CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Cash flows from operating activities
Net income	$ 2,280	$ 2,306	$ 787
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation, amortization and other non-cash items	368	388	252
Realized capital gains and losses	(594)	(327)	(503)
Loss on extinguishment of debt	491
Loss (gain) on disposition of operations	688	(18)	7
Interest credited to contractholder funds	1,278	1,316	1,645
Changes in:
Policy benefits and other insurance reserves	(55)	214	(77)
Unearned premiums	602	306	37
Deferred policy acquisition costs	(268)	(18)	177
Premium installment receivables, net	(205)	(125)	33
Reinsurance recoverables, net	(729)	(1,560)	(716)
Income taxes	573	698	133
Other operating assets and liabilities	(187)	(126)	154
Net cash provided by operating activities	4,242	3,054	1,929
Proceeds from sales
Fixed income securities	21,243	18,872	29,436
Equity securities	3,173	1,495	2,012
Limited partnership interests	1,045	1,398	1,000
Mortgage loans	24	14	97
Other investments	151	148	164
Investment collections
Fixed income securities	5,908	5,417	4,951
Mortgage loans	1,020	1,064	634
Other investments	275	128	123
Investment purchases
Fixed income securities	(24,087)	(22,658)	(27,896)
Equity securities	(3,677)	(671)	(1,824)
Limited partnership interests	(1,312)	(1,524)	(1,696)
Mortgage loans	(538)	(525)	(1,241)
Other investments	(1,084)	(665)	(204)
Change in short-term investments, net	(427)	(698)	2,182
Change in other investments, net	97	58	(415)
Purchases of property and equipment, net	(207)	(285)	(246)
(Acquisition) disposition of operations, net of cash acquired	(24)	13	(916)
Net cash provided by investing activities	1,580	1,581	6,161
Cash flows from financing activities
Proceeds from issuance of long-term debt	2,271	493	7
Repayment of long-term debt	(2,627)	(352)	(7)
Proceeds from issuance of preferred stock	781
Contractholder fund deposits	2,174	2,158	2,176
Contractholder fund withdrawals	(6,556)	(5,519)	(8,680)
Dividends paid on common stock	(352)	(534)	(435)
Dividends paid on preferred stock	(6)
Treasury stock purchases	(1,834)	(913)	(953)
Shares reissued under equity incentive plans, net	170	85	19
Excess tax benefits on share-based payment arrangements	38	10	(5)
Other	(12)	(33)	2
Net cash used in financing activities	(5,953)	(4,605)	(7,876)
Net (decrease) increase in cash	(131)	30	214
Cash at beginning of year	806	776	562
Cash at end of year	$ 675	$ 806	$ 776