Taxes on Income - Deferred Taxes (Parenthetical) (Detail) (USD $)	Dec. 31, 2011	Dec. 31, 2010
Income Taxes [Line Items]
Taxes and other current assets	$ 4,000,000,000	$ 3,000,000,000
Taxes and other noncurrent assets	1,200,000,000	1,200,000,000
Other current liabilities	291,000,000	108,000,000
Noncurrent deferred tax liabilities	$ 19,597,000,000	$ 18,628,000,000

- Definition

Represents the noncurrent portion of deferred tax liabilities, which result from applying the applicable tax rate to net taxable temporary differences pertaining to each jurisdiction to which the entity is obligated to pay income tax. A noncurrent taxable temporary difference is a difference between the tax basis and the carrying amount of a noncurrent asset or liability in the financial statements prepared in accordance with generally accepted accounting principles. In a classified statement of financial position, an enterprise separates deferred tax liabilities and assets into a current amount and a noncurrent amount. Deferred tax liabilities and assets are classified as current or noncurrent based on the classification of the related asset or liability for financial reporting. A deferred tax liability or asset that is not related to an asset or liability for financial reporting, including deferred tax assets related to carryforwards, are classified according to the expected reversal date of the temporary difference.

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