Annual report pursuant to Section 13 and 15(d)

BENEFIT PLANS (Net Amounts Recognized, or Funded Status of Pension and Other Postretirement Benefit Plans) (Detail)

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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