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Provisions and Contingent Provisions (Details) - Schedule of Provisions for Contingent Loan Risk - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Schedule of Provisions for Contingent Loan Risk [Line Items]    
ECL allowance, beginning balance $ 21,105 $ 44,997
Transfers from stage 1 to stage 2 4,973 2,914
Transfers from stage 1 to stage 3 642 1,099
Transfers from stage 2 to stage 3 4,244 5,036
Transfers from stage 2 to stage 1 (5,942) (7,395)
Transfers from stage 3 to stage 2 2,896 (2,857)
Transfers from stage 3 to stage 1 0 (210)
Net changes of the exposure and modifications in credit risk (9,529) (22,478)
Write-off 0 0
Other adjustments 0 (1)
ECL allowance, ending balance 18,389 21,105
Stage 1    
Schedule of Provisions for Contingent Loan Risk [Line Items]    
ECL allowance, beginning balance 10,949 26,316
Transfers from stage 1 to stage 2 (1,207) (2,645)
Transfers from stage 1 to stage 3 (43) (142)
Transfers from stage 2 to stage 3 0 0
Transfers from stage 2 to stage 1 1,058 1,858
Transfers from stage 3 to stage 2 0 0
Transfers from stage 3 to stage 1 0 3
Net changes of the exposure and modifications in credit risk (2,498) (14,442)
Write-off 0 0
Other adjustments 0 1
ECL allowance, ending balance 8,259 10,949
Stage 2    
Schedule of Provisions for Contingent Loan Risk [Line Items]    
ECL allowance, beginning balance 3,420 8,789
Transfers from stage 1 to stage 2 6,180 5,559
Transfers from stage 1 to stage 3 0 0
Transfers from stage 2 to stage 3 (1,342) (2,471)
Transfers from stage 2 to stage 1 (7,000) (9,253)
Transfers from stage 3 to stage 2 4,447 2,187
Transfers from stage 3 to stage 1 0 0
Net changes of the exposure and modifications in credit risk (1,362) (1,389)
Write-off 0 0
Other adjustments 0 (2)
ECL allowance, ending balance 4,343 3,420
Stage 3    
Schedule of Provisions for Contingent Loan Risk [Line Items]    
ECL allowance, beginning balance 6,736 9,892
Transfers from stage 1 to stage 2 0 0
Transfers from stage 1 to stage 3 685 1,241
Transfers from stage 2 to stage 3 5,586 7,507
Transfers from stage 2 to stage 1 0 0
Transfers from stage 3 to stage 2 (1,551) (5,044)
Transfers from stage 3 to stage 1 0 (213)
Net changes of the exposure and modifications in credit risk (5,669) (6,647)
Write-off 0 0
Other adjustments 0 0
ECL allowance, ending balance $ 5,787 $ 6,736