Retirement And Postemployment Benefits (Components Of Net Periodic Benefit Expense(Income)) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Nov. 26, 2023	Nov. 27, 2022	Nov. 26, 2023	Nov. 27, 2022
Defined Benefit Pension Plans [Member]
Components of Net Periodic Benefit Cost [Abstract]
Service cost	$ 14.4	$ 17.5	$ 28.6	$ 35.1
Interest cost	74.1	64.6	148.3	129.2
Expected return on plan assets	(106.0)	(105.0)	(208.9)	(210.0)
Amortization of losses (gains)	21.5	28.4	43.0	56.7
Amortization of prior service costs (credits)	0.5	0.3	0.9	0.7
Other adjustments	0.0	0.0	0.0	0.0
Settlement or curtailment (gains) losses	(3.4)	0.0	(3.4)	0.0
Net expense (income)	1.1	5.8	8.5	11.7
Other Postretirement Benefit Plans [Member]
Components of Net Periodic Benefit Cost [Abstract]
Service cost	1.2	1.2	2.4	2.6
Interest cost	5.4	4.5	10.7	9.0
Expected return on plan assets	(8.7)	(7.8)	(17.4)	(15.6)
Amortization of losses (gains)	(5.1)	(4.8)	(10.2)	(9.7)
Amortization of prior service costs (credits)	(5.5)	(5.7)	(10.9)	(11.5)
Other adjustments	0.0	0.0	0.0	0.0
Settlement or curtailment (gains) losses	0.0	0.0	0.0	0.0
Net expense (income)	(12.7)	(12.6)	(25.4)	(25.2)
Postemployment Benefit Plans [Member]
Components of Net Periodic Benefit Cost [Abstract]
Service cost	1.9	2.1	3.7	4.2
Interest cost	1.0	0.8	2.0	1.6
Expected return on plan assets	0.0	0.0	0.0	0.0
Amortization of losses (gains)	(0.1)	0.0	(0.1)	0.1
Amortization of prior service costs (credits)	0.2	0.1	0.3	0.2
Other adjustments	2.6	2.9	5.2	5.9
Settlement or curtailment (gains) losses	0.0	0.0	0.0	0.0
Net expense (income)	$ 5.6	$ 5.9	$ 11.1	$ 12.0