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Stockholders' Equity - Common Stock Repurchased (Details) - USD ($) $ / shares in Units, $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022
Equity [Abstract] |  |  |  |
Common stock repurchased (in shares) | 0 | 1,191,544 | 16,389,696 | 30,721,944
Average purchase price per share (in dollars per share) | $ 0 | $ 14.14 | $ 15.71 | $ 18.00
Shares repurchased related to employee stock-based compensation plans (in shares) | 10,687 | 448 | 1,088,330 | 1,131,351
Average purchase price per share (in dollars per share) | $ 16.14 | $ 13.99 | $ 15.45 | $ 18.36
Common shares issued (in shares) | 200,886 | 4,682 | 3,073,639 | 3,093,392
Remaining authority under the share repurchase program | $ 326 |  | $ 326 |

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