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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Reclassification from Other Comprehensive Income (Loss) to Income (Details) - USD ($) $ in Millions | 12 Months Ended
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May 31, 2026 | May 25, 2025 | May 26, 2024
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES |  |  |
Interest expense, net | $ (382.6) | $ (416.7) | $ (430.5)
Selling, general and administrative expenses | 1,439.4 | 1,537.3 | 1,487.5
Equity method investment earnings | 140.7 | 182.4 | 177.6
Income tax expense | 91.8 | 3.7 | 262.5
Net Income (Loss) | (1,916.2) | 1,152.4 | 347.2
Pension and postretirement non-service income (expense) | (45.9) | (25.9) | (10.3)
Reclassification out of Accumulated Other Comprehensive Income [Member] | Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member] |  |  |
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES |  |  |
Interest expense, net | (2.3) | (2.7) | (3.5)
Equity method investment earnings | (2.5) | (4.1) | (4.7)
Total before tax | (4.8) | (6.8) | (8.2)
Income tax expense | 1.2 | 1.7 | 2.0
Net Income (Loss) | (3.6) | (5.1) | (6.2)
Reclassification out of Accumulated Other Comprehensive Income [Member] | Accumulated Defined Benefit Plans Adjustment, Net Prior Service Attributable to Parent [Member] |  |  |
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES |  |  |
Pension and postretirement non-service income (expense) | (0.2) | (0.1) | (0.1)
Reclassification out of Accumulated Other Comprehensive Income [Member] | Accumulated Defined Benefit Plans Adjustment, Net Gain (Loss) Attributable to Parent [Member] |  |  |
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES |  |  |
Pension and postretirement non-service income (expense) | (3.4) | (5.1) | (4.7)
Reclassification out of Accumulated Other Comprehensive Income [Member] | Accumulated Defined Benefit Plans, Adjustment Settlement, Attributable to Parent [Member] | Postretirement Health Coverage [Member] |  |  |
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES |  |  |
Pension and postretirement non-service income (expense) | 2.7 | (13.0) | 1.1
Reclassification out of Accumulated Other Comprehensive Income [Member] | Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member] |  |  |
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES |  |  |
Total before tax | (0.9) | (18.2) | (3.7)
Income tax expense | 0.3 | 4.4 | 0.9
Net Income (Loss) | $ (0.6) | (13.8) | $ (2.8)
Reclassification out of Accumulated Other Comprehensive Income [Member] | Accumulated Foreign Currency Adjustment Attributable to Parent [Member] |  |  |
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES |  |  |
Selling, general and administrative expenses |  | 41.8 |
Total before tax |  | 41.8 |
Net Income (Loss) |  | $ 41.8 |

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