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Basis of Presentation (Details)		9 Months Ended
	Aug. 16, 2017	Sep. 29, 2018 shares	May 31, 2018 shares	Dec. 30, 2017 shares
Common Stock, Shares Authorized		480,000,000	480,000,000	240,000,000
Common Stock [Member]
Stock split, conversion ratio	2
Stock split, description		On August 16, 2017, we announced that our Board of Directors approved a 2-for-1 split of our common stock. Each Henry Schein, Inc. stockholder of record at the close of business on September 1, 2017 received a dividend of one additional share for every share held.  Trading began on a split-adjusted basis on September 15, 2017 and has been retroactively reflected for all periods presented in this Form 10-Q. As a result of the stock split, we increased our authorized common shares from 240,000,000 to 480,000,000, effective May 31, 2018.

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The maximum number of common shares permitted to be issued by an entity's charter and bylaws.

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Description of the stock split arrangement. Also provide the retroactive effect given by a stock split that occurs after the balance date but before the release of financial statements.

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Ratio applied to the conversion of stock split, for example but not limited to, one share converted to two or two shares converted to one.

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