Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011
Investments:
Fixed maturities, available for sale, at fair value (amortized cost: 2012 - $11,075,086 ; 2011 - $10,924,244)	$ 12,308,684	$ 11,888,205	[1]
Equity securities, at fair value (cost: 2012 - $14,875 ; 2011 - $14,875)	16,820	17,056	[1]
Policy loans	410,801	400,914	[1]
Other long-term investments	25,510	26,167	[1]
Short-term investments	109,541	21,244	[1]
Total investments	12,871,356	12,353,586	[1]
Cash	70,666	84,113	[1]
Accrued investment income	193,445	192,325	[1]
Other receivables	308,585	253,549	[1]
Deferred acquisition costs	2,966,272	2,916,732	[1]
Goodwill	396,891	396,891	[1]
Low-income housing interests	264,664	280,955	[1]
Other assets	113,124	110,121	[1]
Total assets	17,185,003	16,588,272	[1]
Liabilities:
Future policy benefits	9,820,893	9,572,257	[1]
Unearned and advance premiums	71,734	69,539	[1]
Policy claims and other benefits payable	221,652	222,254	[1]
Other policyholders' funds	92,984	92,487	[1]
Total policy liabilities	10,207,263	9,956,537	[1]
Current and deferred income taxes payable	1,460,827	1,319,853	[1]
Other liabilities	283,936	312,417	[1]
Short-term debt	319,829	224,842	[1]
Long-term debt (fair value: 2012 - $981,882 ; 2011 - $947,142)	791,066	790,571	[1]
Due to affiliates	124,421	124,421	[1]
Total liabilities	13,187,342	12,728,641	[1]
Shareholders' equity:
Preferred stock, par value $1 per share - Authorized 5,000,000 shares; outstanding: -0- in 2012 and in 2011	0	0	[1]
Common stock, par value $1 per share - Authorized 320,000,000 shares; outstanding: (2012 - 112,312,123 issued, less 16,938,875 held in treasury and 2011 - 112,312,123 issued, less 11,732,658 held in treasury)	112,312	112,312	[1]
Additional paid-in capital	443,630	425,331	[1]
Accumulated other comprehensive income (loss)	734,379	549,916	[1]
Retained earnings	3,462,272	3,264,711	[1]
Treasury stock, at cost	(754,932)	(492,639)	[1]
Total shareholders' equity	3,997,661	3,859,631	[1]
Total liabilities and shareholders' equity	$ 17,185,003	$ 16,588,272	[1]

[1] Derived from audited financial statements. Additionally, 2011 balances have been retrospectively adjusted to give effect to the adoption of new accounting guidance as described in Note F-Adoption of New Accounting Standard.