PENSION PLANS - Change in Level 3 Assets Measured at Fair Value on a Recurring Basis (Details) $ in Millions	12 Months Ended
	Dec. 30, 2016 USD ($)
Defined Benefit Plan Disclosure [Line Items]
Beginning balance	$ 446.2
Ending balance	412.7
Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Beginning balance	58.9
Net purchases, issuances and settlements	(58.9)
Ending balance	0.0
Insurance Funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Ending balance	16.0
Insurance Funds [Member] | Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Beginning balance	58.9
Net purchases, issuances and settlements	(58.9)
Ending balance	$ 0.0