Goodwill and Other Identifiable Intangible Assets - Changes in Carrying Amount of Goodwill by Segment (Detail) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Jun. 27, 2015	Dec. 31, 2015	Dec. 31, 2014
Goodwill [Roll Forward]
Beginning Balance		$ 4,741.9	$ 4,860.7
Acquisitions/ divestitures	$ 43.2	1,116.4	6.8
Goodwill, Impairment Loss		(515.2)
Foreign currency translation/other		(87.7)	(125.6)
Ending Balance		5,255.4	4,741.9
Valves And Controls [Member]
Goodwill [Roll Forward]
Beginning Balance		1,511.6	1,511.6
Acquisitions/ divestitures		0.0	0.0
Goodwill, Impairment Loss		(515.2)
Foreign currency translation/other		0.0	0.0
Ending Balance		996.4	1,511.6
Flow & Filtration Solutions [Member]
Goodwill [Roll Forward]
Beginning Balance		942.4	1,036.4
Acquisitions/ divestitures		0.0	0.0
Goodwill, Impairment Loss		0.0
Foreign currency translation/other		(59.7)	(94.0)
Ending Balance		882.7	942.4
Water Quality Systems [Member]
Goodwill [Roll Forward]
Beginning Balance		1,137.6	1,154.7
Acquisitions/ divestitures		0.0	6.8
Goodwill, Impairment Loss		0.0
Foreign currency translation/other		(16.5)	(23.9)
Ending Balance		1,121.1	1,137.6
Technical Solutions
Goodwill [Roll Forward]
Beginning Balance		1,150.3	1,158.0
Acquisitions/ divestitures		1,116.4	0.0
Goodwill, Impairment Loss		0.0
Foreign currency translation/other		(11.5)	(7.7)
Ending Balance		$ 2,255.2	$ 1,150.3