Goodwill And Intangible Assets (Components Of Intangible Assets) (Details) - USD ($) $ in Millions	Dec. 31, 2018	Dec. 31, 2017
Acquired Finite-Lived Intangible Assets [Line Items]
Intangible assets, gross carrying amount	$ 1,835.7	$ 1,820.7
Intangible assets, accumulated amortization	659.0	486.9
Acquired technology
Acquired Finite-Lived Intangible Assets [Line Items]
Intangible assets, gross carrying amount	246.7	240.0
Intangible assets, accumulated amortization	49.3	25.0
Backlog
Acquired Finite-Lived Intangible Assets [Line Items]
Intangible assets, gross carrying amount	175.0	175.0
Intangible assets, accumulated amortization	175.0	118.0
Customer relationships
Acquired Finite-Lived Intangible Assets [Line Items]
Intangible assets, gross carrying amount	285.0	285.0
Intangible assets, accumulated amortization	57.4	29.0
Licenses, patents and trademarks
Acquired Finite-Lived Intangible Assets [Line Items]
Intangible assets, gross carrying amount	812.6	810.1
Intangible assets, accumulated amortization	194.8	157.7
Software
Acquired Finite-Lived Intangible Assets [Line Items]
Intangible assets, gross carrying amount	232.1	237.9
Intangible assets, accumulated amortization	159.1	145.5
Other
Acquired Finite-Lived Intangible Assets [Line Items]
Intangible assets, gross carrying amount	84.3	72.7
Intangible assets, accumulated amortization	$ 23.4	$ 11.7