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Investments Accounted for Using Equity Method - Summary of Investments Accounted for Using Equity Method (Detail) - CNY (¥)
¥ in Millions
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Investments accounted for using equity method [abstract]      
Investments in associates ¥ 1,572 ¥ 4,590  
Investments in joint ventures 87 79  
Investments accounted for using equity method ¥ 1,659 ¥ 4,669 ¥ 4,274