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SHARE-BASED PAYMENTS (Details) - USD ($)
$ / shares in Units, shares in Millions, $ in Millions
3 Months Ended
Aug. 26, 2018
Aug. 27, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Total stock-based compensation expense (income) $ 12.3 $ 6.4
Stock options | Subsidiary    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Total stock-based compensation expense (income) $ 0.1 $ 0.3
Restricted stock units    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Stock granted, shares (in shares) 0.8  
Weighted average grant date price (in dollars per share) $ 36.16  
Performance shares    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Stock granted, shares (in shares) 0.5  
Weighted average grant date price (in dollars per share) $ 35.96  
Performance shares | Fiscal 2019    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Vesting period 3 years  
Period of measurement for diluted EPS CAGR 2 years  
Performance shares | Fiscal 2020    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Vesting period 3 years  
Performance shares | 2016 EBITDA | Fiscal 2018    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Performance shares based on earnings per share goal and EBITDA return on capital (as a percent) 33.33%  
Performance shares | 2017 EBITDA | Fiscal 2018    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Performance shares based on earnings per share goal and EBITDA return on capital (as a percent) 33.33%  
Performance shares | 2017 EBITDA | Fiscal 2019    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Performance shares based on earnings per share goal and EBITDA return on capital (as a percent) 33.33%  
Performance shares | 2018 EBITDA | Fiscal 2018    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Performance shares based on earnings per share goal and EBITDA return on capital (as a percent) 33.33%  
Performance shares | 2019 diluted EPS CAGR | Fiscal 2019    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Performance shares based on earnings per share goal and EBITDA return on capital (as a percent) 66.66%