Segment Information - Financial Information by Reportable Segment (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 29, 2013	Jun. 30, 2012	Jun. 29, 2013	Jun. 30, 2012
Segment Reporting Information [Line Items]
Net sales	$ 1,963.7	$ 941.5	$ 3,738.2	$ 1,799.7
Operating income (loss)	225.9	119.3	300.2	205.8
Water & Fluid Solutions
Segment Reporting Information [Line Items]
Net sales	949.8	675.4	1,731.8	1,262.5
Operating income (loss)	136.1	92.0	210.9	155.7
Valves & Controls
Segment Reporting Information [Line Items]
Net sales	619.9	0	1,205.7	0
Operating income (loss)	56.9	0	38.3	0
Technical Solutions
Segment Reporting Information [Line Items]
Net sales	397.4	267.5	807.4	540.1
Operating income (loss)	65.1	50.6	118.4	101.1
Other
Segment Reporting Information [Line Items]
Net sales	(3.4)	(1.4)	(6.7)	(2.9)
Operating income (loss)	$ (32.2)	$ (23.3)	$ (67.4)	$ (51.0)