Restructuring Costs - Schedule of Changes in Restructuring Reserve (Details) $ in Millions	6 Months Ended
	Jun. 30, 2021 USD ($)
Restructuring Cost and Reserve [Line Items]
Balance, beginning of period	$ 46.1
Costs paid or utilized	(22.4)
Balance, end of period	23.7
Reportable segments | Americas
Restructuring Cost and Reserve [Line Items]
Balance, beginning of period	1.9
Costs paid or utilized	(0.7)
Balance, end of period	1.2
Reportable segments | Southern Europe
Restructuring Cost and Reserve [Line Items]
Balance, beginning of period	3.5
Costs paid or utilized	(1.9)
Balance, end of period	1.6
Reportable segments | Northern Europe
Restructuring Cost and Reserve [Line Items]
Balance, beginning of period	40.7
Costs paid or utilized	(19.8)
Balance, end of period	20.9
Reportable segments | APME
Restructuring Cost and Reserve [Line Items]
Balance, beginning of period	0.0
Costs paid or utilized	0.0
Balance, end of period	0.0
Corporate
Restructuring Cost and Reserve [Line Items]
Balance, beginning of period	0.0
Costs paid or utilized	0.0
Balance, end of period	$ 0.0