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Note 11 - Capital Stock (Details Textual) - USD ($) $ / shares in Units, $ in Millions | 12 Months Ended
--- | ---
May 28, 2023 | May 29, 2022 | May 30, 2021
Common Stock And Preferred Stock Shares, Authorized (in shares) | 1,218,050,000 |  |
Common Stock, Shares Authorized (in shares) | 1,200,000,000 | 1,200,000,000 |
Common Stock, Par or Stated Value Per Share (in dollars per share) | $ 5 | $ 5 |
Preferred Stock, Shares Outstanding, Ending Balance (in shares) | 0 |  |
Series B Preferred Stock [Member] |  |  |
Preferred Stock, Shares Authorized (in shares) | 150,000 |  |
Preferred Stock, Par or Stated Value Per Share (in dollars per share) | $ 50.00 |  |
Series C Preferred Stock [Member] |  |  |
Preferred Stock, Shares Authorized (in shares) | 250,000 |  |
Preferred Stock, Par or Stated Value Per Share (in dollars per share) | $ 100.00 |  |
Series D Preferred Stock [Member] |  |  |
Preferred Stock, Shares Authorized (in shares) | 1,100,000 |  |
Series E Preferred Stock [Member] |  |  |
Preferred Stock, Shares Authorized (in shares) | 16,550,000 |  |
Common Stock [Member] |  |  |
Stock Repurchased During Period, Shares (in shares) | 4,200,000 | 1,500,000 | 8,800,000
Stock Repurchased During Period, Value | $ 150.0 | $ 50.0 | $ 298.1

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