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Other (Income) Expenses, Net - Additional Information (Detail) (USD $) In Millions, unless otherwise specified | 12 Months Ended
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Dec. 31, 2012
Component of Other Income, Nonoperating [Line Items] |
Discrete income tax benefit recognized | $ 24
Tapoco Hydroelectric Project [Member] |
Component of Other Income, Nonoperating [Line Items] |
Net gain from asset sales | 320
Australia [Member] |
Component of Other Income, Nonoperating [Line Items] |
Net gain on sale of land | $ 43

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- Definition Discrete income tax benefit recognized. + References No definition available. + Details
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- Definition Gain (loss) on sale of land. + References No definition available. + Details
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- Details
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- Definition The net realized gain (loss) on investments sold during the period, not including gains (losses) on securities separately or otherwise categorized as trading, available-for-sale, or held-to-maturity, which, for cash flow reporting, is a component of proceeds from investing activities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3602-108585 + Details
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