Note 16 - Derivative Financial Instruments (Details Textual) - USD ($) $ in Millions	3 Months Ended		12 Months Ended
	Nov. 24, 2020	Nov. 24, 2019	May 28, 2023	May 29, 2022	May 30, 2021	May 31, 2020
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification and Tax			$ 4.2	$ 8.5	$ 0.4
Equity, Including Portion Attributable to Noncontrolling Interest			8,807.3	8,862.2	$ 8,631.4	$ 7,950.7
Derivative Asset, Subject to Master Netting Arrangement, Collateral, Obligation to Return Cash, Offset Against Derivative Asset			8.3	20.1
Derivative Liability, Subject to Master Netting Arrangement, Collateral, Right to Reclaim Cash Offset			13.0	16.1
Fair Value, Inputs, Level 2 [Member]
Credit Derivative, Maximum Exposure, Undiscounted			0.6
Prepaid Expenses and Other Current Assets [Member]
Derivative Asset, Subject to Master Netting Arrangement, Collateral, Obligation to Return Cash Not Offset			21.3	4.0
Cash Flow Hedge Pinnacle [Member]
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification and Tax		$ 47.5
Write off of Deferred Debt Issuance Cost	$ 0.5
Cash Flow Hedge Pinnacle [Member] | Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member]
Equity, Including Portion Attributable to Noncontrolling Interest			31.5
Commodity Contract [Member] | Short [Member]
Derivative, Notional Amount			134.6	96.7
Commodity Contract [Member] | Long [Member]
Derivative, Notional Amount				115.3
Foreign Exchange Contract [Member]
Derivative, Notional Amount			$ 87.3	$ 106.6