v3.26.3
Allowance for Credit Losses - Summary (Details) - USD ($)
$ in Millions
 9 Months Ended 12 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Dec. 31, 2025
Dec. 30, 2025
Allowance for Credit Losses        
Beginning balance $ 25,765 $ 24,345 $ 24,345  
Gross charge-offs 8,749 8,941    
Gross recoveries collected (1,863) (1,606)    
Net charge-offs/(recoveries) 6,886 7,335    
Provision for loan losses 7,398 8,720    
Other (5) 5    
Ending balance 26,272 25,735 25,765  
Allowance for lending-related commitments        
Beginning balance 5,071 2,101 2,101  
Provision for lending-related commitments 545 862    
Other (6) 1    
Ending balance 5,610 2,964 5,071  
Total allowance for investment securities 47 105 106  
Total allowance for credit losses 31,929 28,804    
Allowance for loan losses by impairment methodology        
Asset-specific 159 217    
Portfolio-based 26,113 25,518    
Total allowance for loan losses 26,272 25,735 25,765  
Loans by impairment methodology        
Asset-specific 7,559 8,261    
Portfolio-based 1,489,600 1,361,524    
Total retained loans 1,497,159 1,369,785 1,408,905  
Allowance for lending-related commitments by impairment methodology        
Asset-specific 95 131    
Portfolio-based 5,515 2,833    
Total allowance for lending-related commitments 5,610 2,964 5,071  
Off-Balance Sheet Lending-Related Financial Instruments, Guarantees and Other Commitments [Abstract]        
Asset-specific 717 1,025    
Portfolio-based 641,956 570,953    
Total lending-related commitments 642,673 571,978    
Apple Credit Card Portfolio        
Off-Balance Sheet Lending-Related Financial Instruments, Guarantees and Other Commitments [Abstract]        
Expected period to close       24 months
CIB        
Off-Balance Sheet Lending-Related Financial Instruments, Guarantees and Other Commitments [Abstract]        
Allowance for credit losses associated with accounts receivable 119 285    
Collateral-dependent loans        
Allowance for Credit Losses        
Net charge-offs/(recoveries) 156 474    
Collateral-dependent loans        
Loans measured at fair value of collateral less cost to sell 5,032 5,235    
Consumer, excluding credit card        
Allowance for Credit Losses        
Beginning balance 1,920 1,807 1,807  
Gross charge-offs 763 814    
Gross recoveries collected (333) (410)    
Net charge-offs/(recoveries) 430 404    
Provision for loan losses 310 500    
Other 0 0    
Ending balance 1,800 1,903 1,920  
Allowance for lending-related commitments        
Beginning balance 83 82 82  
Provision for lending-related commitments (8) 2    
Other 0 0    
Ending balance 75 84 83  
Total allowance for credit losses 1,875 1,987    
Allowance for loan losses by impairment methodology        
Asset-specific (615) (621)    
Portfolio-based 2,415 2,524    
Total allowance for loan losses 1,800 1,903 1,920  
Loans by impairment methodology        
Asset-specific 3,357 3,366    
Portfolio-based 363,849 366,493    
Total retained loans 367,206 369,859 368,741  
Allowance for lending-related commitments by impairment methodology        
Asset-specific 0 0    
Portfolio-based 75 84    
Total allowance for lending-related commitments 75 84 83  
Off-Balance Sheet Lending-Related Financial Instruments, Guarantees and Other Commitments [Abstract]        
Asset-specific 0 0    
Portfolio-based 22,506 25,588    
Total lending-related commitments 22,506 25,588    
Credit card lending-related commitments not permitted to have an allowance for credit losses 25,200 22,400    
Consumer, excluding credit card | Collateral-dependent loans        
Allowance for Credit Losses        
Net charge-offs/(recoveries) 3 0    
Collateral-dependent loans        
Loans measured at fair value of collateral less cost to sell 3,357 3,316    
Credit card        
Allowance for Credit Losses        
Beginning balance 15,557 14,600 14,600  
Gross charge-offs 7,298 6,865    
Gross recoveries collected (1,403) (1,088)    
Net charge-offs/(recoveries) 5,895 5,777    
Provision for loan losses 5,899 6,731    
Other (1) 0    
Ending balance 15,560 15,554 15,557  
Allowance for lending-related commitments        
Beginning balance 2,200 0 0  
Provision for lending-related commitments 100 0    
Other 0 0    
Ending balance 2,300 0 2,200  
Total allowance for credit losses 17,860 15,554    
Allowance for loan losses by impairment methodology        
Asset-specific 0 0    
Portfolio-based 15,560 15,554    
Total allowance for loan losses 15,560 15,554 15,557  
Loans by impairment methodology        
Asset-specific 0 0    
Portfolio-based 252,697 235,475    
Total retained loans 252,697 235,475    
Allowance for lending-related commitments by impairment methodology        
Asset-specific 0 0    
Portfolio-based 2,300 0    
Total allowance for lending-related commitments 2,300 0 2,200  
Off-Balance Sheet Lending-Related Financial Instruments, Guarantees and Other Commitments [Abstract]        
Asset-specific 0 0    
Portfolio-based 25,130 601    
Total lending-related commitments 25,130 601    
Credit card lending-related commitments not permitted to have an allowance for credit losses 1,200,000 1,100,000    
Credit card | Collateral-dependent loans        
Allowance for Credit Losses        
Net charge-offs/(recoveries) 0 0    
Collateral-dependent loans        
Loans measured at fair value of collateral less cost to sell 0 0    
Wholesale        
Allowance for Credit Losses        
Beginning balance 8,288 7,938 7,938  
Gross charge-offs 688 1,262    
Gross recoveries collected (127) (108)    
Net charge-offs/(recoveries) 561 1,154    
Provision for loan losses 1,189 1,489    
Other (4) 5    
Ending balance 8,912 8,278 8,288  
Allowance for lending-related commitments        
Beginning balance 2,788 2,019 2,019  
Provision for lending-related commitments 453 860    
Other (6) 1    
Ending balance 3,235 2,880 2,788  
Total allowance for credit losses 12,147 11,158    
Allowance for loan losses by impairment methodology        
Asset-specific 774 838    
Portfolio-based 8,138 7,440    
Total allowance for loan losses 8,912 8,278 8,288  
Loans by impairment methodology        
Asset-specific 4,202 4,895    
Portfolio-based 873,054 759,556    
Total retained loans 877,256 764,451 792,367  
Allowance for lending-related commitments by impairment methodology        
Asset-specific 95 131    
Portfolio-based 3,140 2,749    
Total allowance for lending-related commitments 3,235 2,880 2,788  
Off-Balance Sheet Lending-Related Financial Instruments, Guarantees and Other Commitments [Abstract]        
Asset-specific 717 1,025    
Portfolio-based 594,320 544,764    
Total lending-related commitments 595,037 545,789    
Credit card lending-related commitments not permitted to have an allowance for credit losses 39,800 50,200    
Wholesale | Collateral-dependent loans        
Allowance for Credit Losses        
Net charge-offs/(recoveries) 153 474    
Collateral-dependent loans        
Loans measured at fair value of collateral less cost to sell 1,675 $ 1,919    
Credit card        
Allowance for Credit Losses        
Gross charge-offs 7,298   9,164  
Loans by impairment methodology        
Total retained loans 252,697   $ 247,797  
Credit card | Apple Credit Card Portfolio | Credit Concentration Risk        
Off-Balance Sheet Lending-Related Financial Instruments, Guarantees and Other Commitments [Abstract]        
Credit exposure for estimated drawn loans $ 24,000