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STOCKHOLDERS' EQUITY - Stock Repurchase Program (Details) (USD $)
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3 Months Ended | 0 Months Ended | ||
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Jan. 31, 2015
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Jan. 31, 2014
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Nov. 22, 2013
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May 14, 2013
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| Share Repurchase Program [Line Items] | ||||
| Cost to repurchases shares of common stock under share repurchase program | $ 6,000,000 | $ 100,000,000 | ||
| Number of shares repurchased (in shares) | 158,000 | 2,000,000 | ||
| 2014 Share Repurchase Program | ||||
| Share Repurchase Program [Line Items] | ||||
| Initial amount authorized | $ 1,000,000,000 | |||
| Maintain weighted average diluted shares count | 335,000,000 | |||