Consolidated Statements Of Stockholders' Equity (Parenthetical) (USD $) In Millions	6 Months Ended
Jun. 30, 2011	Jun. 30, 2010
Consolidated Statements Of Stockholders' Equity
Currency translation adjustment, tax benefit	$ 14	$ 32
Reclassification of unrealized loss on cash flow hedges, tax benefit		6
Unrealized gains on cash flow hedges, tax benefit	$ 1	$ 0

Total tax effect of the change in accumulated gains and losses from derivative instruments designated and qualifying as the effective portion of cash flow hedges. The change includes an entity's share of an equity investee's increase or decrease in deferred hedging gains or losses. While for technical reasons this element has no balance attribute, the default assumption is a credit balance consistent with its label.

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Tax effect of the adjustment that results from the process of translating subsidiary financial statements and foreign equity investments into functional currency of the reporting entity. While for technical reasons this element has no balance attribute, the default assumption is a credit balance consistent with its label.

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- Definition

Tax effect on reclassification adjustment for accumulated gains and losses from derivative instrument designated and qualifying as the effective portion of cash flow hedges included in accumulated comprehensive income that was realized in net income during the period.

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