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Income Taxes (Summary Of Reconciliation Of The Beginning And Ending Amount Of Unrecognized Tax Benefits) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Components of Income Tax Expense (Benefit), Continuing Operations [Abstract]
Balance, beginning of year	$ 122.0	$ 140.6
Increases in unrecognized tax benefits as a result of Atwood acquisition	22.2	0.0
Increases in unrecognized tax benefits as a result of tax positions taken during the current year	5.4	7.6
Increases in unrecognized tax benefits as a result of tax positions taken during prior years	0.7	4.9
Settlements with taxing authorities	(10.2)	(27.6)
Lapse of applicable statutes of limitations	(0.4)	(0.2)
Decreases in unrecognized tax benefits as a result of tax positions taken during prior years	(0.2)	(0.5)
Impact of foreign currency exchange rates	8.1	(2.8)
Balance, end of year	$ 147.6	$ 122.0

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Unrecognized tax benefits foreign currency translation gain (loss) arising during period.

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Amount of unrecognized tax benefits.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 15A
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=84230637&loc=SL6600010-109319

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