v3.25.4
Financing Guarantee Liabilities - Summary Of Movement Of Gross Carrying Amount Of Financing Guarantee Contracts (Detail) - CNY (¥)
¥ in Thousands
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Gross carrying amount [member]      
Movement Of Gross Carrying Amount Of Financing Guarantee Commitments [Line Items]      
Beginning balance ¥ 213,891,987 ¥ 327,870,550  
Ending balance 183,910,499 213,891,987 ¥ 327,870,550
Financial guarantee contracts [member] | Gross carrying amount [member]      
Movement Of Gross Carrying Amount Of Financing Guarantee Commitments [Line Items]      
Beginning balance 54,903,487 68,502,938 64,731,369
New guarantee contracts originated 65,141,133 38,342,179 59,085,462
Guarantee liabilities derecognized and other adjustments in the current period (including repayments of loans and guarantee payments) (52,027,597) (51,941,630) (55,313,893)
Ending balance 68,017,023 54,903,487 68,502,938
Financial guarantee contracts [member] | Gross carrying amount [member] | Stage 1 [member]      
Movement Of Gross Carrying Amount Of Financing Guarantee Commitments [Line Items]      
Beginning balance 53,889,614 67,011,692 64,416,918
New guarantee contracts originated 65,141,133 38,342,179 59,085,462
Guarantee liabilities derecognized and other adjustments in the current period (including repayments of loans and guarantee payments) (46,944,282) (44,798,214) (50,729,902)
Ending balance 67,368,608 53,889,614 67,011,692
Financial guarantee contracts [member] | Gross carrying amount [member] | Stage 1 [member] | — From stage 1 to stage 2      
Movement Of Gross Carrying Amount Of Financing Guarantee Commitments [Line Items]      
Transfers financial assets Stage (4,928,503) (7,000,050) (5,887,854)
Financial guarantee contracts [member] | Gross carrying amount [member] | Stage 1 [member] | — From stage 2 to stage 1      
Movement Of Gross Carrying Amount Of Financing Guarantee Commitments [Line Items]      
Transfers financial assets Stage 210,646 334,007 127,068
Financial guarantee contracts [member] | Gross carrying amount [member] | Stage 2 [member]      
Movement Of Gross Carrying Amount Of Financing Guarantee Commitments [Line Items]      
Beginning balance 1,013,873 1,491,246 314,451
Guarantee liabilities derecognized and other adjustments in the current period (including repayments of loans and guarantee payments) (5,083,315) (7,143,416) (4,583,991)
Ending balance 648,415 1,013,873 1,491,246
Financial guarantee contracts [member] | Gross carrying amount [member] | Stage 2 [member] | — From stage 1 to stage 2      
Movement Of Gross Carrying Amount Of Financing Guarantee Commitments [Line Items]      
Transfers financial assets Stage 4,928,503 7,000,050 5,887,854
Financial guarantee contracts [member] | Gross carrying amount [member] | Stage 2 [member] | — From stage 2 to stage 1      
Movement Of Gross Carrying Amount Of Financing Guarantee Commitments [Line Items]      
Transfers financial assets Stage (210,646) (334,007) (127,068)
Financial guarantee contracts [member] | Accumulated Impairment [Member]      
Movement Of Gross Carrying Amount Of Financing Guarantee Commitments [Line Items]      
Beginning balance 4,185,532 5,763,369 2,697,109
New guarantee contracts originated 1,384,484 676,224 980,980
Guarantee liabilities derecognized and other adjustments in the current period (including repayments of loans and guarantee payments) (7,108,899) (9,564,536) (6,538,168)
Remeasurements 5,756,862 7,310,475 8,623,448
Ending balance 4,217,979 4,185,532 5,763,369
Financial guarantee contracts [member] | Accumulated Impairment [Member] | Stage 1 [member]      
Movement Of Gross Carrying Amount Of Financing Guarantee Commitments [Line Items]      
Beginning balance 3,230,750 4,375,720 2,402,385
New guarantee contracts originated 1,384,484 676,224 980,980
Guarantee liabilities derecognized and other adjustments in the current period (including repayments of loans and guarantee payments) (2,364,552) (2,830,662) (2,201,596)
Remeasurements 5,264,775 6,501,258 7,593,435
Ending balance 3,623,763 3,230,750 4,375,720
Financial guarantee contracts [member] | Accumulated Impairment [Member] | Stage 1 [member] | — From stage 1 to stage 2      
Movement Of Gross Carrying Amount Of Financing Guarantee Commitments [Line Items]      
Transfers financial assets Stage (4,087,051) (5,805,478) (4,514,480)
Financial guarantee contracts [member] | Accumulated Impairment [Member] | Stage 1 [member] | — From stage 2 to stage 1      
Movement Of Gross Carrying Amount Of Financing Guarantee Commitments [Line Items]      
Transfers financial assets Stage 195,357 313,688 114,996
Financial guarantee contracts [member] | Accumulated Impairment [Member] | Stage 2 [member]      
Movement Of Gross Carrying Amount Of Financing Guarantee Commitments [Line Items]      
Beginning balance 954,782 1,387,649 294,724
Guarantee liabilities derecognized and other adjustments in the current period (including repayments of loans and guarantee payments) (4,744,347) (6,733,874) (4,336,572)
Remeasurements 492,087 809,217 1,030,013
Ending balance 594,216 954,782 1,387,649
Financial guarantee contracts [member] | Accumulated Impairment [Member] | Stage 2 [member] | — From stage 1 to stage 2      
Movement Of Gross Carrying Amount Of Financing Guarantee Commitments [Line Items]      
Transfers financial assets Stage 4,087,051 5,805,478 4,514,480
Financial guarantee contracts [member] | Accumulated Impairment [Member] | Stage 2 [member] | — From stage 2 to stage 1      
Movement Of Gross Carrying Amount Of Financing Guarantee Commitments [Line Items]      
Transfers financial assets Stage ¥ (195,357) ¥ (313,688) ¥ (114,996)