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Segment Information (Reconciliation Of Operating Profit (Loss) From Segments To Consolidated) (Details) - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2016 | Sep. 30, 2016 | Jul. 01, 2016 | Apr. 01, 2016 | Dec. 31, 2015 | Oct. 02, 2015 | Jul. 03, 2015 | Apr. 03, 2015 | Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Gross profit for reportable segments |  |  |  |  |  |  |  |  | $ 1,391.8 | $ 1,209.0 | $ 1,118.3
Gross profit | $ 384.5 | $ 329.0 | $ 307.9 | $ 275.5 | $ 279.9 | $ 308.5 | $ 304.4 | $ 300.4 | 1,296.9 | 1,193.2 | 1,084.9
Operating Segments [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Gross profit for reportable segments |  |  |  |  |  |  |  |  | 1,391.8 | 1,209.0 | 1,118.3
Segment Reconciling Items [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Other unallocated manufacturing costs |  |  |  |  |  |  |  |  | $ (94.9) | $ (15.8) | $ (33.4)

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- Definition Aggregate revenue less cost of goods and services sold or operating expenses directly attributable to the revenue generation activity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1,2) -URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688 + Details
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