Stock-Based Compensation (Stock Option Activity) (Narrative) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
May 26, 2013	May 27, 2012	May 29, 2011
Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Line Items]
Total intrinsic value of options exercised	$ 47.1	$ 49.7	$ 49.9
Cash received from option exercises	57.0	62.9	55.7
Maximum terms of awards (years)	10 years
Vesting period (years)	4 years
Stock options
Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Line Items]
Unrecognized compensation cost related to unvested stock options granted	32.8
Unrecognized compensation cost, period of recognition, in years (years)	2 years 4 months 7 days
Fair market value on grant date	$ 19.6

Share-based Compensation Arrangement by Share-based Payment Award, Maximum Terms

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- Definition

Aggregate proceeds received by the entity during the annual period from exercises of stock or unit options and conversion of similar instruments granted under equity-based payment arrangements.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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- Definition

As of the balance sheet date, the aggregate unrecognized cost of equity-based awards made to employees under equity-based compensation awards that have yet to vest.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

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- Definition

Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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- Definition

The total fair value of equity-based awards for which the grantee gained the right during the reporting period, by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash in accordance with the terms of the arrangement.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

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- Definition

The total accumulated difference between fair values of underlying shares on dates of exercise and exercise price on options which were exercised (or share units converted) into shares during the reporting period under the plan.

+ References

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