Financial Assets at Fair Value - Summary of Financial Assets at Fair Value Through Other Comprehensive Income in Equity Investments in Listed Securities and Unlisted Securities (Details) - CNY (¥) ¥ in Millions |
Dec. 31, 2025 |
Dec. 31, 2024 |
|---|---|---|
| Disclosure Of Financial Assets Designated As Measured At Fair Value Through Profit Or Loss [Line Items] | ||
| Equity investments | ¥ 26,231 | ¥ 14,498 |
| Equity investments in listed entities | Fair value in other comprehensive income | ||
| Disclosure Of Financial Assets Designated As Measured At Fair Value Through Profit Or Loss [Line Items] | ||
| Equity investments | 26,217 | 14,498 |
| Equity investments in unlisted entities | Fair value in other comprehensive income | ||
| Disclosure Of Financial Assets Designated As Measured At Fair Value Through Profit Or Loss [Line Items] | ||
| Equity investments | ¥ 14 | ¥ 0 |