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DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES (Statements Of Financial Performance Location Table) (Details) - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2015 | Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013
Derivative [Line Items] |  |  |  |
Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net |  | $ (6.5) | $ (28.2) | $ (51.7)
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net |  | (18.8) | (31.0) | (22.1)
Australian Dollar Foreign Exchange Contract Hedge Designation [Member] |  |  |  |
Derivative [Line Items] |  |  |  |
Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net |  | (2.0) | (13.9) | (34.7)
Australian Dollar Foreign Exchange Contract Hedge Designation [Member] | Product Revenues [Member] |  |  |  |
Derivative [Line Items] |  |  |  |
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net | $ 6.3 | (7.4) | (13.2) | (11.9)
Australian Dollar Foreign Exchange Contracts Hedge Prior to De Designation [Member] |  |  |  |
Derivative [Line Items] |  |  |  |
Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net |  | (4.5) | 0.0 | 0.0
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net |  | (11.3) | 0.0 | 0.0
Canadian Dollar Foreign Exchange Contracts Hedge Designation [Member] |  |  |  |
Derivative [Line Items] |  |  |  |
Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net |  | 0.0 | 0.0 | (12.9)
Canadian Dollar Foreign Exchange Contracts Hedge Designation [Member] | Cost of Sales [Member] |  |  |  |
Derivative [Line Items] |  |  |  |
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net |  | 0.0 |  | (8.2)
Canadian Dollar Foreign Exchange Contracts Hedge Prior to De Designation [Member] |  |  |  |
Derivative [Line Items] |  |  |  |
Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net |  | 0.0 | (14.3) | (4.1)
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net |  | 0.0 |  |
Canadian Dollar Foreign Exchange Contracts Hedge Prior to De Designation [Member] | Cost of Sales [Member] |  |  |  |
Derivative [Line Items] |  |  |  |
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net |  |  | (17.7) | (1.9)
Treasury Lock [Member] | Other Nonoperating Income (Expense) [Member] |  |  |  |
Derivative [Line Items] |  |  |  |
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net |  | $ (0.1) | (0.1) | (0.1)
Corporate [Member] | Canadian Dollar Foreign Exchange Contracts Hedge Prior to De Designation [Member] |  |  |  |
Derivative [Line Items] |  |  |  |
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net |  |  | $ (0.5) | $ (1.9)

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