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Income Taxes (Components Of Earnings Before Income Tax And Provision For Income Taxes) (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	May 26, 2019	Feb. 24, 2019	Nov. 25, 2018	Aug. 26, 2018	May 27, 2018	Feb. 25, 2018	Nov. 26, 2017	Aug. 27, 2017	May 26, 2019	May 27, 2018	May 28, 2017
Earnings from continuing operations before income taxes:
U.S.									$ 780.7	$ 602.7	$ 632.3
Foreign									1.6	3.0	5.0
Earnings before income taxes	$ 217.9	$ 253.1	$ 135.3	$ 176.0	$ 216.8	$ 116.0	$ 113.4	$ 159.5	782.3	605.7	637.3
Income taxes, Current
Federal									(7.2)	10.2	160.5
State and local									20.3	8.9	22.2
Foreign									1.4	1.8	1.3
Total current									14.5	20.9	184.0
Income taxes, Deferred
Total deferred									47.5	(20.6)	(22.9)
Income tax expense									63.7	1.9	154.8
U.S.
Income taxes, Deferred
Federal									44.9	(25.1)	(24.1)
State and local									4.3	6.1	(5.1)
Total deferred									$ 49.2	$ (19.0)	$ (29.2)