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v3.20.4

Common and Preferred Stock (Tables) | 12 Months Ended
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Dec. 31, 2020
Common And Preferred Stock [Abstract] |
Schedule of Share Repurchases |
In millions, except per share amounts |  | 2020 |  |  | 2019 |  |  | 2018 |
Number of shares purchased or repurchased |  |  | 26.4 |  |  |  | 11.1 |  |  |  | 5.8 |
Average price paid per share |  | $ | 7.50 |  |  | $ | 9.12 |  |  | $ | 8.21 |
Remaining authorization as of December 31 |  | $ | — |  |  | $ | 101 |  |  | $ | 202 |

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