v3.26.1
Debt and Credit Arrangements (Narrative) (Details) - 4.50% Unsecured Senior Debentures [Member]
$ in Millions
Jan. 15, 2026
USD ($)
Debt Instrument [Line Items]  
Aggregate principal amount $ 375.0
Debt instrument interest rate 4.50%
Debt issuance date Apr. 08, 2016