Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Investments:
Fixed maturities, available-for-sale, at fair value (amortized cost $16,756,216 and $15,586,970)	$ 18,188,344	$ 16,589,783
Fixed maturities, held for trading, at fair value (amortized cost $356,012 and $134,591)	367,600	147,526
Mortgage loans on real estate (net of allowances of $2,890 and $21,130)	2,881,758	2,513,087
Policy loans	4,260,200	4,219,849
Short-term investments, available-for-sale (amortized cost $266,332 and $332,764)	266,332	332,764
Limited partnership and other corporation interests	124,814	169,233
Other investments	21,328	22,990
Total investments	26,110,376	23,995,232
Other assets:
Cash	11,387	7,593
Reinsurance receivable	638,797	616,336
Deferred acquisition costs and value of business acquired	204,461	219,833
Investment income due and accrued	257,028	248,114
Collateral under securities lending agreements	142,022	7,099
Due from parent and affiliates	82,828	114,697
Goodwill	105,255	105,255
Other intangible assets	18,249	21,855
Other assets	609,623	505,401
Assets of discontinued operations	33,053	39,621
Separate account assets	24,605,526	22,331,391
Total assets	52,818,605	48,212,427
Policy benefit liabilities:
Future policy benefits	23,480,618	21,828,274
Policy and contract claims	321,375	310,455
Policyholders' funds	374,821	382,816
Provision for policyholders' dividends	63,102	64,710
Undistributed earnings on participating business	10,393	11,105
Total policy benefit liabilities	24,250,309	22,597,360
General liabilities:
Due to parent and affiliates	544,447	538,561
Commercial paper	97,987	97,536
Payable under securities lending agreements	142,022	7,099
Deferred income tax liabilities, net	288,995	154,464
Other liabilities	719,969	532,327
Liabilities of discontinued operations	33,053	39,616
Separate account liabilities	24,605,526	22,331,391
Total liabilities	50,682,308	46,298,354
Commitments and contingencies
Stockholder's equity:
Preferred stock, $1 par value, 50,000,000 shares authorized; none issued and outstanding
Common stock, $1 par value, 50,000,000 shares authorized; 7,032,000 shares issued and outstanding	7,032	7,032
Additional paid-in capital	771,041	768,247
Accumulated other comprehensive income	635,699	469,982
Retained earnings	722,525	668,812
Total stockholder's equity	2,136,297	1,914,073	[1]
Total liabilities and stockholder's equity	$ 52,818,605	$ 48,212,427

[1] As adjusted; See Note 1