Basis of Presentation - Summary of Reclassification Adjustments Made Between Operating Expenses (Details) - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Jun. 30, 2025 |
Jun. 30, 2024 |
Jun. 30, 2025 |
Jun. 30, 2024 |
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| Error Corrections and Prior Period Adjustments Restatement [Line Items] | |||||||||||||||||||
| Cost of sales (formerly Cost of revenue) | $ 42 | $ 40 | $ 68 | $ 64 | |||||||||||||||
| Marketing (formerly Selling and marketing) | [1] | 218 | 204 | 389 | 366 | ||||||||||||||
| Personnel (including stock-based compensation of $34 and $61) | 149 | 153 | 293 | 303 | |||||||||||||||
| Technology (formerly Technology and content) | [1] | 25 | 22 | 48 | 44 | ||||||||||||||
| General and administrative | 13 | 21 | 31 | 50 | |||||||||||||||
| Depreciation and amortization | 23 | 21 | 44 | 42 | |||||||||||||||
| Restructuring and other related reorganization costs | 0 | 0 | 10 | 1 | |||||||||||||||
| Total costs and expenses | $ 470 | 461 | $ 883 | 870 | |||||||||||||||
| Previously Reported [Member] | |||||||||||||||||||
| Error Corrections and Prior Period Adjustments Restatement [Line Items] | |||||||||||||||||||
| Cost of sales (formerly Cost of revenue) | 46 | 81 | |||||||||||||||||
| Marketing (formerly Selling and marketing) | 263 | 484 | |||||||||||||||||
| Personnel (including stock-based compensation of $34 and $61) | 0 | 0 | |||||||||||||||||
| Technology (formerly Technology and content) | 75 | 151 | |||||||||||||||||
| General and administrative | 56 | 112 | |||||||||||||||||
| Depreciation and amortization | 21 | 42 | |||||||||||||||||
| Restructuring and other related reorganization costs | 0 | 0 | |||||||||||||||||
| Total costs and expenses | 461 | 870 | |||||||||||||||||
| Adjustments [Member] | |||||||||||||||||||
| Error Corrections and Prior Period Adjustments Restatement [Line Items] | |||||||||||||||||||
| Cost of sales (formerly Cost of revenue) | [2] | (6) | (17) | ||||||||||||||||
| Marketing (formerly Selling and marketing) | [3] | (59) | (118) | ||||||||||||||||
| Personnel (including stock-based compensation of $34 and $61) | [4] | 153 | 303 | ||||||||||||||||
| Technology (formerly Technology and content) | [5] | (53) | (107) | ||||||||||||||||
| General and administrative | [6] | (35) | (62) | ||||||||||||||||
| Depreciation and amortization | 0 | 0 | |||||||||||||||||
| Restructuring and other related reorganization costs | 0 | 1 | [7] | ||||||||||||||||
| Total costs and expenses | 0 | 0 | |||||||||||||||||
| As Adjusted [Member] | |||||||||||||||||||
| Error Corrections and Prior Period Adjustments Restatement [Line Items] | |||||||||||||||||||
| Cost of sales (formerly Cost of revenue) | 40 | 64 | |||||||||||||||||
| Marketing (formerly Selling and marketing) | 204 | 366 | |||||||||||||||||
| Personnel (including stock-based compensation of $34 and $61) | 153 | 303 | |||||||||||||||||
| Technology (formerly Technology and content) | 22 | 44 | |||||||||||||||||
| General and administrative | 21 | 50 | |||||||||||||||||
| Depreciation and amortization | 21 | 42 | |||||||||||||||||
| Restructuring and other related reorganization costs | 0 | 1 | |||||||||||||||||
| Total costs and expenses | $ 461 | $ 870 | |||||||||||||||||
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