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FAIR VALUE MEASUREMENTS Fair Value measurements (Hierarchy) (Details) - USD ($) $ in Millions | Jun. 29, 2019 | Dec. 29, 2018 | Jun. 30, 2018
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Fair Value, Inputs, Level 1 [Member] |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |
Investments | $ 17.3 | $ 15.7 | $ 16.9

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- Definition Fair value portion of investment securities, including, but not limited to, marketable securities, derivative financial instruments, and investments accounted for under the equity method. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=99377789&loc=d3e19207-110258 + Details
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