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DERIVATIVE INSTRUMENTS (Details 3) - Not Designated as Hedging Instruments - USD ($) $ in Millions | Jan. 31, 2016 | Oct. 31, 2015 | Jan. 31, 2015
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Interest Rate Contracts |  |  |
Derivatives Not Designated as Hedging Instruments |  |  |
Notional amounts | $ 6,060 | $ 6,333 | $ 6,252
Interest Rate Contracts | Purchased |  |  |
Derivatives Not Designated as Hedging Instruments |  |  |
Notional amounts | 904 | 1,069 | 1,502
Interest Rate Contracts | Sold |  |  |
Derivatives Not Designated as Hedging Instruments |  |  |
Notional amounts | 904 | 1,069 | 1,502
Foreign Exchange Contracts |  |  |
Derivatives Not Designated as Hedging Instruments |  |  |
Notional amounts | 3,791 | 3,160 | 3,939
Cross-Currency Interest Rate Contracts |  |  |
Derivatives Not Designated as Hedging Instruments |  |  |
Notional amounts | $ 73 | $ 76 | $ 97

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- Definition Aggregate notional amount specified by the derivative(s). Expressed as an absolute value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Article 12 -Section 13 -Sentence Column B + Details
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