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 of structure or a modification to a structure under construction. Includes recently completed structures or modifications to structures that have not been placed into service.

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The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation.

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Amount classified as property, plant and equipment attributable to disposal group held for sale or disposed of.

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Minimum amount of other commitment not otherwise specified in the taxonomy. Excludes commitments explicitly modeled in the taxonomy, including but not limited to, long-term and short-term purchase commitments, recorded and unrecorded purchase obligations, supply commitments, registration payment arrangements, leases, debt, product warranties, guarantees, environmental remediation obligations, and pensions.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Property, Plant and Equipment (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018	Dec. 31, 2018
Property, Plant and Equipment [Line Items]
Accumulated depreciation	$ 1,886.2		$ 1,886.2		$ 1,797.4
Depreciation	47.0	$ 64.2	99.9	$ 129.2
Solothurn, Switzerland
Property, Plant and Equipment [Line Items]
Construction in progress	1,800.0		1,800.0		$ 1,600.0
Contractual commitments for the construction of the facility	57.0		57.0
Building
Property, Plant and Equipment [Line Items]
Property, plant and equipment held for sale	318.4		318.4
Machinery and Equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment held for sale	$ 290.8		$ 290.8