XML 68 R58.htm IDEA: XBRL DOCUMENT v3.22.2.2
Pension and Other Postretirement Benefits - Narrative (Details)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2022
USD ($)
Sep. 30, 2022
USD ($)
Pension Plans, Defined Benefit [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Defined Benefit Plan, Contributions by Employer $ 5.5 $ 5.5
Defined Benefit Plan, Estimated Future Employer Contributions in Current Fiscal Year 6.6 6.6
Other Postretirement Benefit Plans Defined Benefit [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Defined Benefit Plan, Contributions by Employer 0.1 0.1
Defined Benefit Plan, Estimated Future Employer Contributions in Current Fiscal Year $ 0.2 $ 0.2