Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Investments:
Fixed maturity securities, available for sale, at fair value (amortized cost of $47,132,615 as of 2020 and $48,238,946 as of 2019; allowance for credit losses of $61,619 as of 2020)	$ 51,700,743	$ 51,580,490
Mortgage loans on real estate (net of allowance for credit losses of $19,279 as of 2020 and $9,179 as of 2019)	3,926,699	3,448,793
Derivative instruments	874,741	1,355,989
Other investments	495,740	492,301
Total investments	56,997,923	56,877,573
Cash and cash equivalents	2,656,632	2,293,392
Coinsurance deposits (net of allowance for credit losses of $2,648 as of 2020 and $0 as of 2019)	4,886,705	5,115,013
Accrued investment income	452,647	472,826
Deferred policy acquisition costs	2,163,003	2,923,454
Deferred sales inducements	1,426,945	1,966,723
Income taxes recoverable	34,773	0
Other assets	46,448	47,571
Total assets	68,665,076	69,696,552
Liabilities:
Policy benefit reserves	60,109,669	61,893,945
Other policy funds and contract claims	242,159	256,105
Notes payable	495,528	495,116
Subordinated debentures	78,037	157,265
Deferred income taxes	512,428	177,897
Income taxes payable	0	429
Other liabilities	1,108,521	2,145,676
Total liabilities	62,546,342	65,126,433
Stockholders' equity:
Common stock; par value $1 per share; 200,000,000 shares authorized; issued and outstanding: 2020 - 91,931,837 shares (excluding 1,169,901 treasury shares); 2019 - 91,107,555 shares (excluding 1,344,193 treasury shares)	91,932	91,107
Additional paid-in capital	1,510,987	1,212,311
Accumulated other comprehensive income	2,112,111	1,497,921
Retained earnings	2,403,676	1,768,764
Total stockholders' equity	6,118,734	4,570,119
Total liabilities and stockholders' equity	68,665,076	69,696,552
Preferred Stock, Series A
Stockholders' equity:
Preferred stock	16	16
Preferred Stock, Series B
Stockholders' equity:
Preferred stock	$ 12	$ 0