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FVM - Level 3 instruments: Sensitivity to changes in unobservable input assumptions (Detail) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Jun. 30, 2021 | Mar. 31, 2021 | Dec. 31, 2020
Disclosure Of Sensitivity Analysis Of Fair Value Measurement To Changes In Unobservable Inputs Assets And Liabilities [Line Items] |  |  |
Favorable changes | $ 852 | $ 861 | $ 794
Unfavorable changes | (782) | (779) | (768)
Traded loans, loans designated at fair value, loan commitments and guarantees |  |  |
Disclosure Of Sensitivity Analysis Of Fair Value Measurement To Changes In Unobservable Inputs Assets And Liabilities [Line Items] |  |  |
Favorable changes | 22 | 26 | 29
Unfavorable changes | (13) | (21) | (28)
Securities financing transactions |  |  |
Disclosure Of Sensitivity Analysis Of Fair Value Measurement To Changes In Unobservable Inputs Assets And Liabilities [Line Items] |  |  |
Favorable changes | 69 | 71 | 40
Unfavorable changes | (68) | (51) | (52)
Auction rate securities |  |  |
Disclosure Of Sensitivity Analysis Of Fair Value Measurement To Changes In Unobservable Inputs Assets And Liabilities [Line Items] |  |  |
Favorable changes | 114 | 88 | 105
Unfavorable changes | (114) | (88) | (105)
Asset-backed securities |  |  |
Disclosure Of Sensitivity Analysis Of Fair Value Measurement To Changes In Unobservable Inputs Assets And Liabilities [Line Items] |  |  |
Favorable changes | 48 | 50 | 41
Unfavorable changes | (34) | (40) | (41)
Equity instruments |  |  |
Disclosure Of Sensitivity Analysis Of Fair Value Measurement To Changes In Unobservable Inputs Assets And Liabilities [Line Items] |  |  |
Favorable changes | 150 | 127 | 129
Unfavorable changes | (120) | (99) | (96)
Interest rate derivative contracts, net |  |  |
Disclosure Of Sensitivity Analysis Of Fair Value Measurement To Changes In Unobservable Inputs Assets And Liabilities [Line Items] |  |  |
Favorable changes | 25 | 38 | 11
Unfavorable changes | (14) | (23) | (16)
Credit derivative contracts, net |  |  |
Disclosure Of Sensitivity Analysis Of Fair Value Measurement To Changes In Unobservable Inputs Assets And Liabilities [Line Items] |  |  |
Favorable changes | 8 | 10 | 10
Unfavorable changes | (10) | (10) | (14)
Foreign exchange derivative contracts, net |  |  |
Disclosure Of Sensitivity Analysis Of Fair Value Measurement To Changes In Unobservable Inputs Assets And Liabilities [Line Items] |  |  |
Favorable changes | 15 | 17 | 20
Unfavorable changes | (9) | (11) | (15)
Equity / index derivative contracts, net |  |  |
Disclosure Of Sensitivity Analysis Of Fair Value Measurement To Changes In Unobservable Inputs Assets And Liabilities [Line Items] |  |  |
Favorable changes | 344 | 358 | 318
Unfavorable changes | (324) | (344) | (294)
Other |  |  |
Disclosure Of Sensitivity Analysis Of Fair Value Measurement To Changes In Unobservable Inputs Assets And Liabilities [Line Items] |  |  |
Favorable changes | 58 | 77 | 91
Unfavorable changes | $ (77) | $ (92) | $ (107)

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- Definition The amount of decrease in the fair value measurement of assets due to a change in multiple unobservable inputs to reflect reasonably possible alternative assumptions. + References No definition available. + Details
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- Definition The amount of increase in the fair value measurement of assets due to a change in multiple unobservable inputs to reflect reasonably possible alternative assumptions. + References No definition available. + Details
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