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 $ 56,176 $ 56,564
Commercial Mortgage Loans    
Financing Receivable, Credit Quality Indicator [Line Items]    
Financing Receivable, Year One, Originated, Current Fiscal Year 653  
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year 1,924  
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year 2,399  
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year 1,761  
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year 3,008  
Financing Receivable, Originated, More than Five Years before Current Fiscal Year 17,427  
Financing Receivable, Revolving 1,712  
Mortgage Loans, Gross $ 28,884 $ 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 $ 538  
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year 1,512  
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year 2,148  
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year 1,149  
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year 2,285  
Financing Receivable, Originated, More than Five Years before Current Fiscal Year 14,080  
Financing Receivable, Revolving 1,712  
Mortgage Loans, Gross $ 23,424  
Loans Receivable Commercial Mortgage Percentage 81.10%  
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 274  
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year 0  
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year 323  
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year 265  
Financing Receivable, Originated, More than Five Years before Current Fiscal Year 2,135  
Financing Receivable, Revolving 0  
Mortgage Loans, Gross $ 2,997  
Loans Receivable Commercial Mortgage Percentage 10.40%  
Commercial Mortgage Loans | Less than 1.00x    
Financing Receivable, Credit Quality Indicator [Line Items]    
Financing Receivable, Year One, Originated, Current Fiscal Year $ 115  
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year 138  
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year 251  
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year 289  
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year 458  
Financing Receivable, Originated, More than Five Years before Current Fiscal Year 1,212  
Financing Receivable, Revolving 0  
Mortgage Loans, Gross $ 2,463  
Loans Receivable Commercial Mortgage Percentage 8.50%  
Commercial Mortgage Loans | Less than 65%    
Financing Receivable, Credit Quality Indicator [Line Items]    
Financing Receivable, Year One, Originated, Current Fiscal Year $ 533  
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year 1,495  
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year 1,910  
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year 1,211  
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year 905  
Financing Receivable, Originated, More than Five Years before Current Fiscal Year 8,329  
Financing Receivable, Revolving 1,712  
Mortgage Loans, Gross $ 16,095  
Loans Receivable Commercial Mortgage Percentage 55.70%  
Commercial Mortgage Loans | 65% to 75%    
Financing Receivable, Credit Quality Indicator [Line Items]    
Financing Receivable, Year One, Originated, Current Fiscal Year $ 120  
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year 244  
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year 312  
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year 432  
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year 1,341  
Financing Receivable, Originated, More than Five Years before Current Fiscal Year 2,345  
Financing Receivable, Revolving 0  
Mortgage Loans, Gross $ 4,794  
Loans Receivable Commercial Mortgage Percentage 16.60%  
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 33  
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 278  
Financing Receivable, Originated, More than Five Years before Current Fiscal Year 1,044  
Financing Receivable, Revolving 0  
Mortgage Loans, Gross $ 1,407  
Loans Receivable Commercial Mortgage Percentage 4.90%  
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 152  
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year 177  
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year 66  
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year 484  
Financing Receivable, Originated, More than Five Years before Current Fiscal Year 5,709  
Financing Receivable, Revolving 0  
Mortgage Loans, Gross $ 6,588  
Loans Receivable Commercial Mortgage Percentage 22.80%