v3.26.1
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
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