v3.26.1
Investments (Credit Quality of Commercial Mortgage Loans) (Details) - USD ($)
$ in Millions
Jun. 30, 2026
Dec. 31, 2025
Financing Receivable, Credit Quality Indicator [Line Items]    
Mortgage Loans, Gross $ 55,655 $ 56,564
Commercial Mortgage Loans    
Financing Receivable, Credit Quality Indicator [Line Items]    
Financing Receivable, Year One, Originated, Current Fiscal Year 1,176  
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year 1,923  
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year 2,345  
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year 1,671  
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year 2,939  
Financing Receivable, Originated, More than Five Years before Current Fiscal Year 15,921  
Financing Receivable, Revolving 1,577  
Mortgage Loans, Gross $ 27,552 $ 29,546
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 $ 1,030  
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year 1,660  
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year 1,934  
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year 1,220  
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year 2,317  
Financing Receivable, Originated, More than Five Years before Current Fiscal Year 13,369  
Financing Receivable, Revolving 1,577  
Mortgage Loans, Gross $ 23,107  
Loans Receivable Commercial Mortgage Percentage 83.90%  
Commercial Mortgage Loans | 1.00x - 1.20x    
Financing Receivable, Credit Quality Indicator [Line Items]    
Financing Receivable, Year One, Originated, Current Fiscal Year $ 42  
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year 244  
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year 0  
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year 337  
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year 163  
Financing Receivable, Originated, More than Five Years before Current Fiscal Year 1,374  
Financing Receivable, Revolving 0  
Mortgage Loans, Gross $ 2,160  
Loans Receivable Commercial Mortgage Percentage 7.80%  
Commercial Mortgage Loans | Less than 1.00x    
Financing Receivable, Credit Quality Indicator [Line Items]    
Financing Receivable, Year One, Originated, Current Fiscal Year $ 104  
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year 19  
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year 411  
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year 114  
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year 459  
Financing Receivable, Originated, More than Five Years before Current Fiscal Year 1,178  
Financing Receivable, Revolving 0  
Mortgage Loans, Gross $ 2,285  
Loans Receivable Commercial Mortgage Percentage 8.30%  
Commercial Mortgage Loans | Less than 65%    
Financing Receivable, Credit Quality Indicator [Line Items]    
Financing Receivable, Year One, Originated, Current Fiscal Year $ 966  
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year 1,495  
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year 1,859  
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year 1,189  
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year 883  
Financing Receivable, Originated, More than Five Years before Current Fiscal Year 7,291  
Financing Receivable, Revolving 1,577  
Mortgage Loans, Gross $ 15,260  
Loans Receivable Commercial Mortgage Percentage 55.40%  
Commercial Mortgage Loans | 65% to 75%    
Financing Receivable, Credit Quality Indicator [Line Items]    
Financing Receivable, Year One, Originated, Current Fiscal Year $ 209  
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year 243  
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year 306  
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year 430  
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year 1,393  
Financing Receivable, Originated, More than Five Years before Current Fiscal Year 1,924  
Financing Receivable, Revolving 0  
Mortgage Loans, Gross $ 4,505  
Loans Receivable Commercial Mortgage Percentage 16.40%  
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 52  
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year 0  
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year 52  
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year 202  
Financing Receivable, Originated, More than Five Years before Current Fiscal Year 968  
Financing Receivable, Revolving 0  
Mortgage Loans, Gross $ 1,274  
Loans Receivable Commercial Mortgage Percentage 4.60%  
Commercial Mortgage Loans | Greater than 80%    
Financing Receivable, Credit Quality Indicator [Line Items]    
Financing Receivable, Year One, Originated, Current Fiscal Year $ 1  
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year 133  
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year 180  
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year 0  
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year 461  
Financing Receivable, Originated, More than Five Years before Current Fiscal Year 5,738  
Financing Receivable, Revolving 0  
Mortgage Loans, Gross $ 6,513  
Loans Receivable Commercial Mortgage Percentage 23.60%