Supplemental Balance Sheet Data - Property, Plant and Equipment, Net (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2019	Dec. 31, 2018
Property, Plant and Equipment [Abstract]
Property, Plant, and Equipment at Cost		$ 6,660.0
Property, Plant, and Equipment at Cost	$ 6,821.1
Less: Accumulated Depreciation		(3,420.3)
Less: Accumulated Depreciation	(3,567.3)
Total	3,253.8
Total		3,239.7
Gross assets under capital lease	129.9
Amortization of right-of-use asset	7.6
Land and Improvements
Property, Plant and Equipment [Abstract]
Property, Plant, and Equipment at Cost	130.4	134.1
Buildings
Property, Plant and Equipment [Abstract]
Property, Plant, and Equipment at Cost		608.5
Gross assets under capital lease	105.5
Amortization of right-of-use asset	5.4
Gross assets under capital lease		95.5
Accumulated depreciation related to assets under capital lease		0.4
Machinery and equipment
Property, Plant and Equipment [Abstract]
Property, Plant, and Equipment at Cost		5,716.2
Gross assets under capital lease	36.6
Amortization of right-of-use asset	6.8
Gross assets under capital lease		39.6
Accumulated depreciation related to assets under capital lease		10.0
Construction-in-Progress
Property, Plant and Equipment [Abstract]
Property, Plant, and Equipment at Cost	202.6	$ 201.2
Buildings
Property, Plant and Equipment [Abstract]
Property, Plant, and Equipment at Cost	655.5
Machinery and equipment
Property, Plant and Equipment [Abstract]
Property, Plant, and Equipment at Cost	$ 5,832.6

Property, Plant, And Equipment And Finance Lease Right-Of-Use Asset, Accumulated Depreciation And Amortization

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Property, Plant, and Equipment and Finance Lease Right-Of-Use Asset, After Accumulated Depreciation and Amortization

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Property, Plant, And Equipment And Finance Lease Right-Of-Use Asset, Before Accumulated Depreciation And Amortization

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Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

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Amount before accumulated depreciation of leased physical assets used in the normal conduct of business to produce goods and services.

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The total charge for the use of long-lived depreciable assets subject to a lease meeting the criteria for capitalization.

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Amount of lessee's right to use underlying asset under finance lease.

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Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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