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PENSION AND POSTRETIREMENT BENEFITS - Schedule of Pension Plan Weighted-Average Asset Allocations and Target Asset Allocations (Details) - USD ($) $ in Millions | May 31, 2026 | May 25, 2025
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PENSION AND POSTRETIREMENT BENEFITS |  |
Weighted-average Asset Allocations | 100.00% | 100.00%
Defined Benefit Plan, Cash and Cash Equivalents [Member] |  |
PENSION AND POSTRETIREMENT BENEFITS |  |
Total pension plan assets |  | $ 93.1
Defined Benefit Plan, Equity Securities [Member] |  |
PENSION AND POSTRETIREMENT BENEFITS |  |
Weighted-average Asset Allocations | 8.00% | 7.00%
Defined Benefit Plan, Equity Securities, US [Member] |  |
PENSION AND POSTRETIREMENT BENEFITS |  |
Total pension plan assets |  | $ 98.9
Defined Benefit Plan, Debt Security [Member] |  |
PENSION AND POSTRETIREMENT BENEFITS |  |
Weighted-average Asset Allocations | 82.00% | 81.00%
Employee Benefit Plan, Real Estate [Member] |  |
PENSION AND POSTRETIREMENT BENEFITS |  |
Weighted-average Asset Allocations | 1.00% | 1.00%
Private Equity Funds [Member] |  |
PENSION AND POSTRETIREMENT BENEFITS |  |
Weighted-average Asset Allocations | 3.00% | 4.00%
Other Plan Asset Category [Member] |  |
PENSION AND POSTRETIREMENT BENEFITS |  |
Weighted-average Asset Allocations | 6.00% | 7.00%
Pension Plan Assets [Member] |  |
PENSION AND POSTRETIREMENT BENEFITS |  |
Total pension plan assets | $ 1,952.5 | $ 1,946.8
Fair Value, Inputs, Level 1 [Member] | Defined Benefit Plan, Cash and Cash Equivalents [Member] |  |
PENSION AND POSTRETIREMENT BENEFITS |  |
Total pension plan assets | 8.6 | 0.3
Fair Value, Inputs, Level 1 [Member] | Defined Benefit Plan, Equity Securities [Member] |  |
PENSION AND POSTRETIREMENT BENEFITS |  |
Total pension plan assets | 87.7 |
Fair Value, Inputs, Level 1 [Member] | Defined Benefit Plan, Equity Securities, US [Member] |  |
PENSION AND POSTRETIREMENT BENEFITS |  |
Total pension plan assets | 45.0 | 73.6
Fair Value, Inputs, Level 1 [Member] | Defined Benefit Plan, Equity Securities, Non-US [Member] |  |
PENSION AND POSTRETIREMENT BENEFITS |  |
Total pension plan assets |  | 38.3
Fair Value, Inputs, Level 1 [Member] | Receivable For Unsettled Transactions [Member] |  |
PENSION AND POSTRETIREMENT BENEFITS |  |
Total pension plan assets | 60.7 | 43.0
Fair Value, Inputs, Level 1 [Member] | Pension Plan Assets [Member] |  |
PENSION AND POSTRETIREMENT BENEFITS |  |
Total pension plan assets | 80.6 | 68.6
Fair Value, Inputs, Level 2 [Member] | Defined Benefit Plan, Cash and Cash Equivalents [Member] |  |
PENSION AND POSTRETIREMENT BENEFITS |  |
Total pension plan assets | 83.3 | 93.4
Fair Value, Inputs, Level 2 [Member] | Defined Benefit Plan, Equity Securities [Member] |  |
PENSION AND POSTRETIREMENT BENEFITS |  |
Total pension plan assets | 9.5 |
Fair Value, Inputs, Level 2 [Member] | Defined Benefit Plan, Equity Securities, US [Member] |  |
PENSION AND POSTRETIREMENT BENEFITS |  |
Total pension plan assets |  | 25.3
Fair Value, Inputs, Level 2 [Member] | US Treasury and Government [Member] |  |
PENSION AND POSTRETIREMENT BENEFITS |  |
Total pension plan assets | 736.3 | 373.5
Fair Value, Inputs, Level 2 [Member] | Corporate Debt Securities [Member] |  |
PENSION AND POSTRETIREMENT BENEFITS |  |
Total pension plan assets | 816.6 | 1,145.9
Fair Value, Inputs, Level 2 [Member] | Collateralized Mortgage-Backed Securities [Member] |  |
PENSION AND POSTRETIREMENT BENEFITS |  |
Total pension plan assets | 81.5 | 78.0
Fair Value, Inputs, Level 2 [Member] | Pension Plan Assets [Member] |  |
PENSION AND POSTRETIREMENT BENEFITS |  |
Total pension plan assets | 1,727.2 | 1,716.1
Fair Value, Inputs, Level 1, Level 2, and Level 3 [Member] | Defined Benefit Plan, Cash and Cash Equivalents [Member] |  |
PENSION AND POSTRETIREMENT BENEFITS |  |
Total pension plan assets | 91.9 |
Fair Value, Inputs, Level 1, Level 2, and Level 3 [Member] | Defined Benefit Plan, Equity Securities [Member] |  |
PENSION AND POSTRETIREMENT BENEFITS |  |
Total pension plan assets | 97.2 |
Fair Value, Inputs, Level 1, Level 2, and Level 3 [Member] | Defined Benefit Plan, Equity Securities, US [Member] |  |
PENSION AND POSTRETIREMENT BENEFITS |  |
Total pension plan assets | 45.0 |
Fair Value, Inputs, Level 1, Level 2, and Level 3 [Member] | Defined Benefit Plan, Equity Securities, Non-US [Member] |  |
PENSION AND POSTRETIREMENT BENEFITS |  |
Total pension plan assets |  | 38.3
Fair Value, Inputs, Level 1, Level 2, and Level 3 [Member] | US Treasury and Government [Member] |  |
PENSION AND POSTRETIREMENT BENEFITS |  |
Total pension plan assets | 736.3 | 373.5
Fair Value, Inputs, Level 1, Level 2, and Level 3 [Member] | Corporate Debt Securities [Member] |  |
PENSION AND POSTRETIREMENT BENEFITS |  |
Total pension plan assets | 816.6 | 1,145.9
Fair Value, Inputs, Level 1, Level 2, and Level 3 [Member] | Collateralized Mortgage-Backed Securities [Member] |  |
PENSION AND POSTRETIREMENT BENEFITS |  |
Total pension plan assets | 81.5 | 78.0
Fair Value, Inputs, Level 1, Level 2, and Level 3 [Member] | Receivable For Unsettled Transactions [Member] |  |
PENSION AND POSTRETIREMENT BENEFITS |  |
Total pension plan assets | 60.7 | 43.0
Fair Value, Inputs, Level 1, Level 2, and Level 3 [Member] | Pension Plan Assets [Member] |  |
PENSION AND POSTRETIREMENT BENEFITS |  |
Total pension plan assets | 1,807.8 | 1,784.7
Fair Value Measured at Net Asset Value Per Share [Member] | Pension Plan Assets [Member] |  |
PENSION AND POSTRETIREMENT BENEFITS |  |
Total pension plan assets | $ 144.7 | $ 162.1

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