Stock Plans (Schedule of information on stock option activity) (Details) - $ / shares	12 Months Ended
	May 29, 2016	May 31, 2015	May 25, 2014
Options (Thousands) [Abstract]
Balance Outstanding Beginning Balance	39,077,200	44,169,000	47,672,100
Granted	1,930,200	2,253,100	2,789,800
Exercised	(8,471,000)	(7,297,200)	(6,181,300)
Forfeited or expired	(134,800)	(47,700)	(111,600)
Balance Outstanding Ending Balance	32,401,600	39,077,200	44,169,000
Balance Exercisable Beginning Balance	26,991,500	29,452,800	29,290,300
Balance Exercisable Ending Balance	22,385,100	26,991,500	29,452,800
Weighted Average Exercise Price [Abstract]
Balance Outstanding Beginning Balance	$ 34.35	$ 32.1	$ 30.22
Granted	55.72	53.7	48.33
Exercised	28.49	26.68	24.78
Forfeited or expired	48.16	43.73	38.74
Balance Outstanding Ending Balance	37.09	34.35	32.1
Balance Exercisable Beginning Balance	30.44	28.37	27.69
Balance Exercisable Ending Balance	$ 32.38	$ 30.44	$ 28.37