XML 106 R93.htm IDEA: XBRL DOCUMENT v3.20.2
SHARE-BASED PAYMENTS - Performance Share Awards (Narrative) (Details) - Performance Shares - USD ($)
$ in Millions
12 Months Ended
May 31, 2020
May 26, 2019
May 27, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Compensation expense (income) $ 31.8 $ 8.2 $ 11.8
Tax benefit 2.9 2.1 3.9
Total intrinsic value of share units vested 8.4 $ 15.7 $ 11.2
Unrecognized compensation expense, net of estimated forfeitures, related to share unit awards $ 17.9    
Weighted average period for recognition 1 year 9 months 18 days    
Performance period ending in 2020      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Award vesting period 3 years    
Performance period ending in 2021      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Award vesting period 3 years    
Performance period ending in 2022      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Award vesting period 3 years    
Performance period ending in 2020, 2021 and 2022 | Minimum      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Award payout (as a percent) 0.00%    
Performance period ending in 2020, 2021 and 2022 | Maximum      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Award payout (as a percent) 200.00%