Stock Plans (Schedule of information on restricted stock unit and cash-settled share-based units activity) (Details) - 2017 Stock Compensation Plan [Member] - $ / shares	12 Months Ended
May 31, 2020	May 26, 2019	May 27, 2018
Share Settled Units (Thousands) [Abstract]
Granted	1,947,600	1,848,200	1,551,300
Weighted Average Grant-Date Fair Value [Abstract]
Granted	$ 53.28	$ 46.14	$ 55.12
Equity Classified [Member]
Share Settled Units (Thousands) [Abstract]
Non-vested Beginning Balance	4,272,300
Granted	1,913,400
Vested	(1,039,700)
Forfeited, expired, or reclassified	(220,500)
Non-vested Ending Balance	4,925,500	4,272,300
Weighted Average Grant-Date Fair Value [Abstract]
Non-vested Beginning Balance	$ 53.87
Granted	53.27
Vested	55.81
Forfeited, expired, or reclassified	53.00
Non-vested Ending Balance	$ 53.26	$ 53.87
Liability Classified Share Settled [Member]
Share Settled Units (Thousands) [Abstract]
Non-vested Beginning Balance	108,100
Granted	34,200
Vested	(29,500)
Forfeited, expired, or reclassified	(9,500)
Non-vested Ending Balance	103,300	108,100
Weighted Average Grant-Date Fair Value [Abstract]
Non-vested Beginning Balance	$ 55.45
Granted	53.64
Vested	56.38
Forfeited, expired, or reclassified	53.73
Non-vested Ending Balance	$ 54.75	$ 55.45

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

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)(1)(iv)(3)
-URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901

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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)
-URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901

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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).

+ 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)(1)
-URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901

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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

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
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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.

+ 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)(i)-(ii)
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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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Per share or unit weighted-average fair value of nonvested award under share-based payment arrangement. Excludes share and unit options.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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-Paragraph 2
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The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
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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.

+ References

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-Publisher FASB
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