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Significant Accounting Policies (Details)
 12 Months Ended
Aug. 16, 2017
Dec. 30, 2017
USD ($)
Dec. 31, 2016
USD ($)
Dec. 26, 2015
USD ($)
Fiscal year duration   365 days 372 days 365 days
Outstanding checks in excess of funds on deposit classified as accounts payable   $ 83,600,000 $ 98,500,000  
Direct shipping and handling costs   92,600,000 84,100,000 $ 78,700,000
Advertising and promotional costs   15,700,000 18,400,000 $ 19,200,000
Amount of deferred direct marketing expenses included in other current assets   $ 4,000,000 $ 3,500,000  
Percentage ownership of subsidiaries included in consolidated tax return   80.00% 80.00% 80.00%
Goodwill impairment loss   $ 0 $ 0 $ 0
Total distribution network costs   83,200,000 79,400,000 70,400,000
Income taxes   $ (362,506,000) $ (217,958,000) $ (211,391,000)
Common Stock [Member]        
Stock split, conversion ratio 2      
Stock split, description   On August 16, 2017, we announced that our Board of Directors approved a two-for-one stock split of our common stock. Each Henry Schein, Inc. stockholder of record at the close of business on September 1, 2017 received a distribution of one additional share for every share held. Trading began on a split-adjusted basis on September 15, 2017. The effects of the stock split on share and per share amounts have been retroactively reflected for all periods presented in this Form 10-K.    
Accounting Standards Update 2016-09 [Member]        
Income taxes   $ (19,600,000)    
Minimum [Member]        
Fiscal year duration   365 days    
Maximum [Member]        
Fiscal year duration   372 days