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DEBT (Carrying Value) (Details) - USD ($)
$ in Millions
Oct. 31, 2015
Oct. 31, 2014
Senior Notes 2019 [Member]    
Debt Instrument [Line Items]    
Unsecured long-term debt, noncurrent $ 499 $ 499
Senior Notes 2024 [Member]    
Debt Instrument [Line Items]    
Unsecured long-term debt, noncurrent 600 600
Senior Notes [Member]    
Debt Instrument [Line Items]    
Unsecured long-term debt, noncurrent $ 1,099 $ 1,099