Hedging Instruments - Schedule of Notional Amounts of Outstanding Derivative Positions (Details) - Jan. 31, 2016 - Foreign Exchange Contract [Member] € in Millions, ¥ in Millions, £ in Millions, SGD in Millions, SFr in Millions, MXN in Millions, HKD in Millions, $ in Millions	JPY (¥)	USD ($)	GBP (£)	SGD	EUR (€)	HKD	MXN	CHF (SFr)
Not Designated as Hedging Instrument [Member] | Japan, Yen
Derivative [Line Items]
Derivative, Notional Amount	¥ 1,048.5	$ 8.8
Not Designated as Hedging Instrument [Member] | United Kingdom, Pounds
Derivative [Line Items]
Derivative, Notional Amount		5.5	£ 3.9
Not Designated as Hedging Instrument [Member] | United States of America, Dollars
Derivative [Line Items]
Derivative, Notional Amount		52.8
Not Designated as Hedging Instrument [Member] | Euro Member Countries, Euro
Derivative [Line Items]
Derivative, Notional Amount		16.5			€ 15.1
Not Designated as Hedging Instrument [Member] | Hong Kong, Dollars
Derivative [Line Items]
Derivative, Notional Amount		7.4				HKD 58.2
Not Designated as Hedging Instrument [Member] | Mexico, Pesos
Derivative [Line Items]
Derivative, Notional Amount		12.3					MXN 215.2
Not Designated as Hedging Instrument [Member] | Singapore, Dollars
Derivative [Line Items]
Derivative, Notional Amount		19.9		SGD 28.6
Not Designated as Hedging Instrument [Member] | Switzerland, Francs
Derivative [Line Items]
Derivative, Notional Amount		22.1						SFr 22.2
Cash Flow Hedging [Member] | Japan, Yen
Derivative [Line Items]
Derivative, Notional Amount	¥ 17,444.7	145.5
Cash Flow Hedging [Member] | United Kingdom, Pounds
Derivative [Line Items]
Derivative, Notional Amount		$ 23.0	£ 15.0