v3.26.1
Financial risk management - Changes in level 3 instruments of financial assets and financial liabilities (Details) - CNY (¥)
¥ in Thousands
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Change in level 3 instrument of financial assets      
Opening balance ¥ 143,893,331 ¥ 144,079,023  
Closing balance 157,585,403 143,893,331 ¥ 144,079,023
Change in level 3 instrument of financial liability      
Balance as of beginning 45,191,352 44,677,404  
Balance as of ending 59,381,313 45,191,352 44,677,404
Level 3 | Derivative liabilities and other financial liabilities      
Change in level 3 instrument of financial liability      
Balance as of beginning 370,666    
Additions 900,000    
Changes in fair value (333,831)    
Currency translation differences (556)    
Balance as of ending 936,279 370,666  
Net unrealized gains (losses) through profit or loss for the year 353    
Level 3 | Derivative liabilities and other financial liabilities | Measured at FVTPL      
Change in level 3 instrument of financial liability      
Balance as of beginning 370,666 206,497  
Additions   247,986 529,116
Disposals   (456,098)  
Changes in fair value   369,454 (320,618)
Currency translation differences   2,827 (2,001)
Balance as of ending   370,666 206,497
Net unrealized gains (losses) through profit or loss for the year   (295,536) 4,556
Level 3 | Investment in ordinary shares and preferred shares | Measured at FVTPL      
Change in level 3 instrument of financial assets      
Opening balance 1,919,716 1,267,072 853,934
Additions 550,111 551,744 636,709
Changes in fair value (22,773) 91,828 (177,993)
Transfer to level 1 financial instruments     (60,402)
Currency translation differences (16,655) 9,072 14,824
Closing balance 2,430,399 1,919,716 1,267,072
Net unrealized gains (losses) through profit or loss for the year (22,773) 128,580 (177,993)
Level 3 | Investment in ordinary shares | Measured at FVTOCI      
Change in level 3 instrument of financial assets      
Opening balance 30,000 86,586 85,726
Changes in fair value (11,882) (5,000)  
Transfer to level 1 financial instruments   (51,908)  
Currency translation differences   322 860
Closing balance 18,118 30,000 86,586
Level 3 | Investment in limited partnerships      
Change in level 3 instrument of financial assets      
Opening balance 1,147,455 1,225,642  
Additions 620,093 1,500  
Disposals/settlements (58,822)    
Disposals/settlements   (54,073)  
Changes in fair value 10,843 (31,439)  
Currency translation differences (14,534) 5,825  
Closing balance 1,705,035 1,147,455 1,225,642
Net unrealized gains (losses) through profit or loss for the year (5,816) (31,577)  
Level 3 | Treasury investments | Measured at FVTPL      
Change in level 3 instrument of financial assets      
Opening balance 4,868,032    
Additions 31,622,698    
Disposals/settlements (29,881,408)    
Changes in fair value 114,906    
Closing balance 6,724,228 4,868,032  
Net unrealized gains (losses) through profit or loss for the year 38,713    
Level 3 | Treasury investments | Measured at FVTPL | Measured at FVTPL      
Change in level 3 instrument of financial assets      
Opening balance 4,868,032    
Additions   14,265,000  
Disposals/settlements   (9,454,911)  
Changes in fair value   57,943  
Closing balance   4,868,032  
Net unrealized gains (losses) through profit or loss for the year   54,587  
Level 3 | Loans receivable | Measured at FVTOCI      
Change in level 3 instrument of financial assets      
Additions 30,035,537    
Disposals/settlements (25,260,285)    
Changes in fair value (175,653)    
Closing balance 4,599,599    
Net unrealized gains (losses) through profit or loss for the year 21,901    
Level 3 | Others | Measured at FVTPL      
Change in level 3 instrument of financial assets      
Opening balance 367,353 847,373 685,707
Additions 53,403 53,576 397,865
Disposals/settlements (27,060)   (145,517)
Disposals/settlements   (266,394)  
Changes in fair value (62,116) (152,885) (97,936)
Transfer to level 1 financial instruments   (115,496)  
Currency translation differences (71) 1,179 7,254
Closing balance 331,509 367,353 847,373
Net unrealized gains (losses) through profit or loss for the year ¥ (62,116) (27,795) (97,936)
Level 3 | Investments in limited partnerships      
Change in level 3 instrument of financial assets      
Opening balance   ¥ 1,225,642 1,300,119
Additions     202
Disposals/settlements     (75,555)
Changes in fair value     (6,995)
Currency translation differences     7,871
Closing balance     1,225,642
Net unrealized gains (losses) through profit or loss for the year     ¥ (6,995)