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Financial Instruments (Derivative Narrative) (Details) - USD ($) $ in Millions | 9 Months Ended |
--- | --- | ---
Oct. 31, 2019 | Jan. 31, 2019
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |
Net gain expected to be recognized in next 24 months | $ 10.7 |
Minimum | Foreign currency contracts |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |
Derivative instrument, term | 1 month |
Maximum | Foreign currency contracts |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |
Derivative instrument, term | 12 months |
Designated as hedging instrument |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |
Derivative, notional amount | $ 1,250.0 | $ 803.5
Derivatives not designated as hedging instruments | Foreign currency contracts |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |
Derivative, notional amount | $ 357.1 | $ 579.8

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- Definition Interest Rate Cash Flow Hedge Gain (Loss) to be Reclassified During Next 24 Months, Net + References No definition available. + 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 Nominal or face amount used to calculate payment on derivative. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1B -URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5580258-113959 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5579245-113959 + Details
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- Definition Period the derivative contract is outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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- Details
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- Details
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- Details
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- Details
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- Details
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