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Derivative - Notional Amounts (Details) MMBTU in Millions, $ in Millions | 12 Months Ended |
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Dec. 31, 2018 USD ($) MMBTU | Dec. 31, 2017 USD ($) MMBTU
Derivative |  |
Derivative, Loss on Derivative | $ 12.0 |
Foreign Exchange Contract |  |
Derivative |  |
Derivative, notional amount | $ 2,091.7 | $ 813.5
Debt Fix-to-Float Interest Rate Swap Contract |  |
Derivative |  |
Number of Interest Rate Derivatives Held | 5 | 4
Derivative, notional amount | $ 275.0 | $ 310.0
Debt Pre-Issuance and Fix-To-Float Interest Rate Swap Contracts |  |
Derivative |  |
Derivative, notional amount | $ 585.0 | $ 585.0
Commodity Contract (MMbtu) |  |
Derivative |  |
Derivative, nonmonetary notional amount | MMBTU | 52.2 | 43.0

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- Definition Aggregate notional amount of derivative expressed in nonmonetary units. For example, the number of barrels specified in a fuel oil forward purchase contract. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Article 12 -Section 13 -Sentence Column B + Details
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- Definition Aggregate notional amount specified by the derivative(s). Expressed as an absolute value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Article 12 -Section 13 -Sentence Column B + Details
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- Definition Amount of decrease in the fair value of derivatives recognized in the income statement. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -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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