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Loans - 90+ Day Delinquent Loans Accruing Interest and Nonperforming Loans (Detail) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2020 | Jun. 30, 2020 | Dec. 31, 2019
Financing Receivable, Past Due [Line Items] |  |  |
90 Days Past Due and Accruing | $ 1,610 | $ 1,610 | $ 2,407
Nonperforming Loans | 967 | 967 | $ 983
Nonperforming Loans Without an Allowance | $ 324 | $ 324 |
Percentage, 90 Days Past Due and Accruing | 0.60% | 0.60% | 0.90%
Percentage, Nonperforming Loans | 0.40% | 0.40% | 0.40%
Percentage, Nonperforming Loans Without an Allowance | 0.10% | 0.10% |
Interest income for loans classified as nonperforming | $ 5 | $ 11 |
Credit Card |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
90 Days Past Due and Accruing | 1,596 | 1,596 | $ 2,407
Nonperforming Loans | 23 | 23 | 25
Nonperforming Loans Without an Allowance | 0 | 0 |
Credit Card | Domestic credit card: |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
90 Days Past Due and Accruing | 1,502 | 1,502 | 2,277
Nonperforming Loans Without an Allowance | 0 | 0 |
Credit Card | International card businesses: |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
90 Days Past Due and Accruing | 94 | 94 | 130
Nonperforming Loans | 23 | 23 | 25
Nonperforming Loans Without an Allowance | 0 | 0 |
Consumer Banking |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
90 Days Past Due and Accruing | 0 | 0 | 0
Nonperforming Loans | 284 | 284 | 510
Nonperforming Loans Without an Allowance | 2 | 2 |
Consumer Banking | Auto |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
90 Days Past Due and Accruing | 0 | 0 | 0
Nonperforming Loans | 260 | 260 | 487
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 | 0
Nonperforming Loans | 24 | 24 | 23
Nonperforming Loans Without an Allowance | 2 | 2 |
Commercial Banking |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
90 Days Past Due and Accruing | 14 | 14 | 0
Nonperforming Loans | 660 | 660 | 448
Nonperforming Loans Without an Allowance | 322 | 322 |
Commercial Banking | Commercial and multifamily real estate |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
90 Days Past Due and Accruing | 14 | 14 | 0
Nonperforming Loans | 167 | 167 | 38
Nonperforming Loans Without an Allowance | 162 | 162 |
Commercial Banking | Commercial and industrial |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
90 Days Past Due and Accruing | 0 | 0 | 0
Nonperforming Loans | 493 | 493 | $ 410
Nonperforming Loans Without an Allowance | $ 160 | $ 160 |

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