Investments-Unrealized Net Capitla Gains and Losses (Details 9) - USD ($) $ in Millions	Jun. 30, 2015	Dec. 31, 2014
Fair value
Fixed income securities	$ 26,384	$ 28,117
Equity securities	923	970
Short-term investments	935	857
Derivative instruments	7	2
Gross unrealized Gains
Fixed income securities	1,865	2,486
Equity securities	46	57
Short-term investments	0	0
Derivative instruments	7	3
Gross unrealized Losses
Fixed income securities	(248)	(191)
Equity securities	(29)	(14)
Short-term investments	0	0
Derivative instruments	0	(1)
Unrealized net gains (losses)
Fixed income securities	1,617	2,295
Equity securities	17	43
Short-term investments	0	0
Derivative instruments	7	2
Equity method ("EMA") limited partnerships	(3)	(2)
Unrealized net capital gains and losses, pre-tax	1,638	2,338
Amount recognized for:
Insurance reserves	0	(28)
DAC and DSI	(112)	(176)
Amounts recognized	(112)	(204)
Deferred income taxes	(539)	(752)
Total unrealized net capital gains and losses	987	1,382
Fair value of derivative securities classified as assets, with unrealized net gains (losses) in AOCI	3	3
Fair value of derivative securities classified as liabilities, with unrealized net gains (losses) in AOCI	$ (4)	$ 1