Consolidated Statements of Cash Flows (Unaudited) (USD $) In Millions	6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010
Cash flows from operating activities
Net income	$ 114.3	$ 82.1
Adjustments to reconcile net income to net cash provided by operating activities:
Net realized investment (gains) losses	(29.7)	3.2
Accretion and amortization of invested assets, net	23.3	18.9
Accrued interest on fixed maturities	(15.0)	(21.5)
Amortization and depreciation	12.8	11.5
Deferred	4.2	6.6
Interest credited on deposit contracts	453.4	440.0
Mortality and expense charges and administrative fees	(53.8)	(51.2)
Changes in:
Accrued investment income	(10.5)	(14.4)
Deferred policy acquisition costs, net	(24.0)	(35.1)
Other receivables	(8.3)	2.8
Future policy benefits	1.2	2.1
Policy and contract claims	9.8	(4.9)
Current income taxes	(1.4)	22.3
Other assets and liabilities	(25.8)	(27.0)
Other, net	0.8	1.4
Total adjustments	337.0	354.7
Net cash provided by operating activities	451.3	436.8
Purchases of:
Fixed maturities and marketable equity securities	(2,535.0)	(2,397.7)
Other invested assets and investments in limited partnerships	(16.1)	(23.4)
Issuances of mortgage loans	(425.7)	(179.6)
Issuances of policy loans	(6.5)	(8.6)
Maturities, calls, paydowns, and other	950.8	892.7
Sales of:
Fixed maturities and marketable equity securities	803.1	441.7
Other invested assets and investments in limited partnerships	12.1	6.3
Repayments of mortgage loans	52.1	37.5
Repayments of policy loans	8.0	9.7
Other, net	1.2	(1.8)
Net cash used in investing activities	(1,156.0)	(1,223.2)
Policyholder account balances:
Deposits	1,261.8	1,215.9
Withdrawals	(724.4)	(621.2)
Proceeds from issuance of common stock		282.5
Cash dividends paid on common stock	(15.1)	(6.9)
Acquisition of treasury stock		(0.6)
Other, net	(4.8)	(18.4)
Net cash provided by financing activities	517.5	851.3
Net increase (decrease) in cash and cash equivalents	(187.2)	64.9
Cash and cash equivalents at beginning of period	274.6	257.8
Cash and cash equivalents at end of period	87.4	322.7
Non-cash transactions during the period:
Investments in limited partnerships and capital obligations incurred	13.5	20.2
Bond exchanges	$ 69.8	$ 72.7