Segment Information - Financial Information by Reportable Segment (Detail) - Entity [Domain] - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 27, 2015	Jun. 28, 2014	Jun. 27, 2015	Jun. 28, 2014
Segment Reporting Information [Line Items]
Net sales	$ 1,661.2	$ 1,834.1	$ 3,136.2	$ 3,478.1
Segment Income (Loss)	244.9	279.3	416.1	479.9
Valves & Controls
Segment Reporting Information [Line Items]
Net sales	496.4	628.6	925.6	1,159.6
Segment Income (Loss)	51.1	87.7	93.1	148.6
Flow & Filtration Solutions [Member]
Segment Reporting Information [Line Items]
Net sales	374.6	424.5	724.7	825.6
Segment Income (Loss)	49.7	54.0	78.8	88.7
Water Quality Systems [Member]
Segment Reporting Information [Line Items]
Net sales	387.7	377.9	694.6	681.9
Segment Income (Loss)	85.7	82.0	135.0	129.7
Technical Solutions
Segment Reporting Information [Line Items]
Net sales	407.1	408.6	802.9	823.9
Segment Income (Loss)	80.8	76.6	153.5	155.6
Other
Segment Reporting Information [Line Items]
Net sales	(4.6)	(5.5)	(11.6)	(12.9)
Segment Income (Loss)	$ (22.4)	$ (21.0)	$ (44.3)	$ (42.7)