Stock Plans (Schedule of information on restricted stock unit and cash-settled share-based units activity) (Details) (USD $)	12 Months Ended
	May 25, 2014	May 26, 2013	May 27, 2012
Share Settled Units (Thousands) [Abstract]
Granted	2,144,100	2,404,900	2,785,700
Weighted Average Grant-Date Fair Value [Abstract]
Granted	$ 48.49	$ 38.41	$ 37.29
Restricted Stock Unit Equity Classified [Member]
Share Settled Units (Thousands) [Abstract]
Non-vested Beginning Balance	8,042,200
Granted	2,069,800
Vested	(2,004,800)
Forfeited, expired, or reclassified	(213,500)
Non-vested Ending Balance	7,893,700
Weighted Average Grant-Date Fair Value [Abstract]
Non-vested Beginning Balance	$ 35.89
Granted	$ 48.49
Vested	$ 29.76
Forfeited, expired, or reclassified	$ 40.83
Non-vested Ending Balance	$ 40.81
Restricted Stock Unit Liability Classified Share Settled [Member]
Share Settled Units (Thousands) [Abstract]
Non-vested Beginning Balance	388,200
Granted	74,300
Vested	(144,900)
Forfeited, expired, or reclassified	(68,100)
Non-vested Ending Balance	249,500
Weighted Average Grant-Date Fair Value [Abstract]
Non-vested Beginning Balance	$ 32.60
Granted	$ 48.39
Vested	$ 28.39
Forfeited, expired, or reclassified	$ 39.55
Non-vested Ending Balance	$ 25.67
Restricted Stock Unit Liability Classified Cash Settled [Member]
Share Settled Units (Thousands) [Abstract]
Non-vested Beginning Balance	2,287,800
Granted	0
Vested	(1,445,500)
Forfeited, expired, or reclassified	(19,500)
Non-vested Ending Balance	822,800
Weighted Average Grant-Date Fair Value [Abstract]
Non-vested Beginning Balance	$ 38.41
Granted	$ 0
Vested	$ 28.25
Forfeited, expired, or reclassified	$ 37.03
Non-vested Ending Balance	$ 36.52