Retirement Plans (Weighted-Average Assumptions Used) (Details)	12 Months Ended
May 29, 2016	May 31, 2015	May 25, 2014
Defined Benefit Plans
Defined Benefit Plan Disclosure [Line Items]
Weighted-average assumptions used to determine benefit obligations, discount rate (percentage)	4.18%	4.43%
Weighted-average assumptions used to determine net expense, discount rate (percentage)	4.43%	4.41%
Weighted-average assumptions used to determine net expense, expected long-term rate of return on plan assets (percentage)	6.50%	7.00%	8.00%
Weighted-average assumptions used to determine net expense, rate of future compensation increases (percentage)		3.86%
Postretirement Benefit Plan
Defined Benefit Plan Disclosure [Line Items]
Weighted-average assumptions used to determine benefit obligations, discount rate (percentage)	4.00%	4.22%
Weighted-average assumptions used to determine net expense, discount rate (percentage)	4.22%	4.26%

The interest rate used to adjust for the time value of money for the plan.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (k)(1)
-URI http://asc.fasb.org/extlink&oid=58740216&loc=d3e1928-114920

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- Definition

The interest rate used to adjust for the time value of money.

+ References

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- Definition

An assumption as to the rate of return on plan assets reflecting the average rate of earnings expected on the funds invested or to be invested to provide for the benefits included in the benefit obligation.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Expected Long-Term Rate of Return on Plan Assets
-URI http://asc.fasb.org/extlink&oid=6512046

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (k)(3)
-URI http://asc.fasb.org/extlink&oid=58740216&loc=d3e1928-114920

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- Definition

Expected rate of compensation increases (for pay-related plans).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (k)(2)
-URI http://asc.fasb.org/extlink&oid=58740216&loc=d3e1928-114920

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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