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Segment Information (Segment Information Of Revenues, Gross Profit And Operating Income) (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] |  |  |  |  |  |  |  |  |  |  |
Revenues from external customers | $ 1,261.0 | $ 950.9 | $ 877.8 | $ 817.2 | $ 840.3 | $ 904.2 | $ 880.5 | $ 870.8 | $ 3,906.9 | $ 3,495.8 | $ 3,161.8
Segment gross profit |  |  |  |  |  |  |  |  | 1,391.8 | 1,209.0 | 1,118.3
Power Solutions Group [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenues from external customers |  |  |  |  |  |  |  |  | 1,708.6 | 1,409.9 | 1,423.5
Segment gross profit |  |  |  |  |  |  |  |  | 566.3 | 428.7 | 446.8
Analog Solutions Group [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenues from external customers |  |  |  |  |  |  |  |  | 1,481.5 | 1,338.6 | 1,415.8
Segment gross profit |  |  |  |  |  |  |  |  | 589.0 | 537.9 | 574.5
Image Sensor Group [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenues from external customers |  |  |  |  |  |  |  |  | 716.8 | 747.3 | 322.5
Segment gross profit |  |  |  |  |  |  |  |  | $ 236.5 | $ 242.4 | $ 97.0

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- Definition Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss). + 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) -URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688 + Details
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