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Accumulated Other Comprehensive Income (Loss) (Tables) | 9 Months Ended
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Sep. 30, 2015
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, 2014 |  | $ | (515 | ) |  | $ | (228 | ) |  | $ | (91 | ) |  | $ | (834 | )
Accumulated other comprehensive income (loss) before reclassifications |  |  | (650 | ) |  |  | (151 | ) |  |  | — |  |  |  | (801 | )
Amounts reclassified from accumulated other comprehensive income (loss) |  |  | — |  |  |  | 158 |  |  |  | — |  |  |  | 158 |
Balance at September 30, 2015 |  | $ | (1,165 | ) |  | $ | (221 | ) |  | $ | (91 | ) |  | $ | (1,477 | )
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 September 30, |
|  | 2015 |  |  | 2014 |
|  | Currency Translation Adjustments |  |  | Derivative Financial Instruments |  |  | Defined Benefit Plans |  |  | Total |  |  | Currency Translation Adjustments |  |  | Derivative Financial Instruments |  |  | Defined Benefit Plans |  |  | Total |
Revenue |  | $ | — |  |  | $ | (10 | ) |  | $ | — |  |  | $ | (10 | ) |  | $ | — |  |  | $ | (4 | ) |  | $ | — |  |  | $ | (4 | )
Cost of revenue |  |  | — |  |  |  | 82 |  |  |  | — |  |  |  | 82 |  |  |  | — |  |  |  | 6 |  |  |  | — |  |  |  | 6 |
Tax effect |  |  | — |  |  |  | (21 | ) |  |  | — |  |  |  | (21 | ) |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
|  | $ | — |  |  | $ | 51 |  |  | $ | — |  |  | $ | 51 |  |  | $ | — |  |  | $ | 2 |  |  | $ | — |  |  | $ | 2 |
|  | Nine Months Ended September 30, |
|  | 2015 |  |  | 2014 |
|  | Currency Translation Adjustments |  |  | Derivative Financial Instruments |  |  | Defined Benefit Plans |  |  | Total |  |  | Currency Translation Adjustments |  |  | Derivative Financial Instruments |  |  | Defined Benefit Plans |  |  | Total |
Revenue |  | $ | — |  |  | $ | (11 | ) |  | $ | — |  |  | $ | (11 | ) |  | $ | — |  |  | $ | (25 | ) |  | $ | — |  |  | $ | (25 | )
Cost of revenue |  |  | — |  |  |  | 234 |  |  |  | — |  |  |  | 234 |  |  |  | — |  |  |  | 5 |  |  |  | — |  |  |  | 5 |
Tax effect |  |  | — |  |  |  | (65 | ) |  |  | — |  |  |  | (65 | ) |  |  | — |  |  |  | 5 |  |  |  | — |  |  |  | 5 |
|  | $ | — |  |  | $ | 158 |  |  | $ | — |  |  | $ | 158 |  |  | $ | — |  |  | $ | 15 |  |  | $ | — |  |  | $ | 15 |

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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=36458714&loc=SL7669686-108580 + Details
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