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Stockholders' Equity - Schedule of Repurchase Agreements (Details) - USD ($) shares in Millions, $ in Millions | 3 Months Ended |
--- | --- | ---
Mar. 31, 2022 | Mar. 31, 2021 | Dec. 31, 2021
Shares Repurchase Activity [Line Items] |  |  |
Amount | $ 200 | $ 516 |
Treasury stock | $ 2 |  | $ 8
Open Market Repurchases |  |  |
Shares Repurchase Activity [Line Items] |  |  |
Shares (in shares) | 32 | 85 |
Amount | $ 200 | $ 516 |

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