Financial Instruments - Income Statement (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2017	Dec. 31, 2016
Derivative Instruments, Gain (Loss) [Line Items]
Deferred gain (loss) in AOCI	$ (56.5)	$ 35.0
Cash Flow Hedge Gain (Loss) to be Reclassified within Twelve Months	(3.1)
Interest Rate Swap [Member] \| Interest expense [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) on Fair Value Hedges Recognized in Earnings	0.0	8.5
Foreign currency contracts [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Deferred gain (loss) in AOCI	(2.3)	5.6
Cash Flow Hedge Gain (Loss) to be Reclassified within Twelve Months	(3.1)
Foreign currency contracts [Member] \| Sales [Member]
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net [Abstract]
Gain (loss) reclassified from AOCI to income (effective portion)	3.4	(0.1)
Foreign currency contracts [Member] \| Selling general and administrative expenses [Member]
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net [Abstract]
Gain (loss) recognized in income (ineffective portion)		0.3
Foreign currency contracts [Member] \| Cost of goods sold [Member]
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net [Abstract]
Gain (loss) reclassified from AOCI to income (effective portion)	(0.1)	1.4
Foreign currency contracts [Member] \| Selling general and administrative expenses One [Member]
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net [Abstract]
Gain (loss) recognized in income (ineffective portion)	(0.1)
Commodity Contract [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Deferred gain (loss) in AOCI	0.0	(0.1)
Cash Flow Hedge Gain (Loss) to be Reclassified within Twelve Months	0.0
Commodity Contract [Member] \| Cost of goods sold [Member]
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net [Abstract]
Gain (loss) reclassified from AOCI to income (effective portion)	0.5	(1.4)
Gain (loss) recognized in income (ineffective portion)		(0.3)
Net investment hedge contracts [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Deferred gain (loss) in AOCI	(54.2)	29.5
Fixed rate debt swapped to floating [Member] \| Interest expense [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) on Fair Value Hedges Recognized in Earnings	$ 0.0	$ (8.5)

Accumulated other comprehensive income (loss), cumulative changes in net gain (loss) from hedges, before tax

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- Definition

The estimated net amount of existing gains or losses on cash flow hedges at the reporting date expected to be reclassified to earnings within the next 12 months.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=35736893&loc=d3e80748-113994

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No definition available.

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- Definition

The effective portion of net gain (loss) reclassified from accumulated other comprehensive income into income on derivative instruments designated and qualifying as hedging instruments.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4C
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=84234895&loc=SL5624171-113959

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
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-Section 50
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-URI http://asc.fasb.org/extlink&oid=84234895&loc=SL5624177-113959

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- Definition

The portion of gains and losses (net) on derivative instruments designated and qualifying as hedging instruments representing (a) the amount of the hedge ineffectiveness and (b) the amount, if any, excluded from the assessment of hedge effectiveness.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4C
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=84234895&loc=SL5624171-113959

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 25
-Section 50
-Paragraph 1
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-URI http://asc.fasb.org/extlink&oid=6886632&loc=d3e76258-113986

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- Definition

Total amount of gain (loss) derived from fair value hedges recognized in earnings in the period.

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