XML 86 R62.htm IDEA: XBRL DOCUMENT v3.20.4
Investments - Narrative (Details)
$ in Millions
3 Months Ended 12 Months Ended
Mar. 31, 2020
USD ($)
Dec. 31, 2020
USD ($)
security
Dec. 31, 2019
USD ($)
Dec. 31, 2018
USD ($)
Schedule of Investments [Line Items]        
Percentage (based on unrealized loss) of available for sale fixed maturities that are in unrealized loss position and rated investment grade   76.00%    
Percentage (based on fair value) of available for sale fixed maturities that are in unrealized loss position and rated investment grade   88.00%    
Net investment income   $ 2,132 $ 2,303 $ 2,094
Annuity        
Schedule of Investments [Line Items]        
Net investment income   1,699 1,792 1,638
Neon Capital Limited        
Schedule of Investments [Line Items]        
Net investment income   (5)    
Neon Capital Limited | Accounting Standards Update 2016-01 | Equity securities        
Schedule of Investments [Line Items]        
Net investment income $ (7)      
Residential MBS        
Schedule of Investments [Line Items]        
Fixed maturities, Available for sale, Gross Unrealized, Losses   $ (5) (5)  
Number of securities purchased with credit deterioration | security   2    
Aggregate par value of securities purchased with credit deterioration, at time of purchase   $ 8    
Aggregate purchase price of securities purchased with credit deterioration, at time of purchase   6    
Initial discount for purchased securities with credit deterioration   1    
Initial allowance for purchased securities with credit deterioration   1    
Fixed maturities        
Schedule of Investments [Line Items]        
Fixed maturities, Available for sale, Gross Unrealized, Losses   $ (118) (88)  
Number of fixed maturities in an unrealized loss position | security   620    
Realized before impairments   $ 468 26 6
Fixed maturities | Annuity        
Schedule of Investments [Line Items]        
Realized before impairments   415    
Equity securities        
Schedule of Investments [Line Items]        
Realized before impairments   $ (96) $ 277 $ (265)