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Retirement And Postemployment Benefits (Components Of Net Periodic Benefit Expense(Income)) (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Nov. 24, 2024
Nov. 26, 2023
Nov. 24, 2024
Nov. 26, 2023
Defined Benefit Pension Plans [Member]        
Components of Net Periodic Benefit Cost [Abstract]        
Service cost $ 12.9 $ 14.4 $ 25.9 $ 28.6
Interest cost 76.7 74.1 153.4 148.3
Expected return on plan assets (105.0) (106.0) (210.0) (208.9)
Amortization of losses (gains) 24.9 21.5 50.0 43.0
Amortization of prior service costs (credits) 0.4 0.5 0.7 0.9
Other adjustments 0.0 0.0 0.0 0.0
Curtailment gain 0.0 (3.4) 0.0 (3.4)
Net expense (income) 9.9 1.1 20.0 8.5
Other Postretirement Benefit Plans [Member]        
Components of Net Periodic Benefit Cost [Abstract]        
Service cost 1.1 1.2 2.2 2.4
Interest cost 5.3 5.4 10.6 10.7
Expected return on plan assets (8.9) (8.7) (17.9) (17.4)
Amortization of losses (gains) (5.1) (5.1) (10.3) (10.2)
Amortization of prior service costs (credits) (5.6) (5.5) (11.1) (10.9)
Other adjustments 0.0 0.0 0.0 0.0
Curtailment gain 0.0 0.0 0.0 0.0
Net expense (income) (13.2) (12.7) (26.5) (25.4)
Postemployment Benefit Plans [Member]        
Components of Net Periodic Benefit Cost [Abstract]        
Service cost 1.7 1.9 3.5 3.7
Interest cost 1.0 1.0 2.0 2.0
Expected return on plan assets 0.0 0.0 0.0 0.0
Amortization of losses (gains) 0.2 (0.1) 0.3 (0.1)
Amortization of prior service costs (credits) (0.2) 0.2 (0.5) 0.3
Other adjustments 2.5 2.6 5.1 5.2
Curtailment gain 0.0 0.0 0.0 0.0
Net expense (income) $ 5.2 $ 5.6 $ 10.4 $ 11.1