Consolidated Balance Sheets (USD $) In Millions	Jun. 30, 2011	Dec. 31, 2010
Available-for-sale securities:
Fixed maturities, at fair value (amortized cost: $20,982.1 and $20,416.5, respectively)	$ 22,146.5	$ 21,281.8
Marketable equity securities, at fair value (cost: $52.8 and $52.8, respectively)	51.2	45.1
Trading securities:
Marketable equity securities, at fair value (cost: $355.6 and $168.0, respectively)	380.9	189.3
Mortgage loans, net	2,085.0	1,713.0
Policy loans	69.6	71.5
Investments in limited partnerships (includes $30.4 and $36.5 measured at fair value, respectively)	193.8	186.9
Other invested assets	14.5	12.6
Total investments	24,941.5	23,500.2
Cash and cash equivalents	87.4	274.6
Accrued investment income	268.1	257.6
Accounts receivable and other receivables	97.5	65.6
Reinsurance recoverables	288.8	280.8
Deferred policy acquisition costs	238.5	250.0
Goodwill	29.4	28.4
Current income taxes recoverable	4.4	3.0
Other assets	99.9	95.0
Separate account assets	887.3	881.7
Total assets	26,942.8	25,636.9
LIABILITIES AND STOCKHOLDERS' EQUITY
Funds held under deposit contracts	21,909.0	20,953.3
Future policy benefits	399.6	398.4
Policy and contract claims	126.4	116.6
Unearned premiums	12.6	12.2
Other policyholders' funds	109.5	111.0
Notes payable	449.1	449.0
Deferred income tax liabilities, net	192.2	99.0
Other liabilities	209.8	235.1
Separate account liabilities	887.3	881.7
Total liabilities	24,295.5	23,256.3
Commitments and contingencies (Note 10)
Preferred stock, $0.01 par value; 10,000,000 shares authorized; none issued	0	0
Common stock, $0.01 par value; 750,000,000 shares authorized; 118,570,964 issued and outstanding as of June 30, 2011; 118,216,470 issued and 118,215,701 outstanding as of December 31, 2010	1.2	1.2
Additional paid-in capital	1,452.3	1,450.2
Retained earnings	595.9	496.7
Accumulated other comprehensive income, net of taxes	597.9	432.5
Total stockholders' equity	2,647.3	2,380.6
Total liabilities and stockholders' equity	$ 26,942.8	$ 25,636.9