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Derivative instruments (Detail) - USD ($) $ in Millions | Jun. 30, 2023 | Mar. 31, 2023 | Dec. 31, 2022
--- | --- | --- | ---
Derivative [Line Items] |  |  |
Derivative financial assets | $ 185,949 | $ 114,251 | $ 150,108
Derivative financial liabilities | 193,147 | 116,113 | 154,906
Other notional values | 26,040,000 | 13,993,000 | 11,376,000
Notional values related to derivative financial assets and liabilities | 13,010,000 | 10,224,000 | 9,302,000
Credit Suisse |  |  |
Derivative [Line Items] |  |  |
Derivative financial assets | 63,200 |  |
Derivative financial liabilities | 66,700 |  |
Other notional values | 10,689,000 |  |
Notional values related to derivative financial assets and liabilities | 2,804,000 |  |
Interest rate |  |  |
Derivative [Line Items] |  |  |
Derivative financial assets | 63,700 | 36,700 | 39,800
Derivative financial liabilities | 62,000 | 34,700 | 37,500
Other notional values | 25,438,000 | 13,842,000 | 11,255,000
Notional values related to derivative financial assets and liabilities | 3,788,000 | 2,345,000 | 2,080,000
Notional values related to derivative financial assets and liabilities related to over-the-counter derivatives | 225,000 |  |
Credit derivative |  |  |
Derivative [Line Items] |  |  |
Derivative financial assets | 5,400 | 1,300 | 1,000
Derivative financial liabilities | 6,200 | 1,300 | 1,200
Notional values related to derivative financial assets and liabilities | 379,000 | 86,000 | 74,000
Foreign exchange |  |  |
Derivative [Line Items] |  |  |
Derivative financial assets | 74,700 | 52,200 | 85,500
Derivative financial liabilities | 76,600 | 53,300 | 88,500
Other notional values | 82,000 | 56,000 | 40,000
Notional values related to derivative financial assets and liabilities | 7,350,000 | 6,610,000 | 6,080,000
Equity / index |  |  |
Derivative [Line Items] |  |  |
Derivative financial assets | 39,700 | 21,800 | 22,200
Derivative financial liabilities | 45,300 | 24,600 | 26,100
Other notional values | 497,000 | 76,000 | 63,000
Notional values related to derivative financial assets and liabilities | 1,192,000 | 932,000 | 886,000
Commodity |  |  |
Derivative [Line Items] |  |  |
Derivative financial assets | 1,700 | 1,800 | 1,400
Derivative financial liabilities | 1,700 | 1,600 | 1,400
Other notional values | 23,000 | 19,000 | 18,000
Notional values related to derivative financial assets and liabilities | 159,000 | 146,000 | 132,000
Other |  |  |
Derivative [Line Items] |  |  |
Derivative financial assets | 800 | 400 | 200
Derivative financial liabilities | 1,300 | 600 | 100
Notional values related to derivative financial assets and liabilities | $ 140,000 | $ 106,000 | $ 50,000

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