Stock Plans (Schedule of information on restricted stock and performance award unit activity) (Details) - USD ($) $ / shares in Units, $ in Millions	9 Months Ended
Feb. 24, 2019	Feb. 25, 2018
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other Than Options, Additional Disclosures [Abstract]
Total grant-date fair value	$ 42.4	$ 89.7
Equity Classified Share-Settled [Member]
Settled Units [Abstract]
Beginning Balance (Non-vested)	3,731,800
Granted	1,816,200
Vested	(797,300)
Forfeited	(355,900)
Ending Balance (Non-vested)	4,394,800
Weighted Average Grant Date Fair Value [Abstract]
Beginning Balance (Non-vested)	$ 57.5
Granted	46.09
Vested	50.85
Forfeited	58.14
Ending Balance (Non-vested)	$ 53.94
Liability Classified Share-Settled [Member]
Settled Units [Abstract]
Beginning Balance (Non-vested)	121,300
Granted	35,200
Vested	(34,200)
Forfeited	(11,800)
Ending Balance (Non-vested)	110,500
Weighted Average Grant Date Fair Value [Abstract]
Beginning Balance (Non-vested)	$ 58.26
Granted	46.11
Vested	55.29
Forfeited	57.64
Ending Balance (Non-vested)	$ 55.38

No definition available.

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The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(iv)(3)
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- Definition

Weighted average fair value as of the grant date of equity-based award plans other than stock (unit) option plans that were not exercised or put into effect as a result of the occurrence of a terminating event.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(2)(iii)(3)
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The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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-Publisher FASB
-Name Accounting Standards Codification
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- Definition

The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

+ References

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-Publisher FASB
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- Definition

The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

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-Publisher FASB
-Name Accounting Standards Codification
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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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The weighted average fair value of nonvested awards on equity-based plans excluding option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, revenue or profit achievement stock award plan) for which the employer is contingently obligated to issue equity instruments or transfer assets to an employee who has not yet satisfied service or performance criteria necessary to gain title to proceeds from the sale of the award or underlying shares or units.

+ References

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-Publisher FASB
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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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No definition available.

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The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.

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-Name Accounting Standards Codification
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- Definition

Fair value of share-based awards for which the grantee gained the right by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
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-Section 50
-Paragraph 2
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- Definition

The weighted average fair value as of grant date pertaining to an equity-based award plan other than a stock (or unit) option plan 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.

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