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Revenue from Contracts with Customers - Disaggregation of Revenue (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 29, 2018 | Sep. 29, 2018
Disaggregation of Revenue [Abstract] |  |
Net sales | $ 3,279,678 | $ 9,826,793
North America [Member] |  |
Disaggregation of Revenue [Abstract] |  |
Net sales | 2,238,831 | 6,480,105
International [Member] |  |
Disaggregation of Revenue [Abstract] |  |
Net sales | 1,040,847 | 3,346,688
Healthcare Distribution [Member] |  |
Disaggregation of Revenue [Abstract] |  |
Net sales | 3,135,775 | 9,456,610
Healthcare Distribution [Member] | North America [Member] |  |
Disaggregation of Revenue [Abstract] |  |
Net sales | 2,115,008 | 6,172,279
Healthcare Distribution [Member] | International [Member] |  |
Disaggregation of Revenue [Abstract] |  |
Net sales | 1,020,767 | 3,284,331
Healthcare Distribution [Member] | Dental [Member] |  |
Disaggregation of Revenue [Abstract] |  |
Net sales | 1,514,538 | 4,675,212
Healthcare Distribution [Member] | Dental [Member] | North America [Member] |  |
Disaggregation of Revenue [Abstract] |  |
Net sales | 951,412 | 2,831,062
Healthcare Distribution [Member] | Dental [Member] | International [Member] |  |
Disaggregation of Revenue [Abstract] |  |
Net sales | 563,126 | 1,844,150
Healthcare Distribution [Member] | Animal Health [Member] |  |
Disaggregation of Revenue [Abstract] |  |
Net sales | 899,295 | 2,805,031
Healthcare Distribution [Member] | Animal Health [Member] | North America [Member] |  |
Disaggregation of Revenue [Abstract] |  |
Net sales | 460,838 | 1,425,273
Healthcare Distribution [Member] | Animal Health [Member] | International [Member] |  |
Disaggregation of Revenue [Abstract] |  |
Net sales | 438,457 | 1,379,758
Healthcare Distribution [Member] | Medical [Member] |  |
Disaggregation of Revenue [Abstract] |  |
Net sales | 721,942 | 1,976,367
Healthcare Distribution [Member] | Medical [Member] | North America [Member] |  |
Disaggregation of Revenue [Abstract] |  |
Net sales | 702,758 | 1,915,944
Healthcare Distribution [Member] | Medical [Member] | International [Member] |  |
Disaggregation of Revenue [Abstract] |  |
Net sales | 19,184 | 60,423
Technology and Value-Added Services [Member] |  |
Disaggregation of Revenue [Abstract] |  |
Net sales | 143,903 | 370,183
Technology and Value-Added Services [Member] | North America [Member] |  |
Disaggregation of Revenue [Abstract] |  |
Net sales | 123,823 | 307,826
Technology and Value-Added Services [Member] | International [Member] |  |
Disaggregation of Revenue [Abstract] |  |
Net sales | $ 20,080 | $ 62,357

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- Definition Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130543-203045 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130539-203045 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130545-203045 + Details
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