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BENEFIT PLANS - Narrative (Details)
$ in Millions
 3 Months Ended 12 Months Ended
Oct. 27, 2018
USD ($)
employee
agreement
Oct. 28, 2017
USD ($)
Aug. 01, 2020
agreement
employee
Aug. 03, 2019
agreement
employee
Oct. 22, 2018
Pension Plans, Postretirement and Other Employee Benefits [Line Items]          
Multiemployer Plans, Withdrawal Obligation $ 35.7        
Impact to service and interest cost with a 100 basis point increase in the trend rate 0.0        
Company's accumulated postretirement benefit obligation would impact due to a 100 basis point decrease in the trend rate 2.7        
Company's accumulated postretirement benefit obligation would impact due to a 100 basis point increase in the trend rate 3.2        
Employer contribution in defined contribution plans $ 3.3 $ 2.8      
Company's number of employees (employees) | employee 19,900        
Number of employees covered by collective bargaining agreements (employees) | employee 4,900        
Number of collective bargaining agreements for covered employees (agreements) | agreement 45        
Number of collective bargaining agreements covering employees renegotiated (agreements) | agreement 6        
Number of employees renegotiated collective bargaining agreement (employees) | employee 775        
Number of collective bargaining agreements covering employees expired without renegotiated (agreements) | agreement 1        
Number of employees expire without renegotiated collective bargaining agreement | employee 10        
Maximum          
Pension Plans, Postretirement and Other Employee Benefits [Line Items]          
Expected employer contributions in current fiscal year $ 10.0        
Minimum          
Pension Plans, Postretirement and Other Employee Benefits [Line Items]          
Expected employer contributions in current fiscal year 5.0        
Multiemployer Postretirement Benefit          
Pension Plans, Postretirement and Other Employee Benefits [Line Items]          
Contribution to multi-employer plans $ 0.1        
Post-Employment Benefits | Retirement Plan, Before Age 65 [Member]          
Pension Plans, Postretirement and Other Employee Benefits [Line Items]          
Assumed healthcare cost trend rate         7.80%
Assumed healthcare cost ultimate trend rate         4.50%
Post-Employment Benefits | Retirement Plan, After Age 65 [Member]          
Pension Plans, Postretirement and Other Employee Benefits [Line Items]          
Assumed healthcare cost trend rate         8.70%
Assumed healthcare cost ultimate trend rate         4.50%
Scenario, Forecast [Member]          
Pension Plans, Postretirement and Other Employee Benefits [Line Items]          
Number of collective bargaining agreements covering employees expired (agreements) | agreement     6 11  
Number of employee expire collective bargaining agreement (employees) | employee     460 1,100