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Fee-Based Revenue from Contracts with Customers - Retail Banking Noninterest Income Disaggregation (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2021 | Sep. 30, 2020 | Sep. 30, 2021 | Sep. 30, 2020
Disaggregation of Revenue [Line Items] |  |  |  |
Noninterest income | $ 2,341 | $ 1,797 | $ 6,299 | $ 5,171
Brokerage fees |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Noninterest income | 4 |  | 6 |
Retail Banking |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Noninterest income | 662 | 673 | 2,022 | 2,046
Retail Banking | In-Scope |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Noninterest income | 624 | 490 | 1,670 | 1,409
Retail Banking | Out-of-Scope |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Noninterest income | 38 | 183 | 352 | 637
Retail Banking | Debit card fees | In-Scope |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Noninterest income | 184 | 136 | 486 | 385
Retail Banking | Deposit account fees | In-Scope |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Noninterest income | 142 | 108 | 367 | 339
Retail Banking | Brokerage fees | In-Scope |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Noninterest income | 123 | 94 | 334 | 273
Retail Banking | Net credit card fees | In-Scope |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Noninterest income | 53 | 50 | 157 | 130
Interchange fees | 155 | 121 | 421 | 341
Credit card reward costs | 102 | 71 | 264 | 211
Retail Banking | Merchant services | In-Scope |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Noninterest income | 46 | 40 | 125 | 112
Retail Banking | Other | In-Scope |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Noninterest income | $ 76 | $ 62 | $ 201 | $ 170

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- Definition The total amount of noninterest income which may be derived from: (1) fees and commissions; (2) premiums earned; (3) insurance policy charges; (4) the sale or disposal of assets; and (5) other sources not otherwise specified. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04.13) -URI http://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260 + Details
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