v3.25.4
Pension and Other Postretirement Benefits (Schedule Of Changes In Plan Assets And Projected Benefit Obligations Recognized In Other Comprehensive Income) (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Total Recognized in Other Comprehensive Income or Regulatory Asset or Liability [1] $ 20.5 $ 0.3 $ (0.2)
Pension Plan      
Net prior service cost/(credit) 0.0 0.0  
Net actuarial (gain)/loss (5.6) (13.1)  
Settlements (6.5) (7.2)  
Defined Benefit Plan, Amortization of Prior Service Cost (Credit) (0.1) (0.1)  
Less: amortization of net actuarial (gain) loss (25.5) (28.6)  
Total Recognized in Other Comprehensive Income or Regulatory Asset or Liability (37.7) (49.0)  
Amount Recognized in Net Periodic Benefits Cost and Other Comprehensive Income or Regulatory Asset or Liability (14.2) (21.6)  
Other Postretirement Benefits      
Net prior service cost/(credit) (30.3) 0.0  
Net actuarial (gain)/loss (13.7) (26.4)  
Settlements (3.4) 0.0  
Defined Benefit Plan, Amortization of Prior Service Cost (Credit) 2.6 1.8  
Less: amortization of net actuarial (gain) loss (1.7) (3.2)  
Total Recognized in Other Comprehensive Income or Regulatory Asset or Liability (46.5) (27.8)  
Amount Recognized in Net Periodic Benefits Cost and Other Comprehensive Income or Regulatory Asset or Liability $ (35.1) $ (15.5)  
[1] Unrecognized pension and OPEB benefit (costs), net of $4.4 million tax expense, $0.3 million tax expense and $0.1 million tax benefit in 2025, 2024 and 2023, respectively.