v3.26.1
Qualifying Debt (Details)
$ in Millions
3 Months Ended
Mar. 31, 2026
USD ($)
Trust
Dec. 31, 2025
USD ($)
Debt Instrument [Line Items]    
Subordinated debt issuances $ 988 $ 990
Number of statutory business trusts | Trust 8  
Junior subordinated debt $ 84 $ 86
Junior Subordinated Debt    
Debt Instrument [Line Items]    
Weighted average interest rate 6.28% 6.25%