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GOODWILL AND OTHER INTANGIBLE ASSETS-NET (Details 3) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Apr. 30, 2016
Apr. 30, 2015
Apr. 30, 2016
Apr. 30, 2015
Amortized Intangible Assets:        
Amortization expense of other intangible assets $ 3 $ 2 $ 6 $ 5
Amortization expense of other intangible assets - remainder of 2016 10   10  
Amortization expense of other intangible assets - 2017 21   21  
Amortization expense of other intangible assets - 2018 21   21  
Amortization expense of other intangible assets - 2019 17   17  
Amortization expense of other intangible assets - 2020 $ 13   $ 13