v3.26.3
Discontinued Operations and Disposal Groups - Additional Information (Details) - USD ($)
$ in Millions
 9 Months Ended
Sep. 30, 2026
Jun. 03, 2026
Dec. 31, 2025
Disposal Group, Including Discontinued Operations [Line Items]      
Deferred Tax Assets, Net of Valuation Allowance   $ 251  
Discontinued Operations, Disposed of by Sale | Hartford Funds Management Group, Inc      
Disposal Group, Including Discontinued Operations [Line Items]      
Cash Consideration Receivable Upon Sale of Business   $ 300  
Percentage of After-Tax Available Cash Used to Determine Contingent Consideration   95.00%  
Discount Rate Used to Determine Contingent Consideration Payment Termination Threshold   11.00%  
Contingent Consideration Payment Termination Threshold Amount   $ 2,100  
Contingent Consideration Payment Termination Threshold Amount - 7 Years After Closing   1,500  
Disposal Group, Including Discontinued Operation, Goodwill $ 272 $ 272 $ 272
Goodwill, Impairment Loss 0    
Expected Pre-Closing Dividend from Discontinued Operation 170    
Discontinued Operation, Gain (Loss) on Disposal of Discontinued Operation, Net of Tax $ 150