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DERIVATIVES - Effect of Customer Derivatives and Economic Hedges on Net Income (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2021 | Sep. 30, 2020 | Sep. 30, 2021 | Sep. 30, 2020
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Amounts Recognized in Noninterest Income | $ 15 | $ 7 | $ (93) | $ 541
Economic hedges | Foreign exchange and interest rate products | Customer interest rate contracts |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Amounts Recognized in Noninterest Income | (10) | 7 | (225) | 1,276
Economic hedges | Foreign exchange and interest rate products | Derivatives hedging interest rate risk |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Amounts Recognized in Noninterest Income | 17 | 1 | 244 | (1,245)
Economic hedges | Foreign exchange and interest rate products | Customer foreign exchange contracts |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Amounts Recognized in Noninterest Income | (61) | 80 | (158) | 73
Economic hedges | Foreign exchange and interest rate products | Derivatives hedging foreign exchange risk |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Amounts Recognized in Noninterest Income | 95 | (126) | 234 | (77)
Economic hedges | Foreign exchange and interest rate products | Customer commodity contracts |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Amounts Recognized in Noninterest Income | 468 | 26 | 881 | (30)
Economic hedges | Foreign exchange and interest rate products | Commodities contracts |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Amounts Recognized in Noninterest Income | (465) | (25) | (874) | 32
Economic hedges | Mortgage banking fees | Residential loan commitments |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Amounts Recognized in Noninterest Income | (13) | 36 | (184) | 190
Economic hedges | Mortgage banking fees | Derivatives hedging residential loan commitments and mortgage loans held for sale, at fair value |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Amounts Recognized in Noninterest Income | 4 | 6 | 138 | (13)
Economic hedges | Mortgage banking fees | Derivative contracts used to hedge residential MSRs |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Amounts Recognized in Noninterest Income | $ (20) | $ 2 | $ (149) | $ 335

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- Definition Amount of increase (decrease) in the fair value of derivatives recognized in the income statement. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4A -Subparagraph (b)(1) -URI http://asc.fasb.org/extlink&oid=125515794&loc=SL5618551-113959 + Details
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