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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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