v3.25.4
Loans - Summary of Changes in Allowance for Credit Losses (Detail) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Allowance for loan losses    
Beginning balance $ 4,666 $ 5,050
Charge-offs (1,457) (1,640)
Recoveries 207 225
Net (charge-offs)/recoveries (1,250) (1,415)
Provision (1,154) 1,248
Other (114) (217)
Ending balance $ 2,148 $ 4,666
Allowance ratio 1.00% 2.40%
Net charge-off ratio 0.60% 0.80%
Allowance for losses on lending commitments    
Beginning balance $ 674 $ 620
Provision 52 56
Other 5 (2)
Ending balance 731 674
Wholesale    
Allowance for loan losses    
Beginning balance 2,099 2,576
Charge-offs (104) (169)
Recoveries 42 121
Net (charge-offs)/recoveries (62) (48)
Provision 225 (292)
Other (114) (137)
Ending balance $ 2,148 $ 2,099
Allowance ratio 1.00% 1.20%
Net charge-off ratio 0.00% 0.00%
Allowance for losses on lending commitments    
Beginning balance $ 674 $ 620
Provision 52 56
Other 5 (2)
Ending balance 731 674
Consumer    
Allowance for loan losses    
Beginning balance 2,567 2,474
Charge-offs (1,353) (1,471)
Recoveries 165 104
Net (charge-offs)/recoveries (1,188) (1,367)
Provision (1,379) 1,540
Other 0 (80)
Ending balance $ 0 $ 2,567
Allowance ratio   13.10%
Net charge-off ratio 6.10% 7.60%
Allowance for losses on lending commitments    
Beginning balance $ 0 $ 0
Provision 0 0
Other 0 0
Ending balance $ 0 $ 0