CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Statement of Comprehensive Income [Abstract]
Net income	$ 355	$ 645	$ 1,032	$ 1,245
Changes in:
Unrealized net capital gains and losses	(718)	59	(507)	504
Unrealized foreign currency translation adjustments	(9)	13	(36)	(3)
Unrecognized pension and other postretirement benefit cost	20	8	49	19
Other comprehensive (loss) income, after-tax	(707)	80	(494)	520
Comprehensive (loss) income	$ (352)	$ 725	$ 538	$ 1,765