SHAREHOLDERS' EQUITY AND STOCK-BASED COMPENSATION (Details 5) (USD $) In Millions, unless otherwise specified	3 Months Ended			12 Months Ended
	Mar. 29, 2014	Mar. 28, 2015	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2014
Components of Accumulated Other Comprehensive income (loss)
Balance at end of period		$ (68.0)	$ 62.6		$ 62.6
Pension and postretirement liability adjustment and other, tax (provision) benefit	(2.3)
Accumulated Other Comprehensive Income
Components of Accumulated Other Comprehensive income (loss)
Balance at beginning of year	287.5	62.6			287.5
Other comprehensive income (loss) before reclassifications	1.2	(131.0)
Amounts reclassified from accumulated other comprehensive income	4.8	0.4
Other comprehensive income (loss), net	6.0	(130.6)
Balance at end of period	293.5	(68.0)
Foreign Currency Translation Adjustment
Components of Accumulated Other Comprehensive income (loss)
Balance at beginning of year	296.8	59.0			296.8
Other comprehensive income (loss) before reclassifications	(2.0)	(131.1)
Other comprehensive income (loss), net	(2.0)	(131.1)
Balance at end of period	294.8	(72.1)
Net Unrealized Losses on Qualifying Cash Flow Hedges
Components of Accumulated Other Comprehensive income (loss)
Balance at beginning of year	(0.8)	(1.3)			(0.8)
Other comprehensive income (loss) before reclassifications	(0.8)	0.1
Amounts reclassified from accumulated other comprehensive income	0.1	0.6
Other comprehensive income (loss), net	(0.7)	0.7
Balance at end of period	(1.5)	(0.6)	(1.3)	(0.8)	(1.3)
Net unrealized gain (loss) on qualifying cash flow hedges, tax benefit (provision)	1.2	0.5	1.1	1.0
Net Unrealized Losses on Available-for-Sale Securities
Components of Accumulated Other Comprehensive income (loss)
Balance at beginning of year	(3.7)				(3.7)
Other comprehensive income (loss) before reclassifications	3.8
Amounts reclassified from accumulated other comprehensive income	(0.3)
Other comprehensive income (loss), net	3.5
Balance at end of period	(0.2)
Pension and Postretirement Liability Adjustment
Components of Accumulated Other Comprehensive income (loss)
Balance at beginning of year	(4.8)	4.9			(4.8)
Other comprehensive income (loss) before reclassifications	0.2
Amounts reclassified from accumulated other comprehensive income	5.0	(0.2)
Other comprehensive income (loss), net	5.2	(0.2)
Balance at end of period	0.4	4.7	4.9	(4.8)	4.9
Pension and postretirement liability adjustment and other, tax (provision) benefit	(0.1)	(3.0)		2.2	(3.0)
Pension and Postretirement Liability Adjustment | EGS Electrical Group, LLC and Subsidiaries ("EGS")
Components of Accumulated Other Comprehensive income (loss)
Pension and postretirement liability adjustment and other, tax (provision) benefit				$ (5.0)