Retirement And Postemployment Benefits (Components Of Net Periodic Benefit Expense(Income)) (Details) - USD ($) $ in Millions	3 Months Ended
	Aug. 25, 2024	Aug. 27, 2023
Defined Benefit Pension Plans [Member]
Components of Net Periodic Benefit Cost [Abstract]
Service cost	$ 13.0	$ 14.2
Interest cost	76.7	74.2
Expected return on plan assets	(105.0)	(102.9)
Amortization of losses (gains)	25.1	21.5
Amortization of prior service costs (credits)	0.3	0.4
Other adjustments	0.0	0.0
Net expense (income)	10.1	7.4
Other Postretirement Benefit Plans [Member]
Components of Net Periodic Benefit Cost [Abstract]
Service cost	1.1	1.2
Interest cost	5.3	5.3
Expected return on plan assets	(9.0)	(8.7)
Amortization of losses (gains)	(5.2)	(5.1)
Amortization of prior service costs (credits)	(5.5)	(5.4)
Other adjustments	0.0	0.0
Net expense (income)	(13.3)	(12.7)
Postemployment Benefit Plans [Member]
Components of Net Periodic Benefit Cost [Abstract]
Service cost	1.8	1.8
Interest cost	1.0	1.0
Expected return on plan assets	0.0	0.0
Amortization of losses (gains)	0.1	0.0
Amortization of prior service costs (credits)	(0.3)	0.1
Other adjustments	2.6	2.6
Net expense (income)	$ 5.2	$ 5.5