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Employee Benefit Plans (Net Funded Status) (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Amounts recognized in Consolidated Balance Sheets:      
Pensions and postretirement health care benefits (noncurrent) $ (158.0) $ (209.0)  
Pension and ENPP Benefits      
Change in benefit obligation      
Benefit obligation at beginning of year 904.8 1,033.7  
Service cost 12.8 15.0 $ 16.2
Interest cost 14.8 12.6 16.5
Plan participants’ contributions 1.2 1.4  
Actuarial losses (gains) (227.2) (70.7)  
Amendments 25.5 (13.6)  
Curtailment 0.0 (9.7)  
Settlements (5.0) (0.2)  
Benefits paid (44.0) (47.2)  
Foreign currency exchange rate changes (71.3) (16.5)  
Benefit obligation at end of year 611.6 904.8 1,033.7
Change in plan assets      
Fair value of plan assets at beginning of year 815.6 808.6  
Actual return on plan assets (197.1) 27.7  
Employer contributions 34.1 36.0  
Plan participants’ contributions 1.2 1.4  
Benefits paid (44.0) (47.2)  
Settlements (5.0) (0.2)  
Foreign currency exchange rate changes (76.1) (10.7)  
Fair value of plan assets at end of year 528.7 815.6 808.6
Funded status (82.9) (89.2)  
Unrecognized net actuarial losses (gains) 270.0 291.7  
Unrecognized prior service cost 32.5 7.1  
Accumulated other comprehensive loss (302.5) (298.8)  
Net amount recognized (82.9) (89.2)  
Amounts recognized in Consolidated Balance Sheets:      
Other long-term asset 66.3 109.4  
Other current liabilities (7.0) (7.1)  
Accrued expenses (3.8) (3.6)  
Pensions and postretirement health care benefits (noncurrent) (138.4) (187.9)  
Postretirement Benefits      
Change in benefit obligation      
Benefit obligation at beginning of year 22.6 26.4  
Service cost 0.1 0.1 0.1
Interest cost 0.9 0.9 1.2
Plan participants’ contributions 0.0 0.0  
Actuarial losses (gains) (0.9) (3.7)  
Amendments 0.0 0.4  
Curtailment 0.0 0.0  
Settlements 0.0 0.0  
Benefits paid (1.7) (1.3)  
Foreign currency exchange rate changes 0.2 (0.2)  
Benefit obligation at end of year 21.2 22.6 26.4
Change in plan assets      
Fair value of plan assets at beginning of year 0.0 0.0  
Actual return on plan assets 0.0 0.0  
Employer contributions 1.7 1.3  
Plan participants’ contributions 0.0 0.0  
Benefits paid (1.7) (1.3)  
Settlements 0.0 0.0  
Foreign currency exchange rate changes 0.0 0.0  
Fair value of plan assets at end of year 0.0 0.0 $ 0.0
Funded status (21.2) (22.6)  
Unrecognized net actuarial losses (gains) (2.0) (1.1)  
Unrecognized prior service cost 3.1 3.2  
Accumulated other comprehensive loss (1.1) (2.1)  
Net amount recognized (21.2) (22.6)  
Amounts recognized in Consolidated Balance Sheets:      
Other long-term asset 0.0 0.0  
Other current liabilities (1.6) (1.5)  
Accrued expenses 0.0 0.0  
Pensions and postretirement health care benefits (noncurrent) $ (19.6) $ (21.1)