Consolidated Statements Of Cash Flows (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Cash Flows from Operating Activities
Net income (loss)	$ 329	$ 239
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Deferred acquisition costs, value of business acquired, deferred sales inducements and deferred front-end loads deferrals and interest, net of amortization	(95)	(77)
Trading securities purchases, sales and maturities, net	11	12
Change in premiums and fees receivable	(84)	(60)
Change in accrued investment income	(87)	(63)
Change in future contract benefits and other contract holder funds	233	(208)
Change in reinsurance related assets and liabilities	21	(112)
Change in federal income tax accruals	48	66
Realized (gain) loss	18	59
Amortization of deferred gain on business sold through reinsurance	(19)	(19)
Other	(112)	(88)
Net cash provided by (used in) operating activities	263	(251)
Cash Flows from Investing Activities
Purchases of available-for-sale securities	(2,061)	(3,194)
Sales of available-for-sale securities	160	189
Maturities of available-for-sale securities	1,158	1,882
Purchases of other investments	(538)	(629)
Sales or maturities of other investments	645	573
Increase (decrease) in payables for collateral on investments	281	(74)
Other	(22)	(36)
Net cash provided by (used in) investing activities	(377)	(1,289)
Cash Flows from Financing Activities
Payment of long-term debt, including current maturities	(500)
Deposits of fixed account values, including the fixed portion of variable	2,481	2,517
Withdrawals of fixed account values, including the fixed portion of variable	(1,443)	(1,281)
Transfers to and from separate accounts, net	(743)	(684)
Common stock issued for benefit plans and excess tax benefits	(4)	(2)
Repurchase of common stock	(150)	(100)
Dividends paid to common and preferred stockholders	(42)	(33)
Net cash provided by (used in) financing activities	(401)	417
Net increase (decrease) in cash and invested cash, including discontinued operations	(515)	(1,123)
Cash and invested cash as of beginning-of-year	2,364	4,230
Cash and invested cash as of end-of-year	$ 1,849	$ 3,107