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Fee-Based Revenue from Contracts with Customers - Asset Management Group Noninterest Income Disaggregation (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2020 | Jun. 30, 2019 | Jun. 30, 2020 | Jun. 30, 2019
Disaggregation of Revenue [Line Items] |  |  |  |
Noninterest income | $ 1,549 | $ 1,717 | $ 3,374 | $ 3,303
Asset Management Group [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Noninterest income | 204 | 286 | 408 | 503
Asset Management Group [Member] | In-Scope [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Noninterest income | 199 | 221 | 400 | 433
Asset Management Group [Member] | Out-of-Scope [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Noninterest income | 5 | 65 | 8 | 70
Asset Management Group [Member] | Personal [Member] | In-Scope [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Noninterest income | 151 | 157 | 301 | 304
Asset Management Group [Member] | Institutional [Member] | In-Scope [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Noninterest income | $ 48 | $ 64 | $ 99 | $ 129

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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=116637391&loc=SL114874048-224260 + Details
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