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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

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- Definition Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References 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 + Details
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- Definition Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References 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 + Details
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