DERIVATIVES, Disclosures and derivative instrument aggregated notional amounts by currency and designations (Details) (USD $) In Millions, unless otherwise specified	Apr. 30, 2013
Forward Contracts Buy/(Sell) [Member] | Derivatives Not Designated as Hedging Instruments [Member]
Derivative [Line Items]
Euro - Sell	$ 0
Euro - Buy	159
British Pound - Buy	0
British Pound - Sell	0
Canadian Dollar - Buy	0
Canadian Dollar - Sell	0
Australian Dollar - Buy	17
Australian Dollar - Sell	0
Malaysian Ringgit - Buy	27
Malaysian Ringgit - Sell	0
Japanese Yen - Buy	34
Japanese Yen - Sell	0
Other Currency - Buy	0
Other Currency - Sell	(8)
Total notional amount	229
Danish Krone sell Euro	59
Danish Krone sell Japanese Yen	1
Derivatives Designated as Hedging Instruments [Member] | Forward Contracts Buy/(Sell) [Member]
Derivative [Line Items]
Euro - Sell	(56)
Euro - Buy	0
British Pound - Buy	0
British Pound - Sell	0
Canadian Dollar - Buy	0
Canadian Dollar - Sell	(45)
Australian Dollar - Buy	11
Australian Dollar - Sell	0
Malaysian Ringgit - Buy	111
Malaysian Ringgit - Sell	0
Japanese Yen - Buy	0
Japanese Yen - Sell	(16)
Other Currency - Buy	0
Other Currency - Sell	(11)
Total notional amount	(6)
Derivatives Designated as Hedging Instruments [Member] | Option Contracts Buy/(Sell) [Member]
Derivative [Line Items]
Euro - Sell	0
Euro - Buy	0
British Pound - Buy	0
British Pound - Sell	0
Canadian Dollar - Buy	0
Canadian Dollar - Sell	0
Australian Dollar - Buy	0
Australian Dollar - Sell	0
Malaysian Ringgit - Buy	0
Malaysian Ringgit - Sell	0
Japanese Yen - Buy	0
Japanese Yen - Sell	(85)
Other Currency - Buy	0
Other Currency - Sell	0
Total notional amount	$ (85)