Consolidated Statements Of Cash Flows (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Cash Flows from Operating Activities
Net income (loss)	$ 300	$ 329
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	(42)	(95)
Trading securities purchases, sales and maturities, net	12	11
Change in premiums and fees receivable	21	(84)
Change in accrued investment income	(80)	(87)
Change in future contract benefits and other contract holder funds	162	233
Change in reinsurance related assets and liabilities	(178)	21
Change in federal income tax accruals	(28)	48
Realized (gain) loss	48	18
Amortization of deferred gain on business sold through reinsurance	(18)	(19)
Other	99	(112)
Net cash provided by (used in) operating activities	296	263
Cash Flows from Investing Activities
Purchases of available-for-sale securities	(2,629)	(2,061)
Sales of available-for-sale securities	142	160
Maturities of available-for-sale securities	1,041	1,158
Purchases of other investments	(3,646)	(538)
Sales or maturities of other investments	3,455	645
Increase (decrease) in payables for collateral on investments	634	281
Other	(32)	(22)
Net cash provided by (used in) investing activities	(1,035)	(377)
Cash Flows from Financing Activities
Payment of long-term debt, including current maturities		(500)
Issuance of long-term debt, net of issuance costs	298
Deposits of fixed account values, including the fixed portion of variable	2,464	2,481
Withdrawals of fixed account values, including the fixed portion of variable	(1,408)	(1,443)
Transfers to and from separate accounts, net	(657)	(743)
Common stock issued for benefit plans and excess tax benefits	12	(4)
Repurchase of common stock	(350)	(150)
Dividends paid to common stockholders	(52)	(42)
Net cash provided by (used in) financing activities	307	(401)
Net increase (decrease) in cash and invested cash	(432)	(515)
Cash and invested cash as of beginning-of-year	3,919	2,364
Cash and invested cash as of end-of-period	$ 3,487	$ 1,849