v3.26.1
Financial Instruments And Risks - Summary of Credit Risk Exposure Of The Financial Instruments Under The Scope of Expected Credit Loss (Detail) - CNY (¥)
¥ in Thousands
Dec. 31, 2025
Dec. 31, 2024
Disclosure Details Of Maximum Credit Risk Exposure Before Collateral Received [Line Items]    
Maximum exposure to credit risk of loans or receivables ¥ 154,252,798 ¥ 163,554,685
Stage One [Member]    
Disclosure Details Of Maximum Credit Risk Exposure Before Collateral Received [Line Items]    
Maximum exposure to credit risk of loans or receivables 152,583,964 162,470,801
Stage Two [Member]    
Disclosure Details Of Maximum Credit Risk Exposure Before Collateral Received [Line Items]    
Maximum exposure to credit risk of loans or receivables 920,689 665,187
Stage Three [Member]    
Disclosure Details Of Maximum Credit Risk Exposure Before Collateral Received [Line Items]    
Maximum exposure to credit risk of loans or receivables 748,145 418,697
On Balance Sheet Exposure [Member] | Cash at bank [member]    
Disclosure Details Of Maximum Credit Risk Exposure Before Collateral Received [Line Items]    
Maximum exposure to credit risk of loans or receivables 22,086,187 29,903,846
On Balance Sheet Exposure [Member] | Cash at bank [member] | Stage One [Member]    
Disclosure Details Of Maximum Credit Risk Exposure Before Collateral Received [Line Items]    
Maximum exposure to credit risk of loans or receivables 22,086,187 29,903,846
On Balance Sheet Exposure [Member] | Restricted Cash [Member]    
Disclosure Details Of Maximum Credit Risk Exposure Before Collateral Received [Line Items]    
Maximum exposure to credit risk of loans or receivables 19,035,154 14,132,034
On Balance Sheet Exposure [Member] | Restricted Cash [Member] | Stage One [Member]    
Disclosure Details Of Maximum Credit Risk Exposure Before Collateral Received [Line Items]    
Maximum exposure to credit risk of loans or receivables 19,035,154 14,132,034
On Balance Sheet Exposure [Member] | Financial assets held under resale agreements [member]    
Disclosure Details Of Maximum Credit Risk Exposure Before Collateral Received [Line Items]    
Maximum exposure to credit risk of loans or receivables 1,577,029 657,033
On Balance Sheet Exposure [Member] | Financial assets held under resale agreements [member] | Stage One [Member]    
Disclosure Details Of Maximum Credit Risk Exposure Before Collateral Received [Line Items]    
Maximum exposure to credit risk of loans or receivables 1,577,029 657,033
On Balance Sheet Exposure [Member] | Financial assets at fair value through other comprehensive income [Member]    
Disclosure Details Of Maximum Credit Risk Exposure Before Collateral Received [Line Items]    
Maximum exposure to credit risk of loans or receivables 6,182,229 1,156,095
On Balance Sheet Exposure [Member] | Financial assets at fair value through other comprehensive income [Member] | Stage One [Member]    
Disclosure Details Of Maximum Credit Risk Exposure Before Collateral Received [Line Items]    
Maximum exposure to credit risk of loans or receivables 6,182,229 1,156,095
On Balance Sheet Exposure [Member] | Financial assets at amortized cost [member]    
Disclosure Details Of Maximum Credit Risk Exposure Before Collateral Received [Line Items]    
Maximum exposure to credit risk of loans or receivables   1,499,000
On Balance Sheet Exposure [Member] | Financial assets at amortized cost [member] | Stage One [Member]    
Disclosure Details Of Maximum Credit Risk Exposure Before Collateral Received [Line Items]    
Maximum exposure to credit risk of loans or receivables   1,499,000
On Balance Sheet Exposure [Member] | Accounts and other receivables and contract assets [Member]    
Disclosure Details Of Maximum Credit Risk Exposure Before Collateral Received [Line Items]    
Maximum exposure to credit risk of loans or receivables 3,081,225 4,698,008
On Balance Sheet Exposure [Member] | Accounts and other receivables and contract assets [Member] | Stage One [Member]    
Disclosure Details Of Maximum Credit Risk Exposure Before Collateral Received [Line Items]    
Maximum exposure to credit risk of loans or receivables 3,080,913 4,697,722
On Balance Sheet Exposure [Member] | Accounts and other receivables and contract assets [Member] | Stage Three [Member]    
Disclosure Details Of Maximum Credit Risk Exposure Before Collateral Received [Line Items]    
Maximum exposure to credit risk of loans or receivables 312 286
On Balance Sheet Exposure [Member] | Loans to consumers [member]    
Disclosure Details Of Maximum Credit Risk Exposure Before Collateral Received [Line Items]    
Maximum exposure to credit risk of loans or receivables 102,290,974 111,508,669
On Balance Sheet Exposure [Member] | Loans to consumers [member] | Stage One [Member]    
Disclosure Details Of Maximum Credit Risk Exposure Before Collateral Received [Line Items]    
Maximum exposure to credit risk of loans or receivables 100,622,452 110,425,071
On Balance Sheet Exposure [Member] | Loans to consumers [member] | Stage Two [Member]    
Disclosure Details Of Maximum Credit Risk Exposure Before Collateral Received [Line Items]    
Maximum exposure to credit risk of loans or receivables 920,689 665,187
On Balance Sheet Exposure [Member] | Loans to consumers [member] | Stage Three [Member]    
Disclosure Details Of Maximum Credit Risk Exposure Before Collateral Received [Line Items]    
Maximum exposure to credit risk of loans or receivables 747,833 418,411
Off Balance Sheet Exposure [Member] | Financial guarantee contracts [member]    
Disclosure Details Of Maximum Credit Risk Exposure Before Collateral Received [Line Items]    
Financing guarantee contracts 67,470,208 68,017,023
Off Balance Sheet Exposure [Member] | Financial guarantee contracts [member] | Stage One [Member]    
Disclosure Details Of Maximum Credit Risk Exposure Before Collateral Received [Line Items]    
Financing guarantee contracts 65,376,106 67,368,608
Off Balance Sheet Exposure [Member] | Financial guarantee contracts [member] | Stage Two [Member]    
Disclosure Details Of Maximum Credit Risk Exposure Before Collateral Received [Line Items]    
Financing guarantee contracts ¥ 2,094,102 ¥ 648,415