BASIS OF PRESENTATION (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jul. 01, 2017	Jun. 30, 2018	Jul. 01, 2017
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Net periodic benefit cost	$ 2.3	$ 2.0	$ 4.5	$ 4.0
Accounting Standards Update 2018-02
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Effect of adoption of new accounting principle			0.0
Retained Earnings | Accounting Standards Update 2018-02
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Effect of adoption of new accounting principle			$ 4.6
Other Expense | Accounting Standards Update 2017-07
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Net periodic benefit income		0.2		0.3
Net periodic benefit cost		$ 0.4		$ 0.7