XML 110 R93.htm IDEA: XBRL DOCUMENT v3.25.0.1
Retirement Plans and Postretirement Benefit Plans - Schedule of Capitalized Pension and Postretirement Cost (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Pension Plan [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Capitalized Portion of Net Periodic Benefit Cost $ 2.2 $ 2.2 $ 3.0
Pension Plan [Member] | Og and E [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Capitalized Portion of Net Periodic Benefit Cost 2.2 1.9 2.5
Other Postretirement Benefits Plan [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Capitalized Portion of Net Periodic Benefit Cost 0.1 0.1 0.2
Other Postretirement Benefits Plan [Member] | Og and E [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Capitalized Portion of Net Periodic Benefit Cost $ 0.1 $ 0.1 $ 0.1