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LONG-TERM DEBT (Details) - USD ($)
$ in Millions
Jul. 31, 2019
Nov. 01, 2018
Oct. 31, 2018
Debt Instrument      
Long-term debt $ 1,294   $ 1,792
Interest rate swap 0   7
Long-term Debt, Excluding Current Maturities 1,294 $ 1,799 1,799
Senior Notes 2020      
Debt Instrument      
Long-term debt     499
Interest rate swap 4   7
Long-term Debt, Excluding Current Maturities     506
Senior Notes 2022      
Debt Instrument      
Long-term debt 399   399
Interest rate swap 0   0
Long-term Debt, Excluding Current Maturities 399   399
Senior Notes 2023      
Debt Instrument      
Long-term debt 597   597
Interest rate swap 0   0
Long-term Debt, Excluding Current Maturities 597   597
Senior Notes 2026      
Debt Instrument      
Long-term debt 298   297
Interest rate swap 0   0
Long-term Debt, Excluding Current Maturities $ 298   $ 297