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Goodwill and Intangible Assets (Summary Of Goodwill by Operating Segment) (Details) - USD ($) $ in Millions	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Goodwill [Line Items]
Goodwill	$ 1,372.2	$ 718.1
Accumulated Impairment Losses	(447.5)	(447.5)
Carrying Value	924.7	270.6	$ 263.8
Application Products Group [Member]
Goodwill [Line Items]
Goodwill	836.7	546.7
Accumulated Impairment Losses	(418.9)	(418.9)
Carrying Value	417.8	127.8
Image Sensor Group [Member]
Goodwill [Line Items]
Goodwill	96.8	95.4
Accumulated Impairment Losses	0.0	0.0
Carrying Value	96.8	95.4
Standard Products Group [Member]
Goodwill [Line Items]
Goodwill	438.7	76.0
Accumulated Impairment Losses	(28.6)	(28.6)
Carrying Value	$ 410.1	$ 47.4

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- Definition

Goodwill Accumulated Amortization

+ References

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- Definition

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267

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-Name Accounting Standards Codification
-Topic 350
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-Section 45
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-Topic 350
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Amount before accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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