v2.4.0.6

Other Financial Instruments, Derivatives and Currency Risk - Additional Information (Detail) (USD $) | 12 Months Ended |
--- | --- | ---
Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2010
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Net investment in U.S. dollar functional currency | $ 1,700,000,000 |  |
F/X result on net investment hedge instruments | 26,000,000 | (203,000,000) |
Amount resulting from ineffectiveness of net investment hedge accounting recognized | 0 | 0 |
Fair value of derivative assets | 1,000,000 | 2,000,000 |
Fair value of derivative liabilities | 1,000,000 | 3,000,000 |
Long-term debt | 3,185,000,000 | 3,747,000,000 | 4,128,000,000
Percentage of increased interest rate related to long-term debt | 1.00% |  |
Increase in interest expense for every percentage increase in interest rate | 12,000,000 |  |
Percentage of decreased interest rate related to long-term debt | 1.00% |  |
Decrease in interest expense for every percentage decrease in interest rate | 3,000,000 |  |
Notional value of future contracts | $ 1,000,000 |  |

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- Definition Sum of the carrying values as of the balance sheet date of all long-term debt, which is debt initially having maturities due after one year from the balance sheet date or beyond the operating cycle, if longer, but excluding the portions thereof scheduled to be repaid within one year or the normal operating cycle, if longer plus capital lease obligations due to be paid more than one year after the balance sheet date. + References 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 210.5-02.22) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 22 -Article 5 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 6 -Section H + Details
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