Retirement Plans (Funding Of Defined Benefit Pension Plans And Postretirement Benefit Plans) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
May 25, 2014	May 26, 2013	May 27, 2012
Defined Benefit Plans
Defined Benefit Plan Disclosure [Line Items]
Defined benefit pension plans and postretirement benefit plans funding	$ 0.4	$ 2.4	$ 22.2
Postretirement Benefit Plan
Defined Benefit Plan Disclosure [Line Items]
Defined benefit pension plans and postretirement benefit plans funding	$ 0.9	$ 0.8	$ 0.5

The increase in the fair value of plan assets from contributions made by the employer.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (b)(3)

-URI http://asc.fasb.org/extlink&oid=35743120&loc=d3e1928-114920

Name:	us-gaap_DefinedBenefitPlanContributionsByEmployer
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration