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Stock-Based Compensation (Stock Awards) (Details) (USD $)
In Millions, except Share data, unless otherwise specified
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0 Months Ended |
3 Months Ended |
0 Months Ended |
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Mar. 20, 2015
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Mar. 04, 2015
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May 02, 2015
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May 03, 2014
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Mar. 20, 2014
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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| Stock-based compensation expense |
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|
$ 15 |
$ 10 |
|
| Granted, weighted average grant date fair value (in dollars per share) |
$ 5.36 |
$ 7.88 |
$ 5.36 |
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| Stock Options [Member] |
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|
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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|
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| Granted, weighted-average exercise price (in dollars per share) |
$ 7.77 |
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$ 7.77 |
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| Stock Options [Member] | Time-based [Member] |
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|
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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| Granted, stock options |
4,294,885 |
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4,294,885 |
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| Restricted Stock Units (RSUs) [Member] | Time-based [Member] |
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|
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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|
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| Granted, stock awards |
2,135,177 |
28,554 |
2,163,731 |
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| Restricted Stock Units (RSUs) [Member] | Performance-based [Member] |
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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|
|
|
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| Granted, stock awards |
1,534,754 |
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1,534,754 |
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| Phantom Shares [Member] |
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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| Granted, stock awards |
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|
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2,500,000 |
| Maximum award settlement (in dollars per share) |
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|
|
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$ 15.54 |
| Stock awards, fair value remeasured at period end (in dollars per share) |
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|
$ 8.43 |
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| 2014 Long-Term Incentive Plan [Member] |
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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| Stock awards, number of shares available for grant |
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11,000,000 |
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