v3.26.1
Financial risk management - Liquidity risk (Details) - CNY (¥)
¥ in Thousands
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Borrowings      
Maturity of non-derivative financial liabilities      
Non-derivative financial liabilities, contractual undiscounted cash flows ¥ 12,854,112 ¥ 11,878,426 ¥ 9,038,109
Lease liabilities      
Maturity of non-derivative financial liabilities      
Non-derivative financial liabilities, contractual undiscounted cash flows 1,322,514 1,261,501 1,254,788
Preferred shares issued by subsidiaries      
Maturity of non-derivative financial liabilities      
Non-derivative financial liabilities, contractual undiscounted cash flows 13,628,571 12,724,606 18,297,204
Accounts and notes payable      
Maturity of non-derivative financial liabilities      
Non-derivative financial liabilities, contractual undiscounted cash flows 4,936,984 4,477,990 4,594,287
Other financial liabilities      
Maturity of non-derivative financial liabilities      
Non-derivative financial liabilities, contractual undiscounted cash flows 18,088,173 11,523,699 10,754,765
To be recovered within 12 months | Borrowings      
Maturity of non-derivative financial liabilities      
Non-derivative financial liabilities, contractual undiscounted cash flows 12,595,731 11,045,619 7,925,685
To be recovered within 12 months | Lease liabilities      
Maturity of non-derivative financial liabilities      
Non-derivative financial liabilities, contractual undiscounted cash flows 546,347 563,252 522,131
To be recovered within 12 months | Preferred shares issued by subsidiaries      
Maturity of non-derivative financial liabilities      
Non-derivative financial liabilities, contractual undiscounted cash flows 262,915    
To be recovered within 12 months | Accounts and notes payable      
Maturity of non-derivative financial liabilities      
Non-derivative financial liabilities, contractual undiscounted cash flows 4,936,984 4,477,990 4,594,287
To be recovered within 12 months | Other financial liabilities      
Maturity of non-derivative financial liabilities      
Non-derivative financial liabilities, contractual undiscounted cash flows 18,030,341 11,419,633 10,493,551
Between 1 year and 2 years | Borrowings      
Maturity of non-derivative financial liabilities      
Non-derivative financial liabilities, contractual undiscounted cash flows 173,766 637,315 913,814
Between 1 year and 2 years | Lease liabilities      
Maturity of non-derivative financial liabilities      
Non-derivative financial liabilities, contractual undiscounted cash flows 384,653 330,468 378,920
Between 1 year and 2 years | Preferred shares issued by subsidiaries      
Maturity of non-derivative financial liabilities      
Non-derivative financial liabilities, contractual undiscounted cash flows 3,914,992 268,885  
Between 1 year and 2 years | Other financial liabilities      
Maturity of non-derivative financial liabilities      
Non-derivative financial liabilities, contractual undiscounted cash flows     197,643
Between 2 years and 5 years | Borrowings      
Maturity of non-derivative financial liabilities      
Non-derivative financial liabilities, contractual undiscounted cash flows 84,615 195,492 198,610
Between 2 years and 5 years | Lease liabilities      
Maturity of non-derivative financial liabilities      
Non-derivative financial liabilities, contractual undiscounted cash flows 362,985 312,368 267,148
Between 2 years and 5 years | Preferred shares issued by subsidiaries      
Maturity of non-derivative financial liabilities      
Non-derivative financial liabilities, contractual undiscounted cash flows 6,366,406 10,514,853 16,384,875
Between 2 years and 5 years | Other financial liabilities      
Maturity of non-derivative financial liabilities      
Non-derivative financial liabilities, contractual undiscounted cash flows 2,860 49,094 8,599
Over 5 years | Lease liabilities      
Maturity of non-derivative financial liabilities      
Non-derivative financial liabilities, contractual undiscounted cash flows 28,529 55,413 86,589
Over 5 years | Preferred shares issued by subsidiaries      
Maturity of non-derivative financial liabilities      
Non-derivative financial liabilities, contractual undiscounted cash flows 3,084,258 1,940,868 1,912,329
Over 5 years | Other financial liabilities      
Maturity of non-derivative financial liabilities      
Non-derivative financial liabilities, contractual undiscounted cash flows ¥ 54,972 ¥ 54,972 ¥ 54,972