CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical - equity) (USD $) In Millions, except Share data, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
AIG shareholders' equity:
Common stock, par value (in dollars per share)	$ 2.5	$ 2.5
Common stock, shares authorized	5,000,000,000	5,000,000,000
Common stock, shares issued	1,906,671,492	1,906,645,689
Treasury stock, shares of common stock	502,898,541	442,582,366
Non-redeemable noncontrolling interests, associated with businesses held for sale	$ 0	$ 100