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Income Taxes - Additional Information (Detail) (USD $)
In Millions, unless otherwise specified |
Dec. 31, 2011
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Dec. 31, 2010
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Dec. 31, 2009
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| Income Taxes [Line Items] | |||
| Cumulative amount of foreign subsidiaries earnings upon which U.S. income taxes have not been provided | $ 24,800 | ||
| California research and development credit carryforwards | 55 | ||
| California research and development credit carryforwards, valuation allowance | 48 | ||
| Federal and state capital loss carryforwards, valuation allowance | 285 | ||
| Total unrecognized tax benefits that, if recognized, would affect our effective tax rate | 1,350 | 951 | 814 |
| Uncertain tax positions, accrued interest and penalties | 129 | 97 | |
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Federal
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| Income Taxes [Line Items] | |||
| Net operating loss carryforwards | 420 | ||
| Capital loss carryforwards | 165 | ||
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State
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| Income Taxes [Line Items] | |||
| Net operating loss carryforwards | 310 | ||
| Capital loss carryforwards | $ 422 |
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- Definition
The sum of capital loss carryforwards, before tax effects, available to reduce future taxable income under enacted tax laws. No definition available.
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- Details
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- Definition
Cumulative amount of foreign subsidiaries earnings upon which U.S. income taxes have not been provided. No definition available.
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- Definition
The sum of domestic, foreign and state and local operating loss carryforwards, before tax effects, available to reduce future taxable income under enacted tax laws. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The amount of the tax credit carryforward, before tax effects, available to reduce future taxable income under enacted tax laws. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The portion of the deferred tax asset arising from a tax credit carryforward for which it is more likely than not that a tax benefit will not be realized. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
This element represents the total of accruals as of the date of the statement of financial position for interest recognized for an underpayment of income taxes computed by applying the applicable statutory rate of interest to the difference between a tax position recognized for financial reporting purposes and the amount previously taken or expected to be taken in a tax return of the entity and the amount of statutory penalties for a tax position claimed or expected to be claimed by the entity, in its tax return, that does not meet the minimum statutory threshold to avoid payment of penalties. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The total amount of unrecognized tax benefits that, if recognized, would affect the effective tax rate. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The amount of the valuation allowance recorded as of the balance sheet date pertaining to the specified deferred tax asset for which an assessment was made that it is more likely than not that all or a portion of such deferred tax asset will not be realized through related deductions on future tax returns. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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