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Share Repurchases (Details) - USD ($) shares in Millions | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2021 | Jun. 30, 2022 | Jun. 30, 2021 | Oct. 31, 2020
Class of Stock [Line Items] |  |  |  |
Payments for repurchase of common stock |  | $ 500,000,000.0 | $ 1,050,000,000 |
2020 Share Repurchase Program |  |  |  |
Class of Stock [Line Items] |  |  |  |
Stock Repurchase Program, Authorized Amount |  |  |  | $ 5,000,000,000
Repurchase of common stock, at cost, shares | 1.6 |  | 3.8 |
Payments for repurchase of common stock | $ 450,000,000 |  | $ 1,100,000,000 |
Amount remaining under 2019 Share Repurchase Program |  | $ 2,300,000,000 |  |

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