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LONG-TERM DEBT (Details) - USD ($)
$ in Millions
Jan. 31, 2017
Oct. 31, 2016
Debt Instrument    
Long-term debt $ 1,788 $ 1,888
Interest rate swap 14 16
Long-term Debt, Excluding Current Maturities 1,802 1,904
Senior Notes 2017    
Debt Instrument    
Long-term debt   100
Interest rate swap   1
Long-term Debt, Excluding Current Maturities   101
Senior Notes 2020    
Debt Instrument    
Long-term debt 498 498
Interest rate swap 14 15
Long-term Debt, Excluding Current Maturities 512 513
Senior Notes 2022    
Debt Instrument    
Long-term debt 398 398
Interest rate swap 0 0
Long-term Debt, Excluding Current Maturities 398 398
Senior Notes 2023    
Debt Instrument    
Long-term debt 595 595
Interest rate swap 0 0
Long-term Debt, Excluding Current Maturities 595 595
Senior Notes 2026    
Debt Instrument    
Long-term debt 297 297
Interest rate swap 0 0
Long-term Debt, Excluding Current Maturities $ 297 297
Long-term Debt | Adjustments for New Accounting Pronouncement    
Debt Instrument    
Debt Issuance Costs, Net   $ 8