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Note 21 - Condensed Combined Debtor-In-Possession Financial Information (Detail) - Debtors’ Statement Of Financial Position (Parentheticals) (USD $) In Millions, except Per Share data, unless otherwise specified | Mar. 31, 2013 | Dec. 31, 2012
--- | --- | ---
Property, plant and equipment, accumulated depreciation (in Dollars) | $ 4,289 | $ 4,412
Common stock, par value (in Dollars per share) | $ 2.50 | $ 2.50
Condensed Statement of Financial Position [Member] |  |
Property, plant and equipment, accumulated depreciation (in Dollars) | $ 3,275 | $ 3,294
Common stock, par value (in Dollars per share) | $ 2.50 |

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- Definition Face amount or stated value of common stock per share; generally not indicative of the fair market value per share. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 129 -Paragraph 4 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.29) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 30 -Article 5 + Details
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