Schedule II Condensed Financial Information of Registrant - Parent Company Only (Details 2) (USD $) In Millions, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Revenues:
Change in fair value of ML III										$ 0	$ 2,888
Net realized capital gains (losses)									739	1,939	1,087
Expenses
Interest expense									1,718	2,142	2,319
Net losses on extinguishment of debt	1,268	742	34	238	192	81	38	340	2,282	651	32
Income from continuing operations before income tax expense (benefit)									10,501	9,368	2,891
Income tax expense (benefit)									2,927	360	(808)
Net income (loss) attributable to AIG from continuing operations									7,579	9,001	3,437
Income (loss) from discontinued operations	(35)	2	30	(47)	11	(18)	18	73	(50)	84	1
Net income attributable to AIG	655	2,192	3,073	1,609	1,978	2,170	2,731	2,206	7,529	9,085	3,438
Parent Company [Member]
Revenues:
Equity in undistributed net income (loss) of consolidated subsidiaries									(5,573)	(2,226)	(8,740)
Dividend income from consolidated subsidiaries									15,023	9,864	10,710
Interest income									305	387	358
Change in fair value of ML III									0	0	2,287
Net realized capital gains (losses)									8	169	747
Other income									1,345	931	806
Expenses
Interest expense									1,507	1,938	2,257
Net losses on extinguishment of debt									2,248	580	9
Other expenses									1,546	1,520	1,602
Income from continuing operations before income tax expense (benefit)									5,807	5,087	2,300
Income tax expense (benefit)									(1,735)	(4,012)	(1,137)
Net income (loss) attributable to AIG from continuing operations									7,542	9,099	3,437
Income (loss) from discontinued operations									(13)	(14)	1
Net income attributable to AIG									$ 7,529	$ 9,085	$ 3,438