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Other Financial Instruments, Derivatives and Currency Risk - Additional Information (Detail) (USD $)
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12 Months Ended | ||
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Dec. 31, 2012
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Dec. 31, 2011
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Dec. 31, 2010
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| 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 | ||
| X | ||||||||||
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- Definition
Increase in basis points of the stated interest rate on the debt instrument. No definition available.
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- Definition
Decrease in basis points of the stated interest rate on the debt instrument. No definition available.
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- Definition
Decrease in Interest Expense for Every Percentage Decrease in Interest Rate No definition available.
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- Definition
Increase in Interest Expense for Every Percentage Increase in Interest Rate No definition available.
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- Definition
Gain (loss) on hedging derivative instrument or the foreign currency transaction gain (loss) on the nonderivative hedging instrument designated as a hedge of a net investment in foreign operations related to hedge ineffectiveness, which is included in earnings in the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Fair value of derivative asset, presented on a gross basis even when the derivative instrument is subject to master netting arrangements and qualifies for net presentation in the statement of financial position. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Fair value of derivative liability, presented on a gross basis even when the derivative instrument is subject to master netting arrangements and qualifies for net presentation in the statement of financial position. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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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. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Aggregate notional amount of all derivatives designated as cash flow hedging instruments. The notional amount relates to a number of currency units, shares, bushels, pounds, or other units specified in a derivative instrument. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Total notional amount of all derivative and nonderivative instruments designated as a hedge of a net investment in a foreign operation. The notional amount relates to a number of currency units, shares, bushels, pounds, or other units specified in a derivative instrument. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Current period adjustment resulting from gains and losses on foreign currency transactions that are designated as, and are effective as, economic hedges of a net investment in a foreign entity, gross of tax effect. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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