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REVENUE Remaining performance obligations (Details)
$ in Millions
 3 Months Ended
Jan. 31, 2023
USD ($)
Revenue from Contract with Customer [Abstract]  
Revenue, Remaining Performance Obligation, Amount $ 479
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]  
Document Period End Date Jan. 31, 2023
Revenue, Remaining Performance Obligation, Amount $ 479
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2023-02-01  
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]  
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period 9 months
Revenue, Remaining Performance Obligation, Percentage 38.00%
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Year 2023
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2023-11-01  
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]  
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period 1 year
Revenue, Remaining Performance Obligation, Percentage 37.00%
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Year 2024
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2024-11-01  
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]  
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period
Revenue, Remaining Performance Obligation, Percentage 25.00%