CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Cash Flows from Operating Activities
Net income (loss)	$ 245	$ 314
Adjustments to reconcile net income (loss) to net cash provided by operating activities
Deferred acquisition costs, value of business acquired, deferred sales inducements and deferred front-end loads deferrals and interest, net of amortization	(44)	(31)
Trading securities purchases, sales and maturities, net	15	5
Change in premiums and fees receivable	(29)	(66)
Change in accrued investment income	(45)	(56)
Change in future contract benefits and other contract holder funds	(144)	124
Change in reinsurance related assets and liabilities	(2)	(67)
Change in federal income tax accruals	185	131
Realized gain (loss)	85	(2)
Amortization of deferred gain on business sold through reinsurance	(19)	(19)
(Gain) loss on disposal of discontinued operations	1	0
Other	34	7
Net cash provided by (used in) operating activities	282	340
Cash Flows from Investing Activities
Purchases of available-for-sale securities	(2,497)	(3,111)
Sales of available-for-sale securities	185	556
Maturities of available-for-sale securities	1,341	1,431
Purchases of other investments	(830)	(855)
Sales or maturities of other investments	780	740
Increase (decrease) in payables for collateral on investments	(858)	(105)
Other	(34)	(23)
Net cash provided by (used in) investing activities	(1,913)	(1,367)
Cash Flows from Financing Activities
Issuance of long-term debt, net of issuance costs	298	0
Deposits of fixed account values, including the fixed portion of variable	2,391	2,570
Withdrawals of fixed account values, including the fixed portion of variable	(1,320)	(1,200)
Transfers to and from separate accounts, net	(556)	(772)
Common stock issued for benefit plans and excess tax benefits	(3)	(5)
Repurchase of common stock	(150)	(75)
Dividends paid to common and preferred stockholders	(23)	(16)
Net cash provided by (used in) financing activities	637	502
Net increase (decrease) in cash and invested cash, including discontinued operations	(994)	(525)
Cash and invested cash, including discontinued operations, as of beginning-of-year	4,510	2,741
Cash and invested cash, including discontinued operations, as of end-of-period	$ 3,516	$ 2,216