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SHARE-BASED AWARDS (Details) - USD ($)
$ / shares in Units, $ in Millions
3 Months Ended
Jan. 26, 2019
Oct. 27, 2018
Oct. 28, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage   33.33%  
Conversion Cost of Shares from Supervalu Plan to Replacement Award Plan   $ 32.50  
Additional Shares Authorized   5,000,000  
Shares available for grant under 2012 Plan   1,786,610  
Share-based compensation expense   $ 8.1 $ 7.3
Income tax benefit for share-based compensation expense   $ 1.9 $ 2.2
Vesting period   3 years  
Unrecognized compensation costs   $ 106.8  
Weighted-average period of unrecognized compensation cost   2 years 6 months  
Supervalu      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Share-based compensation expense   $ 0.6  
Unrecognized compensation costs   50.2  
Scenario, Forecast [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Share-based compensation expense $ 10.0    
Restructuring, Settlement and Impairment Provisions [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Charges for the settlement of share-based awards recorded as part of restructuring costs   21.4  
Change-in-control payments   $ 20.6