EQUITY (Details - Shares Outstanding) - USD ($) $ / shares in Units, $ in Millions													12 Months Ended
	Dec. 22, 2017	Sep. 29, 2017	Jun. 28, 2017	Mar. 29, 2017	Dec. 22, 2016	Sep. 29, 2016	Jun. 27, 2016	Mar. 28, 2016	Dec. 21, 2015	Sep. 28, 2015	Jun. 25, 2015	Mar. 26, 2015	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	May 03, 2017
The following table presents a roll forward of outstanding shares:
Shares, beginning of year													(911,335,651)
Shares, beginning of year													1,906,671,492
Shares, beginning of year													995,335,841	1,193,916,617	1,375,926,971
Issuances (in shares)													3,386,462	2,069,110	371,806
Shares repurchased													(99,677,646)	(200,649,886)	(182,382,160)
Shares, end of period													(1,007,626,835)	(911,335,651)
Shares, end of period													1,906,671,492	1,906,671,492
Shares, end of period													899,044,657	995,335,841	1,193,916,617
The following table presents record date, payment date and dividends paid per share on AIG Common Stock:
Dividend paid (in dollars per share)	$ 0.32	$ 0.32	$ 0.32	$ 0.32	$ 0.32	$ 0.32	$ 0.32	$ 0.32	$ 0.28	$ 0.28	$ 0.125	$ 0.125
Date of Shareholders of Record	Dec. 08, 2017	Sep. 15, 2017	Jun. 14, 2017	Mar. 15, 2017	Dec. 08, 2016	Sep. 15, 2016	Jun. 13, 2016	Mar. 14, 2016	Dec. 07, 2015	Sep. 14, 2015	Jun. 11, 2015	Mar. 12, 2015
Authorized amount of common Stock share repurchase																$ 2,500
Aggregate remaining authorization amount of common Stock share repurchase													$ 2,300
Shares repurchased (in shares)													99,677,646	200,649,886	182,382,160
Payments for Repurchase of Common Stock													$ 6,275	$ 11,460	$ 10,691
Amount paid to purchase warrants													$ 3	$ 309	$ 0
Warrants repurchased													185,000	17,000,000	0
Subsequent event
The following table presents record date, payment date and dividends paid per share on AIG Common Stock:
Date of Shareholders of Record													Mar. 15, 2018
Common Stock Issued
The following table presents a roll forward of outstanding shares:
Shares, beginning of year													1,906,671,492	1,906,671,492	1,906,671,492
Issuances (in shares)													0	0	0
Shares repurchased													0	0	0
Shares, end of period													1,906,671,492	1,906,671,492	1,906,671,492
The following table presents record date, payment date and dividends paid per share on AIG Common Stock:
Shares repurchased (in shares)													0	0	0
Treasury Stock
The following table presents a roll forward of outstanding shares:
Shares, beginning of year													(911,335,651)	(712,754,875)	(530,744,521)
Issuances (in shares)													3,386,462	2,069,110	371,806
Shares repurchased													(99,677,646)	(200,649,886)	(182,382,160)
Shares, end of period													(1,007,626,835)	(911,335,651)	(712,754,875)
The following table presents record date, payment date and dividends paid per share on AIG Common Stock:
Shares repurchased (in shares)													99,677,646	200,649,886	182,382,160