Note 25 - Fresh Start Accounting (Details) - Goodwill (USD $) In Millions, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Sep. 03, 2013	Sep. 01, 2013
Goodwill [Line Items]
Reorganization value of Successor assets	$ 2,556us-gaap_Assets	$ 3,200us-gaap_Assets
Reorganization value of Successor assets in excess of fair value - Successor goodwill	96us-gaap_Goodwill	88us-gaap_Goodwill
Successor [Member]
Goodwill [Line Items]
Reorganization value of Successor assets	2,556	3,200	3,463	3,463
Less: Fair value of Successor assets (excluding goodwill)				3,375
Reorganization value of Successor assets in excess of fair value - Successor goodwill	$ 96	$ 88	$ 88	$ 88

Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.18)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

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Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 12

-Article 7

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

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- Definition

Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 820

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (a)

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Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 20

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267

Reference 2: http://www.xbrl.org/2003/role/presentationRef

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