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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, 2020 | Sep. 30, 2019 | Sep. 30, 2020 | Sep. 30, 2019
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Amounts Recognized in Noninterest Income | $ 7 | $ 190 | $ 541 | $ 357
Economic hedges | Foreign exchange and interest rate products | Customer interest rate contracts |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Amounts Recognized in Noninterest Income | 7 | 196 | 1,276 | 850
Economic hedges | Foreign exchange and interest rate products | Customer foreign exchange contracts |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Amounts Recognized in Noninterest Income | 80 | (81) | 73 | (162)
Economic hedges | Foreign exchange and interest rate products | Derivative transactions to hedge interest rate risk |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Amounts Recognized in Noninterest Income | 1 | (182) | (1,245) | (809)
Economic hedges | Foreign exchange and interest rate products | Derivative transactions to hedge foreign exchange risk |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Amounts Recognized in Noninterest Income | (126) | 130 | (77) | 224
Economic hedges | Foreign exchange and interest rate products | Other derivative contracts |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Amounts Recognized in Noninterest Income | 26 | 0 | (30) | 0
Economic hedges | Foreign exchange and interest rate products | Derivative transactions to hedge other derivative risk |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Amounts Recognized in Noninterest Income | (25) | 0 | 32 | 0
Economic hedges | Mortgage banking fees | Residential loan commitments |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Amounts Recognized in Noninterest Income | 36 | 6 | 190 | 22
Economic hedges | Mortgage banking fees | Derivative contracts used to hedge residential loan commitments |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Amounts Recognized in Noninterest Income | 6 | 29 | (13) | 24
Economic hedges | Mortgage banking fees | Derivative contracts used to hedge residential MSRs |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Amounts Recognized in Noninterest Income | $ 2 | $ 92 | $ 335 | $ 208

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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=121590274&loc=SL5618551-113959 + Details
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