Commitments and Contingencies (Details) - USD ($) $ in Millions	Feb. 23, 2020	May 26, 2019
Workers Compensation and General Liabilities Accrued
Loss Contingencies [Line Items]
Standby letters of credit	$ 67.4	$ 75.9
Surety Bonds and Other Payments
Loss Contingencies [Line Items]
Standby letters of credit	24.8	21.6
Property Lease Guarantee
Loss Contingencies [Line Items]
Fair value of potential payments discounted at pre-tax cost of capital related to guarantee obligations	108.9	123.2
Property Lease Guarantee \| Maximum
Loss Contingencies [Line Items]
Loss contingency, estimate of possible loss	$ 133.0	$ 151.6

Fair value portion of guarantee, including, but not limited to, financial standby letter of credit, fair value guarantee, guarantee of collection of scheduled contractual cash flows from financial assets, and contracts that contingently require the guarantor to make payments or perform services.

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-Section 50
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The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

+ References

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+ References

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Reflects the estimated amount of loss from the specified contingency as of the balance sheet date.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
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-Publisher FASB
-Name Accounting Standards Codification
-Topic 460
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