v3.26.1
Debt and Credit Arrangements - (Schedule of Debt) (Parenthetical) (Details)
3 Months Ended 12 Months Ended
Mar. 31, 2026
Dec. 31, 2025
Senior debentures maturing April 15, 2026 [Member]    
Debt Instrument [Line Items]    
Maturity date Apr. 15, 2026 Apr. 15, 2026
Senior debentures maturing September 1, 2035 [Member]    
Debt Instrument [Line Items]    
Maturity date Sep. 01, 2035 Sep. 01, 2035
Senior debentures maturing September 1, 2030 [Member]    
Debt Instrument [Line Items]    
Maturity date Sep. 01, 2030 Sep. 01, 2030
Subordinated debentures maturing February 3, 2027 [Member]    
Debt Instrument [Line Items]    
Maturity date Feb. 03, 2027 Feb. 03, 2027