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v3.25.0.1

Variable interest entities - Schedule of results of variable interest entities (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Variable Interest Entity [Line Items] |  |  |
Gross profit | $ 12,701 | $ 11,963 | $ 10,815
Net loss | 3,492 | 3,178 | 3,862
Net cash provided by operating activities | 4,989 | 5,017 | 3,800
Variable interest entity, primary beneficiary |  |  |
Variable Interest Entity [Line Items] |  |  |
Total revenues | 359 | 446 | 544
Total cost of revenues | (339) | (416) | (479)
Gross profit | 20 | 30 | 65
Net loss | (40) | (325) | (24)
Net cash provided by operating activities | $ 10 | $ 24 | $ 12

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