v3.26.1
Investments (Narrative) (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Dec. 31, 2025
Schedule of Investments [Line Items]          
Total Unrealized Losses $ 35,937   $ 35,937   $ 33,201
Twelve Months or More, Unrealized Losses 34,334   34,334   32,225
Fixed maturity securities purchased with credit deterioration     0   0
Write-down on accrued investment income receivable 1 $ 1 1 $ 1  
Loans on non-accrual status, do not have allowance for credit losses 757   757   442
Commercial mortgage and other loans purchased with credit deterioration     0   0
Loans on non-accrual status recognized in interest income 0 1 0 6  
Commercial Mortgage Loans          
Schedule of Investments [Line Items]          
Loans acquired 1 0 31 0  
Loans sold 0 0 0 0  
Financing Receivable, Modified, Commitment to Lend 0   $ 0   0
Commercial Mortgage Loans | Extended Maturity          
Schedule of Investments [Line Items]          
Financing Receivable, Modified, Weighted-Average Term Increase from Modification     1 year    
Residential Mortgage Loans          
Schedule of Investments [Line Items]          
Loans acquired 713 0 $ 1,557 0  
Loans sold 7 0 11 0  
Agricultural property loans          
Schedule of Investments [Line Items]          
Financing Receivable, Modified, Commitment to Lend 0   0   0
Corporate securities          
Schedule of Investments [Line Items]          
Twelve Months or More, Unrealized Losses 34,334   34,334   32,225
Income Statement Location [Axis]: us-gaap:UnrealizedGainLossOnInvestments | Fixed maturities | Trading          
Schedule of Investments [Line Items]          
Unrealized gains (losses) on investments 92 229 (216) 416  
Income Statement Location [Axis]: us-gaap:UnrealizedGainLossOnInvestments | Equity securities          
Schedule of Investments [Line Items]          
Unrealized gains (losses) on investments 883 374 555 145  
Income Statement Location [Axis]: us-gaap:UnrealizedGainLossOnInvestments | Assets supporting experience-rated contractholder liabilities          
Schedule of Investments [Line Items]          
Unrealized gains (losses) on investments $ 602 $ 253 $ 452 $ 54  
California          
Schedule of Investments [Line Items]          
Commercial mortgage loan, concentration percentage 27.00%   27.00%    
Residential mortgage loan, Concentration Percentage 12.00%   12.00%    
Florida          
Schedule of Investments [Line Items]          
Commercial mortgage loan, concentration percentage 7.00%   7.00%    
Residential mortgage loan, Concentration Percentage 13.00%   13.00%    
Texas          
Schedule of Investments [Line Items]          
Commercial mortgage loan, concentration percentage 6.00%   6.00%    
Europe          
Schedule of Investments [Line Items]          
Commercial mortgage loan, concentration percentage 6.00%   6.00%    
New York          
Schedule of Investments [Line Items]          
Residential mortgage loan, Concentration Percentage 9.00%   9.00%    
Mexico          
Schedule of Investments [Line Items]          
Commercial mortgage loan, concentration percentage 2.00%   2.00%    
Australia          
Schedule of Investments [Line Items]          
Commercial mortgage loan, concentration percentage 1.00%   1.00%    
Japan          
Schedule of Investments [Line Items]          
Commercial mortgage loan, concentration percentage 1.00%   1.00%    
NAIC High or Highest Quality Rating | Fixed maturities          
Schedule of Investments [Line Items]          
Total Unrealized Losses $ 34,854   $ 34,854   32,392
NAIC Other Than High or Highest Quality Rating | Fixed maturities          
Schedule of Investments [Line Items]          
Total Unrealized Losses $ 1,083   $ 1,083   $ 809