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SHARE-BASED PAYMENTS (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Nov. 24, 2019 | Nov. 25, 2018 | Nov. 24, 2019 | Nov. 25, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Total stock-based compensation expense | $ 12.6 | $ 22.9 | $ 24.5 | $ 35.2
Stock-based compensation expense due to accelerated vesting of awards related to Pinnacle integration restructuring activities | 0.4 | $ 20.2 | $ 0.7 | 20.2
Restricted stock units |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Stock granted, shares (in shares) |  |  | 1.2 |
Weighted average grant date price (in dollars per share) |  |  | $ 28.21 |
Performance shares |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Stock granted, shares (in shares) |  |  | 0.6 |
Weighted average grant date price (in dollars per share) |  |  | $ 28.41 |
Performance shares | Fiscal 2020 |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Vesting period |  |  | 3 years |
Performance shares | Fiscal 2021 |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Vesting period |  |  | 3 years |
Performance shares | Fiscal 2022 |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Vesting period |  |  | 3 years |
Performance shares | Minimum | Fiscal 2020 |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Award payout (as a percent) |  |  | 0.00% |
Performance shares | Minimum | Fiscal 2021 |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Award payout (as a percent) |  |  | 0.00% |
Performance shares | Minimum | Fiscal 2022 |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Award payout (as a percent) |  |  | 0.00% |
Performance shares | Maximum | Fiscal 2020 |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Award payout (as a percent) |  |  | 200.00% |
Performance shares | Maximum | Fiscal 2021 |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Award payout (as a percent) |  |  | 200.00% |
Performance shares | Maximum | Fiscal 2022 |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Award payout (as a percent) |  |  | 200.00% |
Pinnacle Foods Inc. (Pinnacle) |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Stock granted, shares (in shares) |  | 2.0 |  |
Weighted average grant date price (in dollars per share) |  | $ 36.37 |  |
Fair value of replacement awards granted attributable to pre-combination service | 7.4 | $ 51.1 | $ 7.4 | $ 51.1
Post-combination expense expected to be recognized | $ 1.4 |  | $ 1.4 |
Remaining post-combination recognition period |  |  | 1 year |
Pinnacle Foods Inc. (Pinnacle) | Stock appreciation rights |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Stock granted, shares (in shares) |  | 2.3 |  |
Weighted average grant date price (in dollars per share) |  | $ 36.37 |  |

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