Restructuring - Narrative (Details) - USD ($)	3 Months Ended		12 Months Ended
	Dec. 31, 2020	Oct. 03, 2020	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Restructuring Cost and Reserve [Line Items]
Restructuring and settlement loss			$ 144,900,000	$ 183,600,000	$ 88,000,000.0
Restructuring charges	$ 8,100,000		132,000,000.0	194,200,000	88,000,000.0
Defined benefit plan, loss due to settlement	2,700,000	$ 10,200,000	12,900,000
Impairment of long-lived assets to be disposed of			21,300,000	8,700,000	4,700,000
Impairment of right of use assets			2,000,000.0	800,000
Expected restructuring costs	$ 18,000,000		18,000,000
Cost of sales
Restructuring Cost and Reserve [Line Items]
Restructuring charges			122,300,000	173,800,000	63,700,000
Selling, General and Administrative Expenses
Restructuring Cost and Reserve [Line Items]
Restructuring charges			16,400,000	16,400,000	24,000,000.0
Other Income and Expense, Net
Restructuring Cost and Reserve [Line Items]
Restructuring charges			6,200,000	6,600,000	300,000
Employee termination benefits
Restructuring Cost and Reserve [Line Items]
Restructuring charges			104,200,000	167,800,000	74,500,000
Asset impairments
Restructuring Cost and Reserve [Line Items]
Restructuring charges			23,300,000	9,500,000	4,700,000
Contract termination costs
Restructuring Cost and Reserve [Line Items]
Restructuring charges			2,000,000.0	3,000,000.0	1,500,000
Other related costs
Restructuring Cost and Reserve [Line Items]
Restructuring charges			$ 2,500,000	13,900,000	$ 7,300,000
Pension Benefit Plan Curtailment Gain
Restructuring Cost and Reserve [Line Items]
Restructuring charges				$ 10,600,000