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Offsetting financial assets (Detail) - USD ($) $ in Billions | Jun. 30, 2023 | Mar. 31, 2023 | Dec. 31, 2022
--- | --- | --- | ---
Derivative financial instruments |  |  |
Disclosure Of Offsetting Of Financial Assets [Line Items] |  |  |
Assets based on IFRS netting | $ 185.9 | $ 114.3 | $ 150.1
Further netting potential not recognized on the balance sheet | (170.0) | (105.4) | (139.4)
of which: netting of recognized financial liabilities | (140.0) | (84.9) | (110.9)
of which: netting with collateral received | (30.0) | (20.5) | (28.5)
Assets, after consideration of further netting potential | 15.9 | 8.8 | 10.7
Cash collateral receivables on derivative instruments |  |  |
Disclosure Of Offsetting Of Financial Assets [Line Items] |  |  |
Assets based on IFRS netting | 54.3 | 32.7 | 35.0
Further netting potential not recognized on the balance sheet | (34.1) | (18.6) | (22.9)
of which: netting of recognized financial liabilities | (30.4) | (15.6) | (20.9)
of which: netting with collateral received | (3.8) | (3.0) | (1.9)
Assets, after consideration of further netting potential | 20.2 | $ 14.1 | $ 12.1
Cash collateral receivables on derivative instruments | Credit Suisse |  |  |
Disclosure Of Offsetting Of Financial Assets [Line Items] |  |  |
Assets based on IFRS netting | $ 19.3 |  |

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