CONDENSED CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY (USD $) In Millions, unless otherwise specified	Total	Preferred stock additional capital paid-in	Common stock	Additional capital paid-in	Retained income	Deferred ESOP expense	Treasury stock	Accumulated other comprehensive income
Balance, beginning of period at Dec. 31, 2012				$ 3,162	$ 33,783	$ (41)	$ (17,508)	$ 1,175
Increase (decrease) in equity
Forward contract on accelerated share repurchase agreement				(75)
Equity incentive plans activity				(59)
Net income	709				709
Dividends on common stock					(117)
Payments						2
Shares acquired							(652)
Shares reissued under equity incentive plans, net							127
Change in unrealized net capital gains and losses	71							71
Change in unrealized foreign currency translation adjustments	(12)							(12)
Change in unrecognized pension and other postretirement benefit cost	45							45
Balance, end of period at Mar. 31, 2013	20,619		9	3,028	34,375	(39)	(18,033)	1,279
Balance, beginning of period at Dec. 31, 2013		780		3,143	35,580	(31)	(19,047)	1,046
Increase (decrease) in equity
Forward contract on accelerated share repurchase agreement				(113)
Equity incentive plans activity				(13)
Preferred stock issuance		725
Net income	600				600
Dividends on common stock					(126)
Dividends on preferred stock					(13)
Shares acquired							(987)
Shares reissued under equity incentive plans, net							112
Change in unrealized net capital gains and losses	445							445
Change in unrealized foreign currency translation adjustments	(16)							(16)
Change in unrecognized pension and other postretirement benefit cost	11							11
Balance, end of period at Mar. 31, 2014	$ 22,105	$ 1,505	$ 9	$ 3,017	$ 36,041	$ (31)	$ (19,922)	$ 1,486