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Restructuring Expense - Schedule of Restructuring Rollforward (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Nov. 28, 2020 | Aug. 29, 2020 | Nov. 30, 2019 | Nov. 28, 2020 | Nov. 30, 2019
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Restructuring Costs | $ 2.4 |  | $ 4.2 | $ 1.2 | $ 6.1
Gain (Loss) on Disposition of Assets |  | $ (3.4) |  |  |
International Contract |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Restructuring Costs | 1.6 |  | 0.4 | (1.2) | 0.6
North America Contract |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Restructuring Costs | 0.8 |  | $ 3.8 | 2.4 | $ 5.5
Other Restructuring Plans |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Beginning Balance |  | 6.7 |  | 6.7 |
Restructuring Costs |  |  |  | (1.9) |
Amounts Paid |  |  |  | (2.2) |
Gain (Loss) on Disposition of Assets |  |  |  | 3.4 |
Ending Balance | 6.0 |  |  | 6.0 |
Severance and Employee-Related | Other Restructuring Plans |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Beginning Balance |  | 5.9 |  | 5.9 |
Restructuring Costs |  |  |  | 0.1 |
Amounts Paid |  |  |  | (2.1) |
Ending Balance | 3.9 |  |  | 3.9 |
Severance and Employee-Related | May 2020 Restructuring Plan |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Beginning Balance |  | 15.3 |  | 15.3 |
Restructuring Costs |  |  |  | 3.1 |
Amounts Paid |  |  |  | (16.0) |
Ending Balance | 2.4 |  |  | 2.4 |
Exit or Disposal Activities | Other Restructuring Plans |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Beginning Balance |  | $ 0.8 |  | 0.8 |
Restructuring Costs |  |  |  | (2.0) |
Amounts Paid |  |  |  | (0.1) |
Gain (Loss) on Disposition of Assets |  |  |  | 3.4 |
Ending Balance | $ 2.1 |  |  | $ 2.1 |

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