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FAIR VALUE MEASUREMENTS (Details 2) (USD $)
In Millions, unless otherwise specified
Apr. 30, 2014
Oct. 31, 2013
Apr. 30, 2013
Assets and Liabilities Measured at Fair Value on Recurring and Nonrecurring Basis      
Marketable securities $ 1,571.7 $ 1,624.8 $ 1,399.0
Derivative assets 332 394 619
Derivative liabilities 169 179 156
Transfer from Level 1 to Level 2, assets 0   0
Transfer from Level 2 to Level 1, assets 0   0
Transfer from Level 1 to Level 2, liabilities 0   0
Transfer from Level 2 to Level 1, liabilities 0   0
Assets and Liabilities Measured at Fair Value on a Recurring Basis | Level 1 and 2
      
Assets and Liabilities Measured at Fair Value on Recurring and Nonrecurring Basis      
Marketable securities 1,572.0 1,625.0 1,399.0
Total assets 1,904 2,019 2,018
Assets and Liabilities Measured at Fair Value on a Recurring Basis | Level 1 and 2 | U.S. Government Debt Securities
      
Assets and Liabilities Measured at Fair Value on Recurring and Nonrecurring Basis      
Marketable securities 1,213.0 1,312.0 1,102.0
Assets and Liabilities Measured at Fair Value on a Recurring Basis | Level 1 | Equity Fund
      
Assets and Liabilities Measured at Fair Value on Recurring and Nonrecurring Basis      
Marketable securities 30.0 20.0 3.0
Assets and Liabilities Measured at Fair Value on a Recurring Basis | Level 1 | Fixed Income Fund
      
Assets and Liabilities Measured at Fair Value on Recurring and Nonrecurring Basis      
Marketable securities 10.0    
Assets and Liabilities Measured at Fair Value on a Recurring Basis | Level 1 | U.S. Government Debt Securities
      
Assets and Liabilities Measured at Fair Value on Recurring and Nonrecurring Basis      
Marketable securities 1,144.0 1,247.0 1,041.0
Assets and Liabilities Measured at Fair Value on a Recurring Basis | Level 2
      
Assets and Liabilities Measured at Fair Value on Recurring and Nonrecurring Basis      
Total liabilities 169 179 156
Assets and Liabilities Measured at Fair Value on a Recurring Basis | Level 2 | Interest Rate Contracts | Other Assets
      
Assets and Liabilities Measured at Fair Value on Recurring and Nonrecurring Basis      
Derivative assets 296 347 589
Assets and Liabilities Measured at Fair Value on a Recurring Basis | Level 2 | Interest Rate Contracts | Accounts Payable and Accrued Expenses
      
Assets and Liabilities Measured at Fair Value on Recurring and Nonrecurring Basis      
Derivative liabilities 136 120 66
Assets and Liabilities Measured at Fair Value on a Recurring Basis | Level 2 | Foreign Exchange Contracts | Other Assets
      
Assets and Liabilities Measured at Fair Value on Recurring and Nonrecurring Basis      
Derivative assets 20 32 25
Assets and Liabilities Measured at Fair Value on a Recurring Basis | Level 2 | Foreign Exchange Contracts | Accounts Payable and Accrued Expenses
      
Assets and Liabilities Measured at Fair Value on Recurring and Nonrecurring Basis      
Derivative liabilities 33 42 36
Assets and Liabilities Measured at Fair Value on a Recurring Basis | Level 2 | Cross-Currency Interest Rate Contracts | Other Assets
      
Assets and Liabilities Measured at Fair Value on Recurring and Nonrecurring Basis      
Derivative assets 16 15 5
Assets and Liabilities Measured at Fair Value on a Recurring Basis | Level 2 | Cross-Currency Interest Rate Contracts | Accounts Payable and Accrued Expenses
      
Assets and Liabilities Measured at Fair Value on Recurring and Nonrecurring Basis      
Derivative liabilities   17 54
Assets and Liabilities Measured at Fair Value on a Recurring Basis | Level 2 | Municipal Debt Securities
      
Assets and Liabilities Measured at Fair Value on Recurring and Nonrecurring Basis      
Marketable securities 35.0 36.0 38.0
Assets and Liabilities Measured at Fair Value on a Recurring Basis | Level 2 | Corporate Debt Securities
      
Assets and Liabilities Measured at Fair Value on Recurring and Nonrecurring Basis      
Marketable securities 155.0 138.0 130.0
Assets and Liabilities Measured at Fair Value on a Recurring Basis | Level 2 | Mortgage-Backed Securities
      
Assets and Liabilities Measured at Fair Value on Recurring and Nonrecurring Basis      
Marketable securities $ 129.0 $ 119.0 $ 126.0