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INVESTMENTS IN JOINT VENTURES - Summary of Combined Financial Information (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
May 31, 2020 | May 26, 2019 | May 27, 2018
Statement of Earnings |  |  |
Total net sales | $ 3,618.9 | $ 3,671.4 | $ 3,542.9
Total gross margin | 362.5 | 327.4 | 421.3
Total earnings after income taxes | 163.8 | 170.0 | 207.1
Ardent Mills |  |  |
Statement of Earnings |  |  |
Total net sales | 3,393.9 | 3,476.0 | 3,344.1
Total gross margin | 313.1 | 281.9 | 386.5
Total earnings after income taxes | 144.5 | 151.9 | 197.0
Balance Sheet |  |  |
Current assets | 1,010.6 | 952.6 |
Noncurrent assets | 1,720.2 | 1,669.8 |
Current liabilities | 454.8 | 361.2 |
Noncurrent liabilities | 503.4 | 496.9 |
Others |  |  |
Statement of Earnings |  |  |
Total net sales | 225.0 | 195.4 | 198.8
Total gross margin | 49.4 | 45.5 | 34.8
Total earnings after income taxes | 19.3 | 18.1 | $ 10.1
Balance Sheet |  |  |
Current assets | 87.1 | 89.2 |
Noncurrent assets | 24.5 | 19.0 |
Current liabilities | 44.1 | 43.4 |
Noncurrent liabilities | $ 8.3 | $ 0.7 |

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