v3.26.1
Debt (Narrative) (Details)
$ in Millions
 3 Months Ended
Mar. 31, 2026
USD ($)
Debt Instrument [Line Items]  
Debt Instrument, Interest Rate, Stated Percentage 5.75%
Debt Instrument, Face Amount $ 400
Debt Instrument, Redemption, Description 2056 Subordinated Debt RedemptionOn May 1, 2026, a notice of redemption was issued to the holders of all of the Company’s outstanding $400 million aggregate principal amount 5.75% Fixed-to-Floating Rate Subordinated Debentures due 2056 (the “2056 Debentures”) in accordance with the terms of the indenture governing the 2056 Debentures. The 2056 Debentures will be redeemed in full on June 15, 2026, at a redemption price equal to 100% of the outstanding principal amount thereof, plus accrued and unpaid interest thereon.
Subordinated Debentures due 2056 - 26 issuance  
Debt Instrument [Line Items]  
Debt Instrument, Interest Rate, Stated Percentage 6.375%
Debt Instrument, Face Amount $ 400
Debt Related Commitment Fees and Debt Issuance Costs $ 5