Stock Plans (Schedule of information on stock option activity) (Details) (USD $) In Millions, except Share data, unless otherwise specified	6 Months Ended
Nov. 25, 2012
Options (Thousands) [Abstract]
Beginning Balance, Outstanding	60,942,700
Granted	3,407,700
Exercised	(9,356,500)
Forfeited or expired	(54,800)
Ending Balance, Outstanding	54,939,100
Ending Balance, Exercisable	36,465,500
Weighted Average Exercise Price [Abstract]
Beginning Balance, Outstanding	$ 27.96
Granted	$ 38.15
Exercised	$ 23.13
Forfeited or expired	$ 34.89
Ending Balance, Outstanding	$ 29.41
Ending Balance, Exercisable	$ 26.69
Weighted Average Remaining Contractual Term [Abstract]
Ending Balance, Outstanding	5 years 0 months 15 days
Ending Balance, Exercisable	3 years 7 months 6 days
Aggregate Intrinsic Value [Abstract]
Ending Balance, Outstanding	$ 624.3
Ending Balance, Exercisable	$ 504.0

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Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of vested portions of options outstanding and currently exercisable.

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The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

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The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.

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Weighted average remaining contractual term for vested portions of options outstanding and currently exercisable or convertible, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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For presentations that combine terminations, the number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan or that expired.

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Net number of share options (or share units) granted during the period.

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The number of shares reserved for issuance under stock option agreements awarded under the plan that validly exist and are outstanding as of the balance sheet date, including vested options.

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