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Taxation - Summary of Income Tax Expenses (Details) - CNY (¥)
¥ in Millions
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Major components of tax expense (income) [abstract]      
Current income tax ¥ 604 ¥ 530 ¥ 634
Deferred income tax (note b) (70) (113) (178)
Total income tax expense ¥ 534 ¥ 417 ¥ 456