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Derivatives - Other Comprehensive Income (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2016 | Sep. 30, 2015 | Sep. 30, 2016 | Sep. 30, 2015
After-tax Derivative Activity recorded in AOCI |  |  |  |
Unrealized losses (gains) on derivatives | $ 1 | $ 2 | $ (13) | $ 2
Reclassification to income of realized loss on derivatives |  |  | $ 7 |

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- Definition Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax 1 + References No definition available. + Details
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- Definition Reclassification to income of realized losses or gains on derivatives net of tax + References No definition available. + Details
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