Goodwill and Intangible Assets (Summary Of Intangible Assets, Net) (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2016	Dec. 31, 2015
Finite-Lived Intangible Assets [Line Items]
Original Cost	$ 1,341.3	$ 803.4
Accumulated Amortization	(535.9)	(436.2)
Accumulated Impairment Losses	(43.3)	(41.4)
Carrying Value	762.1	325.8
Intellectual property [Member]
Finite-Lived Intangible Assets [Line Items]
Original Cost	13.9	13.9
Accumulated Amortization	(11.2)	(10.6)
Accumulated Impairment Losses	(0.4)	(0.4)
Carrying Value	2.3	2.9
Customer relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Original Cost	549.0	419.8
Accumulated Amortization	(283.3)	(239.6)
Accumulated Impairment Losses	(19.5)	(19.8)
Carrying Value	246.2	160.4
Patents [Member]
Finite-Lived Intangible Assets [Line Items]
Original Cost	43.7	43.7
Accumulated Amortization	(25.4)	(23.6)
Accumulated Impairment Losses	(13.7)	(13.7)
Carrying Value	4.6	6.4
Developed technology [Member]
Finite-Lived Intangible Assets [Line Items]
Original Cost	566.9	268.0
Accumulated Amortization	(201.6)	(152.2)
Accumulated Impairment Losses	(2.6)	(2.6)
Carrying Value	362.7	113.2
Trademarks [Member]
Finite-Lived Intangible Assets [Line Items]
Original Cost	17.2	16.3
Accumulated Amortization	(11.6)	(9.9)
Accumulated Impairment Losses	(1.1)	(1.1)
Carrying Value	4.5	5.3
Backlog [Member]
Finite-Lived Intangible Assets [Line Items]
Original Cost	3.3	0.3
Accumulated Amortization	(2.4)	(0.3)
Accumulated Impairment Losses	0.0	0.0
Carrying Value	0.9	0.0
Off-Market Favorable Lease [Member]
Finite-Lived Intangible Assets [Line Items]
Original Cost	1.5
Accumulated Amortization	(0.4)
Accumulated Impairment Losses	0.0
Carrying Value	1.1
In Process Research and Development [Member]
Finite-Lived Intangible Assets [Line Items]
Original Cost	145.8	41.4
Accumulated Amortization	0.0	0.0
Accumulated Impairment Losses	(6.0)	(3.8)
Carrying Value	$ 139.8	$ 37.6

Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275

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Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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The amount of impairment loss recognized in the period resulting from the write-down of the carrying amount of an intangible asset (excluding goodwill) to fair value.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 3
-Subparagraph (b)
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-Publisher FASB
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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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