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 $ 84,214 $ 85,751
Commercial Mortgage Loans    
Financing Receivable, Credit Quality Indicator [Line Items]    
Financing Receivable, Year One, Originated, Current Fiscal Year 1,713  
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year 3,282  
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year 3,857  
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year 2,583  
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year 5,422  
Financing Receivable, Originated, More than Five Years before Current Fiscal Year 27,514  
Financing Receivable, Revolving 1,577  
Mortgage Loans, Gross $ 45,948 $ 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 $ 1,394  
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year 2,856  
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year 3,352  
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year 2,030  
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year 4,488  
Financing Receivable, Originated, More than Five Years before Current Fiscal Year 22,793  
Financing Receivable, Revolving 1,577  
Mortgage Loans, Gross $ 38,490  
Loans Receivable Commercial Mortgage Percentage 83.80%  
Commercial Mortgage Loans | 1.00x - 1.20x    
Financing Receivable, Credit Quality Indicator [Line Items]    
Financing Receivable, Year One, Originated, Current Fiscal Year $ 45  
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year 374  
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year 6  
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year 428  
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year 392  
Financing Receivable, Originated, More than Five Years before Current Fiscal Year 2,502  
Financing Receivable, Revolving 0  
Mortgage Loans, Gross $ 3,747  
Loans Receivable Commercial Mortgage Percentage 8.10%  
Commercial Mortgage Loans | Less than 1.00x    
Financing Receivable, Credit Quality Indicator [Line Items]    
Financing Receivable, Year One, Originated, Current Fiscal Year $ 274  
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year 52  
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year 499  
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year 125  
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year 542  
Financing Receivable, Originated, More than Five Years before Current Fiscal Year 2,219  
Financing Receivable, Revolving 0  
Mortgage Loans, Gross $ 3,711  
Loans Receivable Commercial Mortgage Percentage 8.10%  
Commercial Mortgage Loans | Less than 65%    
Financing Receivable, Credit Quality Indicator [Line Items]    
Financing Receivable, Year One, Originated, Current Fiscal Year $ 1,445  
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year 2,596  
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year 3,125  
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year 1,890  
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year 2,152  
Financing Receivable, Originated, More than Five Years before Current Fiscal Year 12,180  
Financing Receivable, Revolving 1,577  
Mortgage Loans, Gross $ 24,965  
Loans Receivable Commercial Mortgage Percentage 54.30%  
Commercial Mortgage Loans | 65% to 75%    
Financing Receivable, Credit Quality Indicator [Line Items]    
Financing Receivable, Year One, Originated, Current Fiscal Year $ 264  
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year 401  
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year 542  
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year 630  
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year 2,231  
Financing Receivable, Originated, More than Five Years before Current Fiscal Year 3,378  
Financing Receivable, Revolving 0  
Mortgage Loans, Gross $ 7,446  
Loans Receivable Commercial Mortgage Percentage 16.20%  
Commercial Mortgage Loans | 76% to 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 150  
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 334  
Financing Receivable, Originated, More than Five Years before Current Fiscal Year 2,135  
Financing Receivable, Revolving 0  
Mortgage Loans, Gross $ 2,683  
Loans Receivable Commercial Mortgage Percentage 5.90%  
Commercial Mortgage Loans | Greater than 80%    
Financing Receivable, Credit Quality Indicator [Line Items]    
Financing Receivable, Year One, Originated, Current Fiscal Year $ 3  
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year 135  
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year 190  
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year 0  
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year 705  
Financing Receivable, Originated, More than Five Years before Current Fiscal Year 9,821  
Financing Receivable, Revolving 0  
Mortgage Loans, Gross $ 10,854  
Loans Receivable Commercial Mortgage Percentage 23.60%