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Derivative Financial Instruments and Fair Value Measurements - Effect of Net Investment Hedges on AOCI (Details) - Euro-denominated notes - Net Investment Hedging - Designated as hedging instrument - USD ($) $ in Millions | 3 Months Ended
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Mar. 31, 2019 | Mar. 31, 2018
Derivative [Line Items] |  |
Gain Recognized in Other Comprehensive Income | $ 22.4 |
(Loss) Recognized in Other Comprehensive Income |  | $ (21.2)

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- Definition Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), After Reclassification And Tax + References No definition available. + Details
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- Definition Amount after tax and reclassification adjustments, 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://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 10A -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=84228862&loc=SL7669646-108580 + Details
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