Stockholders' Equity
Common stock issued under stock plans	(150)	(150)	0	187	(337)	0	0	0
Purchase of common stock	(646)	(646)	0	(646)	0	0	0	0
Net income (loss) attributable to AIG or noncontrolling interests	1,880	1,875	0	0	0	1,875	0	5
Dividends	(575)	(575)	0	0	0	(575)	0	0
Other Comprehensive Income (Loss)	(4,659)	(4,659)	0	0	0	0	(4,659)	0
Net increase due to acquisitions and consolidations	98	0	0	0	0	0	0	98
Contributions from noncontrolling interests	3	0	0	0	0	0	0	3
Distributions to noncontrolling interests	(27)	0	0	0	0	0	0	(27)
Other	173	178	0	2	183	(7)	0	(5)
Balance at Jun. 30, 2018	61,797	61,186	4,766	(48,052)	80,924	23,318	230	611
Increase (Decrease) in Stockholders' Equity
Cumulative effect of change in accounting principle, net of tax	$ (8)	$ (8)	$ 0	$ 0	$ 0	$ 568	$ (576)	$ 0