XML 74 R63.htm IDEA: XBRL DOCUMENT v3.20.2
Investments (Mortgage Loans by Method of Evaluation and Related Valuation Allowances) (Details) - USD ($)
$ in Millions
9 Months Ended
Sep. 30, 2020
Jun. 30, 2020
Dec. 31, 2019
Financing Receivable, Allowance for Credit Loss [Line Items]      
Document Period End Date Sep. 30, 2020    
Mortgage Loans:      
Total mortgage loans $ 5,981   $ 5,727
Mortgage Loans on Real Estate, Commercial and Consumer, Net, (Investment Based Operations Presentation) [Abstract]      
Mortgage loans on real estate (net of valuation allowances) 5,907   5,706
Commercial Real Estate Portfolio Segment [Member]      
Mortgage Loans:      
Evaluated individually for credit losses 37   17
Evaluated collectively for credit losses 5,944   5,710
Total mortgage loans 5,981   5,727
Valuation Allowances:      
Specific for credit losses 0   0
Non-specifically identified credit losses 64 $ 5,961 12
Total valuation allowances $ 64   $ 12