BENEFIT PLANS (Net Amounts Recognized, or Funded Status of Pension and Other Postretirement Benefit Plans) (Detail) - USD ($) $ in Millions	Dec. 31, 2015	Dec. 31, 2014
Amounts recognized in the statements of financial position consist of:
Long-term liabilities	$ (146.4)	$ (173.0)
Pension Benefits
Amounts recognized in the statements of financial position consist of:
Noncurrent assets	0.0	0.0
Current liabilities	(4.2)	(4.0)
Long-term liabilities	(139.6)	(165.0)
Net amount recognized	(143.8)	(169.0)
Other Benefits
Amounts recognized in the statements of financial position consist of:
Noncurrent assets	1.5	4.2
Current liabilities	(0.2)	(0.2)
Long-term liabilities	(2.0)	(2.6)
Net amount recognized	$ (0.7)	$ 1.4