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Merger Transaction and Integration Costs (Tables) | 6 Months Ended
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Jun. 30, 2014
Business Combinations [Abstract] |
Merger Transaction and Integration Costs | The following table sets forth merger integration and transaction costs recognized for the three and six months ended June 30, 2014 and 2013.
| Three Months Ended June 30, | Six Months Ended June 30,
| 2014 | 2013 | 2014 | 2013
| (in millions)
Merger integration costs | $ | 8 |  | $ | 28 |  | $ | 26 |  | $ | 28 |
Merger transaction costs | — |  | 9 |  | — |  | 19 |
Total merger related costs | $ | 8 |  | $ | 37 |  | $ | 26 |  | $ | 47 |

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