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Accumulated Other Comprehensive Income (Loss) (Tables) | 6 Months Ended
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Jun. 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 |  |  | (311 | ) |  |  | (81 | ) |  |  | — |  |  |  | (392 | )
Amounts reclassified from accumulated other comprehensive income (loss) |  |  | — |  |  |  | 107 |  |  |  | — |  |  |  | 107 |
Balance at June 30, 2015 |  | $ | (826 | ) |  | $ | (202 | ) |  | $ | (91 | ) |  | $ | (1,119 | )
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 June 30, |
|  | 2015 |  |  | 2014 |
|  | Currency Translation Adjustments |  |  | Derivative Financial Instruments |  |  | Defined Benefit Plans |  |  | Total |  |  | Currency Translation Adjustments |  |  | Derivative Financial Instruments |  |  | Defined Benefit Plans |  |  | Total |
Revenue |  | $ | — |  |  | $ | (66 | ) |  | $ | — |  |  | $ | (66 | ) |  | $ | — |  |  | $ | (8 | ) |  | $ | — |  |  | $ | (8 | )
Cost of revenue |  |  | — |  |  |  | 153 |  |  |  | — |  |  |  | 153 |  |  |  | — |  |  |  | (4 | ) |  |  | — |  |  |  | (4 | )
Tax effect |  |  | — |  |  |  | (26 | ) |  |  | — |  |  |  | (26 | ) |  |  | — |  |  |  | 2 |  |  |  | — |  |  |  | 2 |
|  | $ | — |  |  | $ | 61 |  |  | $ | — |  |  | $ | 61 |  |  | $ | — |  |  | $ | (10 | ) |  | $ | — |  |  | $ | (10 | )
|  | Six Months Ended June 30, |
|  | 2015 |  |  | 2014 |
|  | Currency Translation Adjustments |  |  | Derivative Financial Instruments |  |  | Defined Benefit Plans |  |  | Total |  |  | Currency Translation Adjustments |  |  | Derivative Financial Instruments |  |  | Defined Benefit Plans |  |  | Total |
Revenue |  | $ | — |  |  | $ | (1 | ) |  | $ | — |  |  | $ | (1 | ) |  | $ | — |  |  | $ | (21 | ) |  | $ | — |  |  | $ | (21 | )
Cost of revenue |  |  | — |  |  |  | 152 |  |  |  | — |  |  |  | 152 |  |  |  | — |  |  |  | (1 | ) |  |  | — |  |  |  | (1 | )
Tax effect |  |  | — |  |  |  | (44 | ) |  |  | — |  |  |  | (44 | ) |  |  | — |  |  |  | 5 |  |  |  | — |  |  |  | 5 |
|  | $ | — |  |  | $ | 107 |  |  | $ | — |  |  | $ | 107 |  |  | $ | — |  |  | $ | (17 | ) |  | $ | — |  |  | $ | (17 | )

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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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