Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Millions	May 26, 2019	May 27, 2018
Statement of Financial Position [Abstract]
Allowance for doubtful accounts	$ 3.3	$ 1.7
Common stock, par value (in dollars per share)	$ 5	$ 5
Common stock authorized (shares)	1,200,000,000	1,200,000,000
Common stock issued (shares)	584,219,229	584,219,229
Treasury stock, common shares (shares)	98,133,747	177,078,193

Amount of allowance for credit loss on accounts receivable, classified as current.

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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
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Face amount or stated value per share of common stock.

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Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury.

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Number of common and preferred shares that were previously issued and that were repurchased by the issuing entity and held in treasury on the financial statement date. This stock has no voting rights and receives no dividends.

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