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DERIVATIVE INSTRUMENTS (Details 4) - USD ($)
$ in Millions
Jan. 31, 2016
Oct. 31, 2015
Jan. 31, 2015
Fair Value of Derivative Instruments      
Total derivative assets $ 558 $ 428 $ 625
Total derivative liabilities 86 78 129
Other Assets      
Fair Value of Derivative Instruments      
Total derivative assets 558 428 625
Accounts Payable and Accrued Expenses      
Fair Value of Derivative Instruments      
Total derivative liabilities 86 78 129
Designated as Hedging Instruments | Other Assets      
Fair Value of Derivative Instruments      
Total derivative assets 397 313 422
Designated as Hedging Instruments | Accounts Payable and Accrued Expenses      
Fair Value of Derivative Instruments      
Total derivative liabilities 7 8 7
Designated as Hedging Instruments | Interest Rate Contracts | Other Assets      
Fair Value of Derivative Instruments      
Total derivative assets 382 299 410
Designated as Hedging Instruments | Interest Rate Contracts | Accounts Payable and Accrued Expenses      
Fair Value of Derivative Instruments      
Total derivative liabilities 7 8 7
Designated as Hedging Instruments | Cross-Currency Interest Rate Contracts | Other Assets      
Fair Value of Derivative Instruments      
Total derivative assets 15 14 12
Not Designated as Hedging Instruments | Other Assets      
Fair Value of Derivative Instruments      
Total derivative assets 161 115 203
Not Designated as Hedging Instruments | Accounts Payable and Accrued Expenses      
Fair Value of Derivative Instruments      
Total derivative liabilities 79 70 122
Not Designated as Hedging Instruments | Interest Rate Contracts | Other Assets      
Fair Value of Derivative Instruments      
Total derivative assets 55 54 68
Not Designated as Hedging Instruments | Interest Rate Contracts | Accounts Payable and Accrued Expenses      
Fair Value of Derivative Instruments      
Total derivative liabilities 55 52 73
Not Designated as Hedging Instruments | Foreign Exchange Contracts | Other Assets      
Fair Value of Derivative Instruments      
Total derivative assets 92 50 125
Not Designated as Hedging Instruments | Foreign Exchange Contracts | Accounts Payable and Accrued Expenses      
Fair Value of Derivative Instruments      
Total derivative liabilities 24 18 49
Not Designated as Hedging Instruments | Cross-Currency Interest Rate Contracts | Other Assets      
Fair Value of Derivative Instruments      
Total derivative assets $ 14 $ 11 $ 10