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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 27, 2018	Feb. 25, 2018	Nov. 26, 2017	Aug. 27, 2017	May 28, 2017	Feb. 26, 2017	Nov. 27, 2016	Aug. 28, 2016	May 27, 2018	May 28, 2017	May 29, 2016
Earnings from continuing operations before income taxes:
Earnings from continuing operations before income taxes, U.S.									$ 602.7	$ 632.3	$ 450.6
Earnings from continuing operations before income taxes, Foreign									3.0	5.0	(0.9)
Earnings before income taxes	$ 216.8	$ 116.0	$ 113.4	$ 159.5	$ 158.7	$ 220.2	$ 107.0	$ 151.4	605.7	637.3	449.7
Income taxes, Current
Current, Federal									10.2	160.5	89.1
Current, State and local									8.9	22.2	2.7
Current, Foreign									1.8	1.3	1.9
Total current									20.9	184.0	93.7
Income taxes, Deferred
Total deferred									(20.6)	(22.9)	(10.8)
Income tax expense									1.9	154.8	90.0
U.S.
Income taxes, Deferred
Deferred, Federal									(25.1)	(24.1)	(2.4)
Deferred, State and local									6.1	(5.1)	(1.3)
Total deferred									$ (19.0)	$ (29.2)	$ (3.7)