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v3.19.3.a.u2

Loans - TDR - Subsequent Defaults of Completed TDR Modifications (Detail) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2019 USD ($) Contract | Dec. 31, 2018 USD ($) Contract | Dec. 31, 2017 USD ($) Contract
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Number of Contracts | Contract | 122,156 | 129,120 | 116,523
Total Loans | $ | $ 306 | $ 437 | $ 594
Credit Card |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Number of Contracts | Contract | 116,556 | 122,084 | 106,762
Total Loans | $ | $ 209 | $ 232 | $ 204
Consumer Banking |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Number of Contracts | Contract | 5,599 | 7,009 | 9,515
Total Loans | $ | $ 72 | $ 82 | $ 120
Consumer Banking | Auto |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Number of Contracts | Contract | 5,575 | 6,980 | 9,446
Total Loans | $ | $ 70 | $ 79 | $ 109
Consumer Banking | Home loan |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Number of Contracts | Contract | 0 | 3 | 28
Total Loans | $ | $ 0 | $ 1 | $ 7
Consumer Banking | Retail banking |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Number of Contracts | Contract | 24 | 26 | 41
Total Loans | $ | $ 2 | $ 2 | $ 4
Commercial Banking |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Number of Contracts | Contract | 1 | 27 | 246
Total Loans | $ | $ 25 | $ 123 | $ 270
Commercial Banking | Total commercial lending |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Number of Contracts | Contract | 1 | 27 | 244
Total Loans | $ | $ 25 | $ 123 | $ 269
Commercial Banking | Commercial and multifamily real estate |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Number of Contracts | Contract | 0 | 1 | 0
Total Loans | $ | $ 0 | $ 3 | $ 0
Commercial Banking | Commercial and industrial |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Number of Contracts | Contract | 1 | 26 | 244
Total Loans | $ | $ 25 | $ 120 | $ 269
Commercial Banking | Small-ticket commercial real estate |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Number of Contracts | Contract | 0 | 0 | 2
Total Loans | $ | $ 0 | $ 0 | $ 1
Domestic credit card | Credit Card |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Number of Contracts | Contract | 47,086 | 61,070 | 55,121
Total Loans | $ | $ 99 | $ 126 | $ 111
International card business | Credit Card |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Number of Contracts | Contract | 69,470 | 61,014 | 51,641
Total Loans | $ | $ 110 | $ 106 | $ 93

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