Hedging Instruments - Schedule of Notional Amounts of Outstanding Derivative Positions (Details) - Apr. 30, 2016 - Foreign Exchange Contract [Member] € in Millions, ₩ in Millions, ¥ in Millions, £ in Millions, SGD in Millions, SFr in Millions, NZD in Millions, MXN in Millions, HKD in Millions, CLP in Millions, $ in Millions	JPY (¥)	GBP (£)	CLP	SGD	EUR (€)	HKD	NZD	MXN	KRW (₩)	USD ($)	CHF (SFr)
Designated as Hedging Instrument [Member] | Cash Flow Hedging [Member] | Japan, Yen
Derivative [Line Items]
Derivative, Notional Amount	¥ 17,520.5									$ 148.6
Designated as Hedging Instrument [Member] | Cash Flow Hedging [Member] | United Kingdom, Pounds
Derivative [Line Items]
Derivative, Notional Amount		£ 17.8								26.3
Not Designated as Hedging Instrument [Member] | Japan, Yen
Derivative [Line Items]
Derivative, Notional Amount	¥ 423.5									3.8
Not Designated as Hedging Instrument [Member] | United Kingdom, Pounds
Derivative [Line Items]
Derivative, Notional Amount		£ 4.7								6.8
Not Designated as Hedging Instrument [Member] | United States of America, Dollars
Derivative [Line Items]
Derivative, Notional Amount										59.6
Not Designated as Hedging Instrument [Member] | Euro Member Countries, Euro
Derivative [Line Items]
Derivative, Notional Amount					€ 21.5					23.9
Not Designated as Hedging Instrument [Member] | Chile, Pesos
Derivative [Line Items]
Derivative, Notional Amount			CLP 2,622.9							3.9
Not Designated as Hedging Instrument [Member] | Korea (South), Won
Derivative [Line Items]
Derivative, Notional Amount									₩ 15,011.6	12.5
Not Designated as Hedging Instrument [Member] | Hong Kong, Dollars
Derivative [Line Items]
Derivative, Notional Amount						HKD 58.2				7.4
Not Designated as Hedging Instrument [Member] | Mexico, Pesos
Derivative [Line Items]
Derivative, Notional Amount								MXN 180.2		10.2
Not Designated as Hedging Instrument [Member] | New Zealand, Dollars
Derivative [Line Items]
Derivative, Notional Amount							NZD 3.1			2.1
Not Designated as Hedging Instrument [Member] | Singapore, Dollars
Derivative [Line Items]
Derivative, Notional Amount				SGD 23.9						17.7
Not Designated as Hedging Instrument [Member] | Switzerland, Francs
Derivative [Line Items]
Derivative, Notional Amount										$ 11.8	SFr 11.6