v3.26.1
Overview and Basis of Presentation (Details) - $ / shares
5 Months Ended
Jun. 25, 2025
Jan. 02, 2026
Mar. 31, 2026
Mar. 26, 2026
Dec. 31, 2025
Other Ownership Interests [Line Items]          
Common stock, par value (in dollars per share)     $ 0.01   $ 0.01
CSLR Modco Agreement          
Other Ownership Interests [Line Items]          
Reinsurance, reinsured risk (as a percent) 100.00% 100.00%      
Corebridge Financial and Equitable Holdings Merger | Corebridge Financial          
Other Ownership Interests [Line Items]          
Acquisitions, merger agreement, number of shares acquired (in shares)       1  
Corebridge Financial and Equitable Holdings Merger | Equitable Holdings, Inc.          
Other Ownership Interests [Line Items]          
Acquisitions, merger agreement, number of shares acquired (in shares)       1.55516  
Corebridge Financial          
Other Ownership Interests [Line Items]          
Acquisitions ownership (as a percent)       51.00%  
Equitable Holdings, Inc.          
Other Ownership Interests [Line Items]          
Acquisitions ownership (as a percent)       49.00%  
Corebridge Financial | Nippon Life Insurance Company          
Other Ownership Interests [Line Items]          
Ownership percentage (as a percent)     26.70%    
Corebridge Financial | Argon Holdco LLC          
Other Ownership Interests [Line Items]          
Ownership percentage (as a percent)     13.60%