ACQUISITION (Details 2) - USD ($) $ in Millions	Dec. 31, 2015	Oct. 05, 2015	Dec. 31, 2014	Dec. 31, 2013
Business Acquisition [Line Items]
Goodwill	$ 2,174.1		$ 747.1	$ 747.1
DCP Business
Business Acquisition [Line Items]
Total current assets		$ 921.7
Property, plant and equipment		3,090.8
Deferred taxes		76.8
Intangible assets		582.3
Other assets		426.5
Total assets acquired		5,098.1
Total current liabilities		357.6
Other liabilities		2.0
Total liabilities assumed		2,379.5
Net identifiable assets acquired		2,718.6
Goodwill		1,427.5
Fair value of net assets acquired		4,146.1
Long-term debt		517.9
Accrued pension liability		447.1
Deferred tax liability		$ 1,054.9