v3.26.1
Investments (Credit Quality of Commercial Mortgage Loans) (Details) - USD ($)
$ in Millions
Mar. 31, 2026
Dec. 31, 2025
Financing Receivable, Credit Quality Indicator [Line Items]    
Mortgage Loans, Gross $ 84,904 $ 85,751
Commercial Mortgage Loans    
Financing Receivable, Credit Quality Indicator [Line Items]    
Financing Receivable, Year One, Originated, Current Fiscal Year 904  
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year 3,279  
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year 3,995  
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year 2,717  
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year 5,591  
Financing Receivable, Originated, More than Five Years before Current Fiscal Year 29,831  
Financing Receivable, Revolving 1,712  
Mortgage Loans, Gross $ 48,029 $ 49,400
Loans Receivable Commercial Mortgage Percentage 100.00%  
Commercial Mortgage Loans | Greater than 1.20x    
Financing Receivable, Credit Quality Indicator [Line Items]    
Financing Receivable, Year One, Originated, Current Fiscal Year $ 755  
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year 2,673  
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year 3,665  
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year 1,973  
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year 4,555  
Financing Receivable, Originated, More than Five Years before Current Fiscal Year 24,243  
Financing Receivable, Revolving 1,712  
Mortgage Loans, Gross $ 39,576  
Loans Receivable Commercial Mortgage Percentage 82.40%  
Commercial Mortgage Loans | 1.00x - 1.20x    
Financing Receivable, Credit Quality Indicator [Line Items]    
Financing Receivable, Year One, Originated, Current Fiscal Year $ 0  
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year 318  
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year 6  
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year 384  
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year 459  
Financing Receivable, Originated, More than Five Years before Current Fiscal Year 3,443  
Financing Receivable, Revolving 0  
Mortgage Loans, Gross $ 4,610  
Loans Receivable Commercial Mortgage Percentage 9.60%  
Commercial Mortgage Loans | Less than 1.00x    
Financing Receivable, Credit Quality Indicator [Line Items]    
Financing Receivable, Year One, Originated, Current Fiscal Year $ 149  
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year 288  
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year 324  
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year 360  
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year 577  
Financing Receivable, Originated, More than Five Years before Current Fiscal Year 2,145  
Financing Receivable, Revolving 0  
Mortgage Loans, Gross $ 3,843  
Loans Receivable Commercial Mortgage Percentage 8.00%  
Commercial Mortgage Loans | Less than 65%    
Financing Receivable, Credit Quality Indicator [Line Items]    
Financing Receivable, Year One, Originated, Current Fiscal Year $ 779  
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year 2,595  
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year 3,258  
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year 1,957  
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year 2,253  
Financing Receivable, Originated, More than Five Years before Current Fiscal Year 13,786  
Financing Receivable, Revolving 1,712  
Mortgage Loans, Gross $ 26,340  
Loans Receivable Commercial Mortgage Percentage 54.80%  
Commercial Mortgage Loans | 65% to 75%    
Financing Receivable, Credit Quality Indicator [Line Items]    
Financing Receivable, Year One, Originated, Current Fiscal Year $ 125  
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year 399  
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year 550  
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year 632  
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year 2,145  
Financing Receivable, Originated, More than Five Years before Current Fiscal Year 3,731  
Financing Receivable, Revolving 0  
Mortgage Loans, Gross $ 7,582  
Loans Receivable Commercial Mortgage Percentage 15.80%  
Commercial Mortgage Loans | 76% to 80%    
Financing Receivable, Credit Quality Indicator [Line Items]    
Financing Receivable, Year One, Originated, Current Fiscal Year $ 0  
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year 98  
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year 0  
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year 63  
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year 410  
Financing Receivable, Originated, More than Five Years before Current Fiscal Year 2,304  
Financing Receivable, Revolving 0  
Mortgage Loans, Gross $ 2,875  
Loans Receivable Commercial Mortgage Percentage 6.00%  
Commercial Mortgage Loans | Greater than 80%    
Financing Receivable, Credit Quality Indicator [Line Items]    
Financing Receivable, Year One, Originated, Current Fiscal Year $ 0  
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year 187  
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year 187  
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year 65  
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year 783  
Financing Receivable, Originated, More than Five Years before Current Fiscal Year 10,010  
Financing Receivable, Revolving 0  
Mortgage Loans, Gross $ 11,232  
Loans Receivable Commercial Mortgage Percentage 23.40%