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Note 11 - Financial Instruments (Tables) | 12 Months Ended
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Dec. 31, 2015
Fair Value Disclosures [Abstract] |
Schedule of Other Derivatives Not Designated as Hedging Instruments, Statements of Financial Performance and Financial Position, Location [Table Text Block] |
|  | Successor |  |  | Predecessor |
(in millions) |  | For the Year Ended December 31, 2015 |  |  | For the Year Ended December 31, 2014 |  |  | For the Four Months Ended December 31, 2013 |  |  | For the Eight Months Ended August 31, 2013 |
Net gain (loss) from derivatives not designated as hedging instruments |  | $ | 14 |  |  | $ | 10 |  |  | $ | (14 | ) |  | $ | 2 |

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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=56946850&loc=SL5624171-113959 + Details
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