Stock-Based Compensation (Summary of Monte Carlo Simulation) (Details) - $ / shares	12 Months Ended
May 31, 2020	May 26, 2019	May 27, 2018
Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Line Items]
Dividend yield (percentage)	3.00%	3.20%	3.00%
Expected volatility of stock (percentage)	22.50%	22.60%	23.50%
Risk-free interest rate (percentage)	1.90%	2.90%	2.00%
Expected option life (in years)	6 years 3 months 18 days	6 years 4 months 24 days	6 years 4 months 24 days
Weighted-average exercise price per share (in dollars per share)	$ 124.24	$ 107.05	$ 85.83
Equity-settled performance-based restricted stock units
Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Line Items]
Dividend yield (percentage)	0.00%	0.00%	0.00%
Expected volatility of stock (percentage)	23.10%	23.40%	21.50%
Risk-free interest rate (percentage)	1.80%	2.70%	1.50%
Expected option life (in years)	2 years 10 months 24 days	2 years 10 months 24 days	2 years 10 months 24 days
Weighted-average exercise price per share (in dollars per share)	$ 98.16	$ 100.72	$ 90.51

The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term.

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- Definition

The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period.

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- Definition

The risk-free interest rate assumption that is used in valuing an option on its own shares.

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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.

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No definition available.

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- Definition

Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options.

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No definition available.

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- Definition

Expected term of award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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