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DERIVATIVE INSTRUMENTS (Tables) | 3 Months Ended
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Mar. 31, 2018
Derivative Instruments and Hedging Activities Disclosure [Abstract] |
Schedule Of Derivative Instruments In Statement Of Financial Position, Fair Value | The following table presents the fair value of our derivative instruments and the classification of each in the Statements of Unaudited Condensed Consolidated Financial Position:
|  | (In Millions)
|  | Derivative Assets |  | Derivative Liabilities
|  | March 31, 2018 |  | December 31, 2017 |  | March 31, 2018 |  | December 31, 2017
Derivative Instrument |  | Balance Sheet Location |  | Fair Value |  | Balance Sheet Location |  | Fair Value |  | Balance Sheet Location |  | Fair Value |  | Balance Sheet Location |  | Fair Value
Derivatives designated as hedging instruments under ASC 815: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commodity Contracts |  |  |  | $ | — |  |  |  |  | $ | — |  |  | Other current liabilities |  | $ | 0.2 |  |  | Other current liabilities |  | $ | 0.3 |
Derivatives not designated as hedging instruments under ASC 815: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Customer supply agreements |  | Derivative assets |  | $ | 91.2 |  |  | Derivative assets |  | $ | 37.9 |  |  |  |  | $ | — |  |  |  |  | $ | — |
Provisional pricing arrangements |  | Derivative assets |  | 2.4 |  |  | Derivative assets |  | 1.5 |  |  | Other current liabilities |  | 4.2 |  |  | Other current liabilities |  | 2.4 |
Total derivatives not designated as hedging instruments under ASC 815 |  |  |  | $ | 93.6 |  |  |  |  | $ | 39.4 |  |  |  |  | $ | 4.2 |  |  |  |  | $ | 2.4 |
Total derivatives |  |  |  | $ | 93.6 |  |  |  |  | $ | 39.4 |  |  |  |  | $ | 4.4 |  |  |  |  | $ | 2.7 |
Schedule Of Derivatives Not Designated As Hedging Instruments Statements Of Financial Performance Location Table | The following summarizes the effect of our derivatives that are not designated as hedging instruments in the Statements of Unaudited Condensed Consolidated Operations:
(In Millions)
Derivatives Not Designated as Hedging Instruments |  | Location of Income (Loss) Recognized on Derivatives |  | Amount of Income (Loss) Recognized on Derivatives
|  |  |  | Three Months Ended March 31,
|  |  |  | 2018 |  | 2017
Customer Supply Agreements |  | Product revenues |  | $ | 41.9 |  |  | $ | 17.8 |
Provisional Pricing Arrangements |  | Product revenues |  | 3.2 |  |  | 15.7 |
Commodity Contracts |  | Cost of goods sold and operating expenses |  | — |  |  | (1.3 | )
Total |  |  |  | $ | 45.1 |  |  | $ | 32.2 |

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- Definition Tabular disclosure of the location and fair value amounts of derivative instruments (and nonderivative instruments that are designated and qualify as hedging instruments) reported in the statement of financial position. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4B -URI http://asc.fasb.org/extlink&oid=84234895&loc=SL5624163-113959 + Details
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- Definition Tabular disclosure for other derivative instruments not designated as hedging instruments of (a) the location and amount of gains and losses reported in the statement of financial performance and (b) the location and fair value amounts of the instruments reported in the statement of financial position. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=84234895&loc=SL5624171-113959 + Details
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