EMPLOYEE BENEFIT PLANS (Details) £ in Millions, $ in Millions		3 Months Ended					9 Months Ended
	Jul. 14, 2015 USD ($)	Sep. 26, 2015 USD ($)	Dec. 31, 2014 USD ($) retiree	Dec. 31, 2014 GBP (£) retiree	Sep. 27, 2014 USD ($)	Mar. 29, 2014 USD ($) employee	Sep. 26, 2015 USD ($)	Sep. 27, 2014 USD ($)
Domestic Pension Plans
Employee Benefit Plans
Number of eligible former employees intended to be offered with voluntary single lump-sum payment option in lieu of a future pension benefit | employee						7,100
Percentage of projected benefit obligation of the Plan settled as a result of lump-sum payments						38.00%
Projected benefit obligation of the Plan settled as a result of lump-sum payments						$ 165.2
Charge reflected in net periodic pension benefit expense		$ 0.0			$ (0.1)	4.6	$ 0.0	$ 0.4
Recognized net actuarial loss						$ (14.8)
Net curtailment gain	$ 5.1
Recognized net actuarial loss		11.4			0.0		11.4	14.8
Foreign Pension Plans
Employee Benefit Plans
Number of retirees assumed by third party for future pension payments | retiree			900	900
Amount paid for obligations assumed by third party			$ 123.3	£ 79.2
Obligations assumed by third party			105.8	£ 68.0
Settlement gain (loss) resulting from partial annuitization			$ 15.0
Recognized net actuarial loss		$ 0.7			$ 0.0		$ 0.7	$ 0.0