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Share Repurchase Programs (Details) ¥ in Thousands, shares in Millions, $ in Millions |  |  | 1 Months Ended | 12 Months Ended
--- | --- | --- | --- | ---
Jan. 09, 2023 USD ($) shares | Nov. 17, 2022 USD ($) | Aug. 31, 2021 USD ($) | Feb. 28, 2021 USD ($) | Dec. 31, 2024 CNY (¥) shares | Dec. 31, 2024 USD ($) shares | Dec. 31, 2023 CNY (¥) | Dec. 31, 2022 CNY (¥)
Share Repurchase Programs |  |  |  |  |  |  |  |
Value of shares repurchased | ¥ |  |  |  |  | ¥ 8,742,223 |  | ¥ 4,791,014 | ¥ 8,006,226
American Depositary Shares | 2021 share repurchase program |  |  |  |  |  |  |  |
Share Repurchase Programs |  |  |  |  |  |  |  |
Authorized amount |  |  | $ 3,000.0 | $ 2,000.0 |  |  |  |
Share repurchase program period, maximum |  |  |  | 24 months |  |  |  |
Shares repurchased (in shares) | shares | 33.6 |  |  |  |  |  |  |
Value of shares repurchased | $ 3,000.0 |  |  |  |  |  |  |
American Depositary Shares | 2021 share repurchase program | Youdao |  |  |  |  |  |  |  |
Share Repurchase Programs |  |  |  |  |  |  |  |
Authorized amount |  |  | $ 50.0 |  |  |  |  |
Share repurchase program period, maximum |  |  | 36 months |  |  |  |  |
Shares repurchased (in shares) | shares |  |  |  |  | 2.7 | 2.7 |  |
Value of shares repurchased |  |  |  |  |  | $ 22.0 |  |
American Depositary Shares | 2022 share repurchase program |  |  |  |  |  |  |  |
Share Repurchase Programs |  |  |  |  |  |  |  |
Authorized amount |  | $ 5,000.0 |  |  |  |  |  |
Share repurchase program period, maximum |  | 36 months |  |  |  |  |  |
Shares repurchased (in shares) | shares |  |  |  |  | 21.2 | 21.2 |  |
Value of shares repurchased |  |  |  |  |  | $ 1,900.0 |  |

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