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Loans - TDR - Subsequent Defaults (Details) $ in Millions | 3 Months Ended
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Mar. 31, 2022 USD ($) contract
Financing Receivable, Troubled Debt Restructuring [Line Items] |
Number of Contracts | contract | 24,491
Total Loans | $ | $ 94
Credit Card |
Financing Receivable, Troubled Debt Restructuring [Line Items] |
Number of Contracts | contract | 22,519
Total Loans | $ | $ 30
Consumer Banking |
Financing Receivable, Troubled Debt Restructuring [Line Items] |
Number of Contracts | contract | 1,971
Total Loans | $ | $ 33
Consumer Banking | Auto |
Financing Receivable, Troubled Debt Restructuring [Line Items] |
Number of Contracts | contract | 1,971
Total Loans | $ | $ 33
Consumer Banking | Retail banking |
Financing Receivable, Troubled Debt Restructuring [Line Items] |
Number of Contracts | contract | 0
Total Loans | $ | $ 0
Commercial Banking |
Financing Receivable, Troubled Debt Restructuring [Line Items] |
Number of Contracts | contract | 1
Total Loans | $ | $ 31
Commercial Banking | Commercial and industrial |
Financing Receivable, Troubled Debt Restructuring [Line Items] |
Number of Contracts | contract | 1
Total Loans | $ | $ 31
Domestic credit card: | Credit Card |
Financing Receivable, Troubled Debt Restructuring [Line Items] |
Number of Contracts | contract | 6,012
Total Loans | $ | $ 11
International card businesses: | Credit Card |
Financing Receivable, Troubled Debt Restructuring [Line Items] |
Number of Contracts | contract | 16,507
Total Loans | $ | $ 19

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