Financial Instruments and Derivative Financial Instruments (Balance Sheet) (Details) - USD ($) $ in Millions	Sep. 30, 2020	Dec. 31, 2019
Derivatives, Fair Value [Line Items]
Derivative Instruments in Hedges, Assets, at Fair Value	$ 11.8	$ 8.3
Derivative Instruments Not Designated as Hedging Instruments, Asset, at Fair Value	1.9	2.7
Derivative Asset, Fair Value, Gross Asset	13.7	11.0
Derivative Instruments in Hedges, Liabilities, at Fair Value	19.2	30.3
Derivative Instruments Not Designated as Hedging Instruments, Liability, at Fair Value	3.3	2.6
Derivative Liability, Fair Value, Gross Liability	22.5	32.9
Designated as Hedging Instrument [Member] \| Prepaid expenses and other [Member]
Derivatives, Fair Value [Line Items]
Foreign Currency Cash Flow Hedge Asset at Fair Value	3.7	3.1
Foreign Currency Cash Flow Hedge Liability at Fair Value	1.5	1.5
Designated as Hedging Instrument [Member] \| Other Current Liabilities [Member]
Derivatives, Fair Value [Line Items]
Interest Rate Cash Flow Hedge Asset at Fair Value	0.0	0.0
Foreign Currency Cash Flow Hedge Asset at Fair Value	3.4	1.7
Interest Rate Cash Flow Hedge Liability at Fair Value	2.5	0.7
Foreign Currency Cash Flow Hedge Liability at Fair Value	8.7	17.1
Designated as Hedging Instrument [Member] \| Other Noncurrent Assets [Member]
Derivatives, Fair Value [Line Items]
Foreign Currency Cash Flow Hedge Asset at Fair Value	4.7	0.0
Foreign Currency Cash Flow Hedge Liability at Fair Value	1.7	0.0
Designated as Hedging Instrument [Member] \| Other Noncurrent Liabilities [Member]
Derivatives, Fair Value [Line Items]
Interest Rate Cash Flow Hedge Asset at Fair Value	0.0	0.0
Foreign Currency Cash Flow Hedge Asset at Fair Value	0.0	3.5
Interest Rate Cash Flow Hedge Liability at Fair Value	3.0	1.4
Foreign Currency Cash Flow Hedge Liability at Fair Value	1.8	9.6
Not Designated as Hedging Instrument [Member] \| Prepaid expenses and other [Member]
Derivatives, Fair Value [Line Items]
Foreign Currency Cash Flow Hedge Asset at Fair Value	1.5	0.4
Foreign Currency Cash Flow Hedge Liability at Fair Value	1.9	0.2
Not Designated as Hedging Instrument [Member] \| Other Current Liabilities [Member]
Derivatives, Fair Value [Line Items]
Foreign Currency Cash Flow Hedge Asset at Fair Value	0.4	2.3
Foreign Currency Cash Flow Hedge Liability at Fair Value	$ 1.4	$ 2.4

Fair value, before effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets elected not to be offset. Excludes assets not subject to a master netting arrangement.

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