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CONSOLIDATED STATEMENTS OF OPERATIONS (Parenthetical) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2022 | Sep. 30, 2021 | Sep. 30, 2022 | Sep. 30, 2021
Cost of revenue |  |  |  |
Stock-based compensation | $ 4 | $ 6 | $ 10 | $ 17
Selling and marketing |  |  |  |
Stock-based compensation | 18 | 29 | 50 | 78
Technology and content |  |  |  |
Stock-based compensation | 28 | 32 | 82 | 91
General and administrative |  |  |  |
Stock-based compensation | $ 47 | $ 49 | $ 138 | $ 133

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