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Subsequent Event - Additional Information (Detail) (USD $) In Millions, unless otherwise specified | 12 Months Ended | 1 Months Ended
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Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2010 | Feb. 28, 2013 Subsequent Event [Member]
Subsequent Event [Line Items] |  |  |  |
Sales |  |  |  | $ 250
Operating loss | $ 271 | $ (295) | $ (463) | $ 30

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- Definition The net result for the period of deducting operating expenses from operating revenues. + References No definition available. + Details
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- Definition Aggregate revenue during the period from sale of goods in the normal course of business, before deducting returns, allowances and discounts. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1(a)) -URI http://asc.fasb.org/extlink&oid=6880815&loc=d3e20235-122688 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 1 -Article 5 + Details
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- Details
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