BUSINESS SEGMENTS - Segment Information (Detail) - USD ($) $ in Millions	3 Months Ended
	Apr. 01, 2016	Apr. 03, 2015
Segment Reporting Information [Line Items]
Net sales	$ 1,816.2	$ 1,385.1
Operating income	60.3	59.3
Network and Security Solutions [Member]
Segment Reporting Information [Line Items]
Net sales	949.1	928.0
Operating income	58.8	55.7
Electrical and Electronic Solutions [Member]
Segment Reporting Information [Line Items]
Net sales	506.0	440.8
Operating income	22.5	35.8
Utility Power Solutions [Member]
Segment Reporting Information [Line Items]
Net sales	361.1	16.3
Operating income	14.3	2.0
Corporate [Member]
Segment Reporting Information [Line Items]
Net sales	0.0	0.0
Operating income	(35.3)	(34.2)
Continuing Operations [Member]
Segment Reporting Information [Line Items]
Net sales	1,816.2	1,385.1
Operating income	$ 60.3	$ 59.3