v3.25.2
Investments (Narrative) (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Dec. 31, 2024
Schedule of Investments [Line Items]          
Total Unrealized Losses $ 34,130   $ 34,130   $ 34,588
Twelve Months or More, Unrealized Losses 32,180   32,180   32,158
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 423   423   207
Commercial mortgage and other loans purchased with credit deterioration     0   0
Loans on non-accrual status recognized in interest income 1 $ 1 6 $ 1  
Commercial Mortgage Loans | Extended Maturity [Member]          
Schedule of Investments [Line Items]          
Financing Receivable, Modified, Weighted Average Term Increase from Modification   1 year   1 year  
Corporate securities          
Schedule of Investments [Line Items]          
Twelve Months or More, Unrealized Losses 32,180   32,180   32,158
Other income (loss) | Fixed maturities | Trading          
Schedule of Investments [Line Items]          
Unrealized gains (losses) on investments 229 $ (146) 416 $ (327)  
Other income (loss) | Equity securities          
Schedule of Investments [Line Items]          
Unrealized gains (losses) on investments 374 212 145 643  
Other income (loss) | Assets supporting experience-rated contractholder liabilities          
Schedule of Investments [Line Items]          
Unrealized gains (losses) on investments $ 253 $ 74 $ 54 $ 373  
California          
Schedule of Investments [Line Items]          
Commercial mortgage loan, concentration percentage 28.00%   28.00%    
Texas          
Schedule of Investments [Line Items]          
Commercial mortgage loan, concentration percentage 6.00%   6.00%    
Florida          
Schedule of Investments [Line Items]          
Commercial mortgage loan, concentration percentage 5.00%   5.00%    
Europe          
Schedule of Investments [Line Items]          
Commercial mortgage loan, concentration percentage 6.00%   6.00%    
Mexico          
Schedule of Investments [Line Items]          
Commercial mortgage loan, concentration percentage 2.00%   2.00%    
Japan          
Schedule of Investments [Line Items]          
Commercial mortgage loan, concentration percentage 1.00%   1.00%    
Australia          
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 $ 33,123   $ 33,123   33,437
NAIC Other Than High or Highest Quality Rating | Fixed maturities          
Schedule of Investments [Line Items]          
Total Unrealized Losses $ 1,007   $ 1,007   $ 1,151