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PENSION AND POSTRETIREMENT BENEFITS - Narrative (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jan. 02, 2020
Nov. 24, 2019
Aug. 25, 2019
Nov. 25, 2018
Nov. 24, 2019
Nov. 25, 2018
May 27, 2019
Pension Benefits              
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]              
Pension curtailment loss within other comprehensive income (loss)   $ 0.0   $ 0.0 $ 0.6 $ 0.0  
Weighted average discount rate for service costs   3.47% 4.04%        
Weighted average discount rate for interest costs   2.94% 3.51%        
Employer contributions to pension and other postretirement plans   $ 4.0     7.4    
Anticipated further contributions for the remainder of fiscal 2020   6.8     6.8    
Pension Benefits | Subsequent Event              
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]              
Lump-sum settlement payment $ 155.0            
Postretirement Benefits              
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]              
Pension curtailment loss within other comprehensive income (loss)   0.0   $ 0.0 0.0 $ (0.6)  
Employer contributions to pension and other postretirement plans   0.8     2.0    
Anticipated further contributions for the remainder of fiscal 2020   $ 8.8     $ 8.8    
Spinoff | Pension Benefits              
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]              
Effective discount rate assumption     3.13%       3.90%
Pension curtailment loss within other comprehensive income (loss)     $ 0.6        
Increase to underfunded status of the pension plans     $ 12.3