Condensed Consolidated Statements of Cash Flows (USD $) In Millions, unless otherwise specified	6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011
Net cash provided by operating activities	$ 552.6	$ 457.6
Proceeds from the sale, maturity, disposal or redemption of:
Fixed maturities	2,181.2	3,585.4
Equity securities, available-for-sale	1.2	14.6
Mortgage loans on real estate	233.0	132.6
Limited partnerships/corporations	119.5	48.2
Acquisition of:
Fixed maturities	(2,504.6)	(3,500.3)
Equity securities, available-for-sale	(0.7)	(4.4)
Mortgage loans on real estate	(569.6)	(480.3)
Limited partnerships/corporations	(17.5)	(24.3)
Derivatives, net	(16.5)	(26.0)
Policy loans, net	5.4	4.7
Short-term investments, net	(329.9)	(72.4)
Loan-Dutch State obligation, net	37.9	60.9
Collateral held, net	58.6	(4.6)
Sales (purchases) of fixed assets, net	(0.2)	(0.2)
Net cash provided by (used in) investing activities	(802.2)	(266.1)
Cash Flows from Financing Activities:
Deposits received for investment contracts	1,195.4	1,213.9
Maturities and withdrawals from investment contracts	(1,140.7)	(1,218.4)
Short-term loans to affiliates	0	284.9
Short-term repayments of repurchase agreements, net	648.0	135.8
Dividends to parent	(340.0)	0
Contribution of capital from parent	0	201.0
Net cash provided by (used in) financing activities	362.7	47.4
Net increase in cash and cash equivalents	113.1	238.9
Cash and cash equivalents, beginning of period	217.1
Cash and cash equivalents, end of period	$ 330.2	$ 469.9