CONDENSED CONSOLIDATED BALANCE SHEETS (USD $) In Thousands, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
Fixed maturity securities:
Available-for-sale at fair value (amortized cost of $20,497,524 and $20,270,734)	$ 22,157,182	$ 21,474,136
Mortgage loans on real estate (net of allowances of $8,466 and $10,106)	2,526,228	2,486,680
Policy loans	1,296,897	1,244,469
Funds withheld at interest	5,814,231	5,771,467
Short-term investments	118,789	139,395
Other invested assets	1,234,779	1,324,960
Total investments	33,148,106	32,441,107
Cash and cash equivalents	1,127,132	923,647
Accrued investment income	233,816	267,908
Premiums receivable and other reinsurance balances	1,454,959	1,439,528
Reinsurance ceded receivables	594,794	594,515
Deferred policy acquisition costs	3,450,523	3,517,796
Other assets	532,251	489,972
Total assets	40,541,581	39,674,473
Liabilities and Stockholders’ Equity
Future policy benefits	11,887,951	11,866,776
Interest-sensitive contract liabilities	12,809,003	12,947,557
Other policy claims and benefits	3,899,004	3,571,761
Other reinsurance balances	283,249	275,138
Deferred income taxes	2,023,588	1,837,577
Other liabilities	638,967	541,035
Short-term Debt	50,000	0
Long-term debt	2,214,526	2,214,350
Collateral finance facility	484,747	484,752
Total liabilities	34,291,035	33,738,946
Commitments and contingent liabilities (See Note 8)
Stockholders’ Equity:
Preferred stock - par value $.01 per share, 10,000,000 shares authorized, no shares issued or outstanding	0	0
Common stock - par value $.01 per share, 140,000,000 shares authorized, 79,137,758 shares issued at March 31, 2014 and December 31, 2013	791	791
Additional paid-in-capital	1,782,838	1,777,906
Retained earnings	3,772,776	3,659,938
Treasury stock, at cost - 9,623,749 and 8,369,540 shares	(585,358)	(508,715)
Accumulated other comprehensive income	1,279,499	1,005,607
Total stockholders’ equity	6,250,546	5,935,527
Total liabilities and stockholders’ equity	$ 40,541,581	$ 39,674,473