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Accumulated other comprehensive Income (loss) (Tables) | 3 Months Ended
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Mar. 31, 2013
Equity [Abstract] |
Components of Accumulated Other Comprehensive Income (Loss) | The components of accumulated other comprehensive income (loss) are as follows (in millions):
|  | Currency Translation Adjustments |  |  | Derivative Financial Instruments, Net of Tax |  |  | Defined Benefit Plans, Net of Tax |  |  | Total |
Balance at December 31, 2011 |  | $ | 68 |  |  | $ | (57 | ) |  | $ | (34 | ) |  | $ | (23 | )
Accumulated other comprehensive income (loss) before reclassifications |  |  | 65 |  |  |  | 56 |  |  |  | — |  |  |  | 121 |
Amounts reclassified from accumulated other comprehensive income (loss) |  |  | — |  |  |  | 7 |  |  |  | — |  |  |  | 7 |
Balance at March 31, 2012 |  | $ | 133 |  |  | $ | 6 |  |  | $ | (34 | ) |  | $ | 105 |
Balance at December 31, 2012 |  | $ | 132 |  |  | $ | 42 |  |  | $ | (67 | ) |  | $ | 107 |
Accumulated other comprehensive income (loss) before reclassifications |  |  | (117 | ) |  |  | (44 | ) |  |  | — |  |  |  | (161 | )
Amounts reclassified from accumulated other comprehensive income (loss) |  |  | — |  |  |  | (4 | ) |  |  | — |  |  |  | (4 | )
Balance at March 31, 2013 |  | $ | 15 |  |  | $ | (6 | ) |  | $ | (67 | ) |  | $ | (58 | )
Components Of Amounts Reclassified From Accumulated Other Comprehensive Income Loss | The components of amounts reclassified from accumulated other comprehensive income (loss) are as follows (in millions):
|  | Three Months Ended March 31, |
|  | 2013 |  |  | 2012 |
|  | Currency Translation Adjustments |  |  | Derivative Financial Instruments |  |  | Defined Benefit Plans |  |  | Total |  |  | Currency Translation Adjustments |  |  | Derivative Financial Instruments |  |  | Defined Benefit Plans |  |  | Total |
Revenue |  | $ | — |  |  | $ | (2 | ) |  | $ | — |  |  | $ | (2 | ) |  | $ | — |  |  | $ | 4 |  |  | $ | — |  |  | $ | 4 |
Cost of revenue |  |  | — |  |  |  | (3 | ) |  |  | — |  |  |  | (3 | ) |  |  | — |  |  |  | 6 |  |  |  | — |  |  |  | 6 |
Tax effect |  |  | — |  |  |  | 1 |  |  |  | — |  |  |  | 1 |  |  |  | — |  |  |  | (3 | ) |  |  | — |  |  |  | (3 | )
|  | $ | — |  |  | $ | (4 | ) |  | $ | — |  |  | $ | (4 | ) |  | $ | — |  |  | $ | 7 |  |  | $ | — |  |  | $ | 7 |

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- Definition Schedule Of Reclassifications Out of Accumulated Other Comprehensive Income Loss [Table Text Block] + References No definition available. + Details
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- Details
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- Definition Tabular disclosure of the components of accumulated other comprehensive income (loss). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=20435746&loc=SL7669686-108580 + Details
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