v3.26.1
Borrowings and Federal Home Loan Bank Advances (Narrative) (Details)
3 Months Ended
Feb. 04, 2026
USD ($)
Mar. 31, 2026
USD ($)
Item
Short-term Debt [Line Items]    
Uncommitted secured lines of credit   $ 780,000,000
Uncommitted unsecured lines of credit   $ 100,000,000
Number of banks | Item   3
Daily borrowings under our uncommitted unsecured lines   $ 35,000,000
Compensating balances   0
Federal Home Loan Bank advances   0
Outstanding credit facility   0
Unsecured Debt [Member]    
Short-term Debt [Line Items]    
Credit agreement maturity date Feb. 04, 2031  
Aggregate borrowings $ 1,000,000,000  
Credit Agreement [Member]    
Short-term Debt [Line Items]    
Outstanding credit facility   0
Company Owned Securities [Member]    
Short-term Debt [Line Items]    
Uncommitted secured lines of credit   0
Uncommitted unsecured lines of credit   $ 35,000,000