Financial Instruments Schedule of Fair Values of Derivative Instruments (Details) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Derivative instruments, gross asset	$ 1.3	$ 2.2
Derivative instruments, gross liability	7.2	1.3
Cash Flow Hedging [Member] \| Fair Value, Inputs, Level 2 [Member]
Derivative instruments, gross asset	1.3	2.2
Derivative instruments, gross liability	7.2	1.3
Foreign Exchange Contract [Member] \| Designated as Hedging Instrument [Member]
Derivative instruments, gross asset	0.1	1.3
Derivative instruments, gross liability	3.9	0.7
Foreign Exchange Contract [Member] \| Undesignated Hedges [Member]
Derivative instruments, gross asset	1.2	0.9
Derivative instruments, gross liability	$ 3.3	$ 0.6

Fair value, before effects of master netting arrangements, of a financial liability or 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 liabilities elected not to be offset. Excludes liabilities not subject to a master netting arrangement.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 860
-SubTopic 20
-Section 50
-Paragraph 4D
-Subparagraph (c)(2)
-URI http://asc.fasb.org/extlink&oid=118948506&loc=SL51823488-111719

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4B
-Subparagraph (a),(c)
-URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5624163-113959

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 20
-Section 50
-Paragraph 3
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312

Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 20
-Section 55
-Paragraph 7
-URI http://asc.fasb.org/extlink&oid=99393222&loc=SL20226000-175313

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