Fair Value of Assets and Liabilities (Details 4) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Fair Value Liabilities Measured on Recurring Basis Unobservable Input Reconciliation Calculation
Balance at the beginning of the period	$ (326)	$ (549)	$ (323)	$ (553)
Total gains (losses) included in: net income	9	(12)	5	3
Transfer to held for sale		230		230
Purchases/Issues		(2)		(17)
Settlements	2	2	4	6
Balance at the end of the period	(315)	(331)	(315)	(331)
Derivatives embedded in life and annuity contracts
Fair Value Liabilities Measured on Recurring Basis Unobservable Input Reconciliation Calculation
Balance at the beginning of the period	(326)	(319)	(323)	(307)
Total gains (losses) included in: net income	9	(12)	5	(14)
Transfer to held for sale		0		0
Purchases/Issues		(2)		(13)
Settlements	2	2	4	3
Balance at the end of the period	(315)	(331)	(315)	(331)
Liabilities held for sale
Fair Value Liabilities Measured on Recurring Basis Unobservable Input Reconciliation Calculation
Balance at the beginning of the period		(230)		(246)
Total gains (losses) included in: net income	$ 0	0	$ 0	17
Transfer to held for sale		230		230
Purchases/Issues		0		(4)
Settlements		0		3
Balance at the end of the period		$ 0		$ 0