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Loans - Financing Receivable, Modified - Modification to Borrowers (Details) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2025 | Mar. 31, 2024
Financing Receivable, Past Due [Line Items] |  |
Total loans modified | $ 1,116 | $ 1,183
% of total class of receivables | 0.35% | 0.38%
Interest rate reduction |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans modified | $ 247 | $ 270
Term Extension |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans modified | 447 | 459
Principal balance reduction |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans modified | 9 | 9
Interest Rate Reduction and Term Extension |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans modified | 273 | 307
Other |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans modified | 140 | 138
Credit Card: |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans modified | $ 232 | $ 275
% of total class of receivables | 0.15% | 0.18%
Credit Card: | Interest rate reduction |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans modified | $ 228 | $ 270
Credit Card: | Term Extension |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans modified | 0 | 0
Credit Card: | Principal balance reduction |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans modified | 0 | 0
Credit Card: | Interest Rate Reduction and Term Extension |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans modified | 4 | 5
Credit Card: | Other |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans modified | 0 | 0
Credit Card: | Domestic Card |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans modified | $ 175 | $ 221
% of total class of receivables | 0.12% | 0.15%
Credit Card: | Domestic Card | Interest rate reduction |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans modified | $ 171 | $ 216
Weighted-average interest rate reduction | 19.38% | 19.99%
Credit Card: | Domestic Card | Term Extension |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans modified | $ 0 | $ 0
Payment delay duration (in months) | 12 months | 12 months
Credit Card: | Domestic Card | Principal balance reduction |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans modified | $ 0 | $ 0
Principal balance reduction | 0 | 0
Credit Card: | Domestic Card | Interest Rate Reduction and Term Extension |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans modified | 4 | 5
Credit Card: | Domestic Card | Other |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans modified | 0 | 0
Credit Card: | International card businesses |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans modified | $ 57 | $ 54
% of total class of receivables | 0.83% | 0.80%
Credit Card: | International card businesses | Interest rate reduction |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans modified | $ 57 | $ 54
Weighted-average interest rate reduction | 25.30% | 26.12%
Credit Card: | International card businesses | Term Extension |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans modified | $ 0 | $ 0
Payment delay duration (in months) | 0 months | 0 months
Credit Card: | International card businesses | Principal balance reduction |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans modified | $ 0 | $ 0
Principal balance reduction | 0 | 0
Credit Card: | International card businesses | Interest Rate Reduction and Term Extension |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans modified | 0 | 0
Credit Card: | International card businesses | Other |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans modified | 0 | 0
Consumer Banking: |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans modified | $ 315 | $ 292
% of total class of receivables | 0.40% | 0.39%
Consumer Banking: | Interest rate reduction |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans modified | $ 0 | $ 0
Consumer Banking: | Term Extension |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans modified | 36 | 8
Consumer Banking: | Principal balance reduction |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans modified | 9 | 9
Consumer Banking: | Interest Rate Reduction and Term Extension |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans modified | 269 | 274
Consumer Banking: | Other |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans modified | 1 | 1
Consumer Banking: | Auto |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans modified | $ 312 | $ 290
% of total class of receivables | 0.40% | 0.39%
Consumer Banking: | Auto | Interest rate reduction |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans modified | $ 0 | $ 0
Weighted-average interest rate reduction | 9.03% | 8.65%
Consumer Banking: | Auto | Term Extension |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans modified | $ 33 | $ 6
Payment delay duration (in months) | 6 months | 6 months
Consumer Banking: | Auto | Principal balance reduction |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans modified | $ 9 | $ 9
Principal balance reduction | 0 | 0
Consumer Banking: | Auto | Interest Rate Reduction and Term Extension |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans modified | 269 | 274
Consumer Banking: | Auto | Other |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans modified | 1 | 1
Consumer Banking: | Retail banking |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans modified | $ 3 | $ 2
% of total class of receivables | 0.21% | 0.14%
Consumer Banking: | Retail banking | Interest rate reduction |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans modified | $ 0 | $ 0
Weighted-average interest rate reduction | 0.00% | 0.00%
Consumer Banking: | Retail banking | Term Extension |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans modified | $ 3 | $ 2
Payment delay duration (in months) | 5 months | 10 months
Consumer Banking: | Retail banking | Principal balance reduction |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans modified | $ 0 | $ 0
Principal balance reduction | 0 | 0
Consumer Banking: | Retail banking | Interest Rate Reduction and Term Extension |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans modified | 0 | 0
Consumer Banking: | Retail banking | Other |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans modified | 0 | 0
Commercial Banking: |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans modified | $ 569 | $ 616
% of total class of receivables | 0.65% | 0.69%
Commercial Banking: | Interest rate reduction |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans modified | $ 19 | $ 0
Commercial Banking: | Term Extension |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans modified | 411 | 451
Commercial Banking: | Principal balance reduction |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans modified | 0 | 0
Commercial Banking: | Interest Rate Reduction and Term Extension |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans modified | 0 | 28
Commercial Banking: | Other |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans modified | 139 | 137
Commercial Banking: | Commercial and multifamily real estate |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans modified | $ 245 | $ 435
% of total class of receivables | 0.77% | 1.27%
Commercial Banking: | Commercial and multifamily real estate | Interest rate reduction |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans modified | $ 3 | $ 0
Weighted-average interest rate reduction | 0.85% | 0.79%
Commercial Banking: | Commercial and multifamily real estate | Term Extension |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans modified | $ 210 | $ 316
Payment delay duration (in months) | 11 months | 6 months
Commercial Banking: | Commercial and multifamily real estate | Principal balance reduction |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans modified | $ 0 | $ 0
Principal balance reduction | 0 | 0
Commercial Banking: | Commercial and multifamily real estate | Interest Rate Reduction and Term Extension |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans modified | 0 | 28
Commercial Banking: | Commercial and multifamily real estate | Other |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans modified | 32 | 91
Commercial Banking: | Commercial and industrial |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans modified | $ 324 | $ 181
% of total class of receivables | 0.58% | 0.33%
Commercial Banking: | Commercial and industrial | Interest rate reduction |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans modified | $ 16 | $ 0
Weighted-average interest rate reduction | 0.25% | 0.00%
Commercial Banking: | Commercial and industrial | Term Extension |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans modified | $ 201 | $ 135
Payment delay duration (in months) | 21 months | 12 months
Commercial Banking: | Commercial and industrial | Principal balance reduction |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans modified | $ 0 | $ 0
Principal balance reduction | 0 | 15
Commercial Banking: | Commercial and industrial | Interest Rate Reduction and Term Extension |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans modified | 0 | 0
Commercial Banking: | Commercial and industrial | Other |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans modified | $ 107 | $ 46

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