Goodwill and Other Identifiable Intangible Assets - Changes in Carrying Amount of Goodwill by Segment (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013
Goodwill [Roll Forward]
Beginning Balance	$ 4,860.7us-gaap_Goodwill	$ 4,837.5us-gaap_Goodwill
Acquisitions/ divestitures	6.8us-gaap_GoodwillAcquiredDuringPeriod	(3.4)us-gaap_GoodwillAcquiredDuringPeriod
Foreign currency translation/other	(125.6)us-gaap_GoodwillOtherChanges	26.6us-gaap_GoodwillOtherChanges
Ending Balance	4,741.9us-gaap_Goodwill	4,860.7us-gaap_Goodwill
Valves & Controls
Goodwill [Roll Forward]
Beginning Balance	1,511.6	1,511.6
Acquisitions/ divestitures	0	0
Foreign currency translation/other	0	0
Ending Balance	1,511.6	1,511.6
Flow & Filtration Solutions [Member]
Goodwill [Roll Forward]
Beginning Balance	1,036.4	1,019.6
Acquisitions/ divestitures	0	(5.7)
Foreign currency translation/other	(94.0)	22.5
Ending Balance	942.4	1,036.4
Water Quality Systems [Member]
Goodwill [Roll Forward]
Beginning Balance	1,154.7	1,144.6
Acquisitions/ divestitures	6.8	7.6
Foreign currency translation/other	(23.9)	2.5
Ending Balance	1,137.6	1,154.7
Technical Solutions
Goodwill [Roll Forward]
Beginning Balance	1,158.0	1,161.7
Acquisitions/ divestitures	0	(5.3)
Foreign currency translation/other	(7.7)	1.6
Ending Balance	$ 1,150.3	$ 1,158.0

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.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 20

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267

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+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

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+ References

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