Retirement Benefits - Narrative (Details)	3 Months Ended			12 Months Ended					25 Months Ended
	Jun. 30, 2019 USD ($)	Sep. 30, 2018 USD ($) benefit_plan	Dec. 31, 2016 USD ($)	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($) benefit_plan	Dec. 31, 2019 USD ($) benefit_plan	Dec. 31, 2018 USD ($)	Dec. 31, 2016 USD ($)	Dec. 31, 2021 USD ($)
Defined Benefit Plan Disclosure [Line Items]
Number of defined contribution pension plans | benefit_plan					5
Defined contribution pension plans, total costs					$ 23,100,000	$ 23,400,000	$ 22,500,000
Number of multiemployer defined benefit pension plans | benefit_plan					1	1
Multiemployer plan total employer contributions					$ 200,000	$ 200,000	200,000
Restructuring charges					24,100,000	32,000,000.0	12,000,000.0
Settlement of multi-employer pension plan					$ 6,000,000.0	10,000,000.0
Futures contract supported by cash or cash equivalents					100.00%
Withdrawal from Multiemployer Defined Benefit Plan
Defined Benefit Plan Disclosure [Line Items]
Restructuring charges	$ 22,900,000		$ 12,500,000
Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Settlement gain (loss)					$ (7,600,000)
Number of foreign plans amended | benefit_plan		1
Benefit obligation					994,200,000	938,700,000	$ 844,300,000
Accumulated benefit obligation					993,900,000	933,500,000
Settlement of multi-employer pension plan					$ 6,000,000.0	$ 10,000,000.0
Discount rate					2.47%	3.17%	4.24%
Employer contributions					$ 29,500,000	$ 16,400,000
Pension Benefits | Qualified Plan
Defined Benefit Plan Disclosure [Line Items]
Employer contributions					$ 23,200,000
United States
Defined Benefit Plan Disclosure [Line Items]
Discount rate					2.60%	3.30%
United States | Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Curtailment gain (loss)						$ (300,000)
Projected benefit obligation settled							$ 28,000,000
Defined benefit obligation per plan, as a percent of total benefit obligation					87.00%
United States | Pension Benefits | Qualified Plan
Defined Benefit Plan Disclosure [Line Items]
Employer contributions					$ 15,000,000.0
Foreign Plan | Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Curtailment gain (loss)		$ 4,700,000
Canada
Defined Benefit Plan Disclosure [Line Items]
Discount rate					2.55%	3.00%
United Kingdom
Defined Benefit Plan Disclosure [Line Items]
Discount rate					1.40%	2.10%
United Kingdom | Pension Benefits | Qualified Plan
Defined Benefit Plan Disclosure [Line Items]
Employer contributions					$ 8,000,000.0
Company Stock
Defined Benefit Plan Disclosure [Line Items]
Employer stock included in plan assets					$ 0	$ 0
Forecast
Defined Benefit Plan Disclosure [Line Items]
Settlement of multi-employer pension plan				$ 5,000,000.0					$ 21,000,000.0
Forecast | Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Settlement of multi-employer pension plan				$ 5,000,000.0
Adjustment | Withdrawal from Multiemployer Defined Benefit Plan
Defined Benefit Plan Disclosure [Line Items]
Restructuring charges						$ 8,500,000		$ 12,500,000