XML 52 R41.htm IDEA: XBRL DOCUMENT v3.21.1
Investments (Credit Losses Recognized In Earnings on Fixed Maturity Securities Held by the Company) (Details) - Fixed maturities - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Available-for-sale    
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Line Items]    
Balance, beginning of period $ 133 $ 0
Additions to allowance for credit losses not previously recorded 31 158
Reductions for securities sold during the period (26)  
Additions (reductions) on securities with previous allowance (7)  
Balance, ending of period 131 158
Available-for-sale | U.S. Treasury securities and obligations of U.S. government authorities and agencies    
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Line Items]    
Balance, beginning of period 0 0
Additions to allowance for credit losses not previously recorded 0 0
Reductions for securities sold during the period 0  
Additions (reductions) on securities with previous allowance 0  
Balance, ending of period 0 0
Available-for-sale | Foreign government bonds    
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Line Items]    
Balance, beginning of period 0 0
Additions to allowance for credit losses not previously recorded 0 38
Reductions for securities sold during the period 0  
Additions (reductions) on securities with previous allowance 0  
Balance, ending of period 0 38
Available-for-sale | U.S. and Foreign Corporate Securities    
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Line Items]    
Balance, beginning of period 123 0
Additions to allowance for credit losses not previously recorded 31 119
Reductions for securities sold during the period (26)  
Additions (reductions) on securities with previous allowance (6)  
Balance, ending of period 122 119
Available-for-sale | Asset-backed securities    
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Line Items]    
Balance, beginning of period 0 0
Additions to allowance for credit losses not previously recorded 0 0
Reductions for securities sold during the period 0  
Additions (reductions) on securities with previous allowance 0  
Balance, ending of period 0 0
Available-for-sale | Commercial mortgage-backed securities    
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Line Items]    
Balance, beginning of period 10 0
Additions to allowance for credit losses not previously recorded 0 1
Reductions for securities sold during the period 0  
Additions (reductions) on securities with previous allowance (1)  
Balance, ending of period 9 1
Available-for-sale | Residential mortgage-backed securities    
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Line Items]    
Balance, beginning of period 0 0
Additions to allowance for credit losses not previously recorded 0 0
Reductions for securities sold during the period 0  
Additions (reductions) on securities with previous allowance 0  
Balance, ending of period 0 0
Held-to-maturity    
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Line Items]    
Balance, beginning of period 9 0
Cumulative effect of adoption of ASU 2016-13   9
Additions (reductions) on securities with previous allowance (2)  
Balance, ending of period 7 9
Held-to-maturity | U.S. Treasury securities and obligations of U.S. government authorities and agencies    
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Line Items]    
Balance, beginning of period 0 0
Cumulative effect of adoption of ASU 2016-13   0
Additions (reductions) on securities with previous allowance 0  
Balance, ending of period 0 0
Held-to-maturity | Foreign government bonds    
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Line Items]    
Balance, beginning of period 0 0
Cumulative effect of adoption of ASU 2016-13   0
Additions (reductions) on securities with previous allowance 0  
Balance, ending of period 0 0
Held-to-maturity | U.S. and Foreign Corporate Securities    
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Line Items]    
Balance, beginning of period 9 0
Cumulative effect of adoption of ASU 2016-13   9
Additions (reductions) on securities with previous allowance (2)  
Balance, ending of period 7 9
Held-to-maturity | Asset-backed securities    
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Line Items]    
Balance, beginning of period 0 0
Cumulative effect of adoption of ASU 2016-13   0
Additions (reductions) on securities with previous allowance 0  
Balance, ending of period 0 0
Held-to-maturity | Commercial mortgage-backed securities    
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Line Items]    
Balance, beginning of period 0 0
Cumulative effect of adoption of ASU 2016-13   0
Additions (reductions) on securities with previous allowance 0  
Balance, ending of period 0 0
Held-to-maturity | Residential mortgage-backed securities    
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Line Items]    
Balance, beginning of period 0 0
Cumulative effect of adoption of ASU 2016-13   0
Additions (reductions) on securities with previous allowance 0  
Balance, ending of period $ 0 $ 0