XML 44 R33.htm IDEA: XBRL DOCUMENT v3.20.2
Investments (Fixed Maturity Securities by Contractual Maturity) (Details) - USD ($)
$ in Thousands
Sep. 30, 2020
Dec. 31, 2019
Available-for-sale Securities, Debt Maturities, Amortized Cost Basis [Abstract]    
Fixed maturity securities, available for sale, due in one year or less, amortized cost $ 407,503  
Fixed maturity securities, available for sale, due after one year through five years, amortized cost 7,578,015  
Fixed maturity securities, available for sale, due after five years through ten years, amortized cost 9,199,283  
Fixed maturity securities, available for sale, due after ten years through twenty years, amortized cost 9,565,038  
Fixed maturity securities, available for sale, due after twenty years, amortized cost 7,130,210  
Fixed maturity securities, available for sale, securities with a single maturity date, amortized cost 33,880,049  
Fixed maturity securities, available for sale, amortized cost 47,132,615 [1] $ 48,238,946
Available-for-sale Securities, Debt Maturities, Fair Value [Abstract]    
Fixed maturity securities, available for sale, due in one year or less, fair value 412,652  
Fixed maturity securities, available for sale, due after one year through five years, fair value 8,011,902  
Fixed maturity securities, available for sale, due after five years through ten years, fair value 10,132,126  
Fixed maturity securities, available for sale, due after ten years through twenty years, fair value 11,525,282  
Fixed maturity securities, available for sale, due after twenty years, fair value 8,503,364  
Fixed maturity securities, available for sale, securities with a single maturity date, fair value 38,585,326  
Fixed maturity securities, available for sale, fair value 51,700,743 51,580,490
Residential Mortgage Backed Securities    
Available-for-sale Securities, Debt Maturities, Amortized Cost Basis [Abstract]    
Fixed maturity securities, available for sale, securities without a single maturity date, amortized cost 1,503,212  
Fixed maturity securities, available for sale, amortized cost 1,503,212 [1] 1,477,738
Available-for-sale Securities, Debt Maturities, Fair Value [Abstract]    
Fixed maturity securities, available for sale, securities without a single maturity date, fair value 1,623,073  
Fixed maturity securities, available for sale, fair value 1,623,073 1,575,664
Commercial Mortgage Backed Securities    
Available-for-sale Securities, Debt Maturities, Amortized Cost Basis [Abstract]    
Fixed maturity securities, available for sale, securities without a single maturity date, amortized cost 5,498,757  
Fixed maturity securities, available for sale, amortized cost 5,498,757 [1] 5,591,167
Available-for-sale Securities, Debt Maturities, Fair Value [Abstract]    
Fixed maturity securities, available for sale, securities without a single maturity date, fair value 5,478,783  
Fixed maturity securities, available for sale, fair value 5,478,783 5,786,279
Other Asset Backed Securities    
Available-for-sale Securities, Debt Maturities, Amortized Cost Basis [Abstract]    
Fixed maturity securities, available for sale, securities without a single maturity date, amortized cost 6,250,597  
Fixed maturity securities, available for sale, amortized cost 6,250,597 [1] 6,250,369
Available-for-sale Securities, Debt Maturities, Fair Value [Abstract]    
Fixed maturity securities, available for sale, securities without a single maturity date, fair value 6,013,561  
Fixed maturity securities, available for sale, fair value $ 6,013,561 $ 6,162,156
[1] (1) Amortized cost excludes accrued interest receivable of $434.3 million as of September 30, 2020.