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Share Repurchases (Tables) | 6 Months Ended
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Jun. 30, 2015
Equity [Abstract] |
Schedule of shares repurchased | The table below presents information on our share repurchases activity under the share repurchase authorizations:
| Three Months Ended |  | Six Months Ended
| June 30, 2015 |  | June 30, 2015
| Number of Shares |  | Average Price per Share |  | Dollars in Millions |  | Number of Shares |  | Average Price per Share |  | Dollars in Millions
Repurchases under the $350 million authorized share repurchase program | — |  |  | n/a |  |  | $ | — |  |  | 496,440 |  |  | $ | 15.12 |  |  | $ | 7 |
Repurchases under the existing share maintenance program | 154,722 |  |  | $ | 16.16 |  |  | $ | 3 |  |  | 622,380 |  |  | $ | 15.81 |  |  | 10 |
Total | 154,722 |  |  | $ | 16.16 |  |  | $ | 3 |  |  | 1,118,820 |  |  | $ | 15.50 |  |  | $ | 17 |
| Three Months Ended |  | Six Months Ended
| June 30, 2014 |  | June 30, 2014
| Number of Shares |  | Average Price per Share |  | Dollars in Millions |  | Number of Shares |  | Average Price per Share |  | Dollars in Millions
Repurchases under the $350 million authorized share repurchase program | 1,403,283 |  |  | $ | 26.74 |  |  | $ | 38 |  |  | 2,973,629 |  |  | $ | 27.25 |  |  | $ | 81 |
Repurchases under the existing share maintenance program | 76,128 |  |  | $ | 26.79 |  |  | 2 |  |  | 529,720 |  |  | $ | 27.67 |  |  | 15 |
Total | 1,479,411 |  |  | $ | 26.74 |  |  | $ | 40 |  |  | 3,503,349 |  |  | $ | 27.31 |  |  | $ | 96 |

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- Definition Tabular disclosure of treasury stock, including, but not limited to, average cost per share, description of share repurchase program, shares repurchased, shares held for each class of treasury stock. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 30 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6405834&loc=d3e23315-112656 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 30 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6405834&loc=d3e23285-112656 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 30 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6405813&loc=d3e23239-112655 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 30 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6405834&loc=d3e23309-112656 + Details
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