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LEASES Maturity analysis (Details) - USD ($)
$ in Millions
Jul. 31, 2020
Nov. 01, 2019
Leases [Abstract]    
2020 (remainder) $ 13  
2021 47  
2022 38  
2023 26  
2024 17  
Thereafter 82  
Total undiscounted lease liability 223  
Imputed interest 25  
Operating Lease, Liability $ 198 $ 164