v3.26.1
Loans - Credit Card Delinquency Status (Details) - USD ($)
$ in Millions
 6 Months Ended 12 Months Ended
Jun. 30, 2026
Dec. 31, 2025
Financing Receivable, Allowance for Credit Loss [Line Items]    
Total $ 457,168 $ 453,622
Term loan by year, year 1 29  
Term loan by year, year 2 502  
Term loan by year, year 3 452  
Term loan by year, year 4 295  
Term loan by year, year 5 263  
Prior 241  
Total Term Loans 1,782  
Credit Card:    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Total 275,408 279,570
Term loan by year, year 1 0  
Term loan by year, year 2 55  
Term loan by year, year 3 81  
Term loan by year, year 4 63  
Term loan by year, year 5 27  
Prior 11  
Total Term Loans 237  
Personal loans—Delinquency status:    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Revolving Loans 0 0
Revolving Loans Converted to Term 0 0
Total 8,619 9,499
Term loan by year, year 1 1,708 4,077
Term loan by year, year 2 3,169 2,782
Term loan by year, year 3 2,003 1,669
Term loan by year, year 4 1,134 684
Term loan by year, year 5 441 216
Prior 164 71
Total Term Loans 8,619 9,499
Domestic credit card: | Credit Card:    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Revolving Loans 256,919 260,506
Revolving Loans Converted to Term 2,086 1,897
Total 259,005 262,403
International card businesses: | Credit Card:    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Revolving Loans 7,727 7,610
Revolving Loans Converted to Term 57 58
Total 7,784 7,668
Current | Personal loans—Delinquency status:    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Revolving Loans 0 0
Revolving Loans Converted to Term 0 0
Total 8,468 9,325
Term loan by year, year 1 1,704 4,050
Term loan by year, year 2 3,131 2,727
Term loan by year, year 3 1,957 1,614
Term loan by year, year 4 1,095 658
Term loan by year, year 5 424 208
Prior 157 68
Total Term Loans 8,468 9,325
Current | Domestic credit card: | Credit Card:    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Revolving Loans 248,429 250,332
Revolving Loans Converted to Term 1,806 1,600
Total 250,235 251,932
Current | International card businesses: | Credit Card:    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Revolving Loans 7,369 7,260
Revolving Loans Converted to Term 45 44
Total 7,414 7,304
30-59 days | Personal loans—Delinquency status:    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Revolving Loans 0 0
Revolving Loans Converted to Term 0 0
Total 61 72
Term loan by year, year 1 2 14
Term loan by year, year 2 16 22
Term loan by year, year 3 19 22
Term loan by year, year 4 15 10
Term loan by year, year 5 6 3
Prior 3 1
Total Term Loans 61 72
30-59 days | Domestic credit card: | Credit Card:    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Revolving Loans 2,587 2,925
Revolving Loans Converted to Term 95 90
Total 2,682 3,015
30-59 days | International card businesses: | Credit Card:    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Revolving Loans 117 112
Revolving Loans Converted to Term 5 5
Total 122 117
60-89 days | Personal loans—Delinquency status:    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Revolving Loans 0 0
Revolving Loans Converted to Term 0 0
Total 46 53
Term loan by year, year 1 1 8
Term loan by year, year 2 13 17
Term loan by year, year 3 14 16
Term loan by year, year 4 11 8
Term loan by year, year 5 5 3
Prior 2 1
Total Term Loans 46 53
60-89 days | Domestic credit card: | Credit Card:    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Revolving Loans 1,831 2,233
Revolving Loans Converted to Term 71 75
Total 1,902 2,308
60-89 days | International card businesses: | Credit Card:    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Revolving Loans 73 80
Revolving Loans Converted to Term 3 3
Total 76 83
Greater than 90 days | Personal loans—Delinquency status:    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Revolving Loans 0 0
Revolving Loans Converted to Term 0 0
Total 44 49
Term loan by year, year 1 1 5
Term loan by year, year 2 9 16
Term loan by year, year 3 13 17
Term loan by year, year 4 13 8
Term loan by year, year 5 6 2
Prior 2 1
Total Term Loans 44 49
Greater than 90 days | Domestic credit card: | Credit Card:    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Revolving Loans 4,072 5,016
Revolving Loans Converted to Term 114 132
Total 4,186 5,148
Greater than 90 days | International card businesses: | Credit Card:    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Revolving Loans 168 158
Revolving Loans Converted to Term 4 6
Total $ 172 $ 164