Special Items - Severance and Other Employee Related (Details) - USD ($) $ in Millions	9 Months Ended
Sep. 30, 2020	Sep. 30, 2019
Restructuring Cost and Reserve [Line Items]
Payment of severance obligations, term	12 months
Severance and other employee-related costs
Changes in restructuring accruals [Roll Forward]
Beginning balance of restructuring accruals	$ 47.1	$ 25.6
Charges incurred and changes in estimates	66.6	10.7
Payments made	(70.8)	(26.3)
Changes in estimates	(4.8)
Foreign currency and other adjustments	(0.3)	0.0
Ending balance of restructuring accruals	37.8	10.0
Severance and other employee-related costs \| North America
Changes in restructuring accruals [Roll Forward]
Beginning balance of restructuring accruals	42.6	24.5
Charges incurred and changes in estimates	58.3	5.8
Payments made	(60.6)	(22.9)
Changes in estimates	(4.0)
Foreign currency and other adjustments	(0.3)	0.1
Ending balance of restructuring accruals	36.0	7.5
Severance and other employee-related costs \| Europe
Changes in restructuring accruals [Roll Forward]
Beginning balance of restructuring accruals	4.5	1.1
Charges incurred and changes in estimates	8.3	4.9
Payments made	(10.2)	(3.4)
Changes in estimates	(0.8)
Foreign currency and other adjustments	0.0	(0.1)
Ending balance of restructuring accruals	$ 1.8	$ 2.5

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Amount of cash payments made as the result of exit or disposal activities. Excludes payments associated with a discontinued operation or an asset retirement obligation.

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Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

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Carrying amount (including both current and noncurrent portions of the accrual) as of the balance sheet date pertaining to a specified type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan.

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