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Pension and Other Postretirement Benefit Plans - Information for Pension Plans with an Accumulated Benefit Obligation in Excess of Plan Assets (Details) - Pension [Member] - USD ($)
$ in Millions
Dec. 31, 2022
Dec. 31, 2021
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]    
Projected Benefit Obligation $ 739.7 $ 911.7
Accumulated Benefit Obligation 724.5 875.5
Fair Value of Plan Assets $ 568.6 $ 745.7