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Derivatives - Derivatives by Income Statement Location (Details) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Derivatives not designated as hedges |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Amount of Gain / (Loss) Recognized in Other Income / Expense | $ (2.5) | $ 2.7 | $ 1.0
Other income, net | Foreign exchange contracts | Derivatives not designated as hedges |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Amount of Gain / (Loss) Recognized in Other Income / Expense | (2.5) | 2.7 | 1.0
Cash Flow Hedging |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Unrealized Gain (Loss) Recognized in AOCI on Derivatives, Net of Tax | 2.4 | 2.0 | 13.2
Loss (Gain) Reclassified from AOCI, Net of Tax | 3.7 | (0.3) | (6.5)
Cash Flow Hedging | Interest rate contracts |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Unrealized Gain (Loss) Recognized in AOCI on Derivatives, Net of Tax | 4.0 | 0.4 | (0.1)
Cash Flow Hedging | Net sales | Foreign exchange contracts |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Unrealized Gain (Loss) Recognized in AOCI on Derivatives, Net of Tax | (1.7) | 2.2 | 14.8
Loss (Gain) Reclassified from AOCI, Net of Tax | 0.8 | 0.4 | (3.8)
Cash Flow Hedging | Other income, net | Foreign exchange contracts |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Unrealized Gain (Loss) Recognized in AOCI on Derivatives, Net of Tax | 0.1 | (0.6) | (1.5)
Loss (Gain) Reclassified from AOCI, Net of Tax | 0.1 | 0.5 | (2.1)
Cash Flow Hedging | Interest expense | Interest rate contracts |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Loss (Gain) Reclassified from AOCI, Net of Tax | $ 2.8 | $ (1.2) | $ (0.6)

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- Definition Amount of increase (decrease) in the fair value of derivatives recognized in the income statement. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4A -Subparagraph (b)(1) -URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5618551-113959 + Details
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- Definition 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. + References No definition available. + Details
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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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4D -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5624177-113959 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5624171-113959 + Details
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- Definition Amount before tax of increase (decrease) in accumulated gain (loss) from derivative instruments designated and qualifying as the effective portion of cash flow hedges and an entity's share of an equity investee's increase (decrease) in deferred hedging gain (loss). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=114867106&loc=d3e637-108580 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 30 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=109978405&loc=d3e80720-113993 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 10A -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=114867106&loc=SL7669646-108580 + Details
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