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Loans - 90+ Day Delinquent Loans Accruing Interest and Nonperforming Loans (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021
Financing Receivable, Past Due [Line Items] |  |
90 Days Past Due and Accruing | $ 2,240 | $ 1,195
Nonperforming Loans | 1,344 | 1,100
Nonperforming Loans Without an Allowance | $ 548 | $ 529
Percentage, 90 Days Past Due and Accruing | 0.72% | 0.43%
Percentage, Nonperforming Loans | 0.43% | 0.40%
Percentage, Nonperforming Loans Without an Allowance | 0.18% | 0.19%
Interest income for loans classified as nonperforming | $ 66 | $ 43
Credit Card |  |
Financing Receivable, Past Due [Line Items] |  |
90 Days Past Due and Accruing | 2,240 | 1,192
Nonperforming Loans | 9 | 10
Nonperforming Loans Without an Allowance | 0 | 0
Credit Card | Domestic credit card: |  |
Financing Receivable, Past Due [Line Items] |  |
90 Days Past Due and Accruing | 2,135 | 1,110
Nonperforming Loans Without an Allowance | 0 | 0
Credit Card | International card businesses: |  |
Financing Receivable, Past Due [Line Items] |  |
90 Days Past Due and Accruing | 105 | 82
Nonperforming Loans | 9 | 10
Nonperforming Loans Without an Allowance | 0 | 0
Consumer Banking |  |
Financing Receivable, Past Due [Line Items] |  |
90 Days Past Due and Accruing | 0 | 0
Nonperforming Loans | 634 | 391
Nonperforming Loans Without an Allowance | 8 | 4
Consumer Banking | Auto |  |
Financing Receivable, Past Due [Line Items] |  |
90 Days Past Due and Accruing | 0 | 0
Nonperforming Loans | 595 | 344
Nonperforming Loans Without an Allowance | 0 | 0
Consumer Banking | Retail banking |  |
Financing Receivable, Past Due [Line Items] |  |
90 Days Past Due and Accruing | 0 | 0
Nonperforming Loans | 39 | 47
Nonperforming Loans Without an Allowance | 8 | 4
Commercial Banking |  |
Financing Receivable, Past Due [Line Items] |  |
90 Days Past Due and Accruing | 0 | 3
Nonperforming Loans | 701 | 699
Nonperforming Loans Without an Allowance | 540 | 525
Commercial Banking | Commercial and multifamily real estate |  |
Financing Receivable, Past Due [Line Items] |  |
90 Days Past Due and Accruing | 0 | 3
Nonperforming Loans | 271 | 383
Nonperforming Loans Without an Allowance | 246 | 268
Commercial Banking | Commercial And Industrial [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
90 Days Past Due and Accruing | 0 | 0
Nonperforming Loans | 430 | 316
Nonperforming Loans Without an Allowance | $ 294 | $ 257

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