XML 50 R39.htm IDEA: XBRL DOCUMENT v3.23.2
Pension Plans and Postretirement Benefits - Additional Details (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2023
Jun. 30, 2022
Jun. 30, 2023
Jun. 30, 2022
Retirement Benefits [Abstract]        
Service cost $ 2.0 $ 3.2 $ 3.9 $ 6.2
Net periodic benefit (income) cost, excluding service costs $ (2.4) $ (12.6) $ (4.9) $ (25.2)