Summary Of Significant Accounting Policies (Basic And Diluted Earnings Per Common Share) (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended								12 Months Ended
	May 28, 2017	Feb. 26, 2017	Nov. 27, 2016	Aug. 28, 2016	May 29, 2016	Feb. 28, 2016	Nov. 29, 2015	Aug. 30, 2015	May 28, 2017	May 29, 2016	May 31, 2015
Accounting Policies [Abstract]
Earnings from continuing operations	$ 125.4	$ 166.3	$ 79.7	$ 111.1	$ 140.4	$ 108.2	$ 30.1	$ 81.0	$ 482.5	$ 359.7	$ 196.4
Earnings (loss) from discontinued operations	(1.6)	(0.7)	(0.2)	(0.9)	(0.8)	(2.4)	13.1	5.4	(3.4)	15.3	513.1
Net earnings	$ 123.8	$ 165.6	$ 79.5	$ 110.2	$ 139.6	$ 105.8	$ 43.2	$ 86.4	$ 479.1	$ 375.0	$ 709.5
Average common shares outstanding - Basic (shares)									124.3	127.4	127.7
Effect of dilutive stock-based compensation (shares)									1.7	1.9	2.0
Average common shares outstanding - Diluted (shares)									126.0	129.3	129.7
Basic net earnings per share:
Earnings from continuing operations, basic (in dollars per share)	$ 1.00	$ 1.34	$ 0.65	$ 0.89	$ 1.11	$ 0.85	$ 0.23	$ 0.64	$ 3.88	$ 2.82	$ 1.54
Earnings (loss) from discontinued operations, basic (in dollars per share)	(0.01)	(0.01)	0.00	(0.01)	(0.01)	(0.02)	0.11	0.04	(0.03)	0.12	4.02
Net (loss) earnings, basic (in dollars per share)	0.99	1.33	0.65	0.88	1.10	0.83	0.34	0.68	3.85	2.94	5.56
Diluted net earnings per share:
Earnings from continuing operations, diluted (in dollars per share)	0.99	1.32	0.64	0.88	1.10	0.84	0.23	0.63	3.83	2.78	1.51
Earnings (loss) from discontinued operations, diluted (in dollars per share)	(0.01)	0.00	0.00	(0.01)	(0.01)	(0.02)	0.10	0.04	(0.03)	0.12	3.96
Net (loss) earnings, diluted (in dollars per share)	$ 0.98	$ 1.32	$ 0.64	$ 0.87	$ 1.09	$ 0.82	$ 0.33	$ 0.67	$ 3.80	$ 2.90	$ 5.47