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CECL (Details 4) - CHF (SFr) SFr in Millions | 6 Months Ended
--- | ---
Jun. 30, 2023 | Jun. 30, 2022
Other financial assets, Held At Amortized Cost, Allowance for Credit Losses [Roll Forward] |  |
Cash and due from banks, held at amortized cost, Allowance for Credit Loss, Beginning Balance | SFr (0) |
Interest-bearing deposits with banks, held at amortized cost, Allowance for Credit Loss, Beginning Balance | (0) |
Securities purchased under resale agreements and securities borrowing transactions, held at amortized cost, Allowance for Credit Loss, Beginning Balance | (0) |
Brokerage receivables, held at amortized cost, Allowance for Credit Loss, Beginning Balance | 4,081 |
Other assets, held at amortized cost, Allowance for Credit Loss, Beginning Balance | 37 |
Other financial assets, held at amortized cost, Allowance for Credit Loss, Beginning Balance | 4,118 | SFr 4,214
Other financial assets, Current-period provision for expected credit losses | 12 | (147)
Other financial assets, Gross write-offs | (4,031) | (4)
Other financial assets, Recovery | 0 | 0
Other financial assets, Net write-offs | (4,031) | (4)
Other financial assets, Foreign currency translation impact and other adjustments, net | (56) | 186
Cash and due from banks, held at amortized cost, Allowance for Credit Loss, Ending Balance | 4 |
Interest-bearing deposits with banks, held at amortized cost, Allowance for Credit Loss, Ending Balance | (0) |
Securities purchased under resale agreements and securities borrowing transactions, held at amortized cost, Allowance for Credit Loss, Ending Balance | (0) |
Brokerage receivables, held at amortized cost, Allowance for Credit Loss, Ending Balance | (0) |
Other assets, held at amortized cost, Allowance for Credit Loss, Ending Balance | 39 |
Other financial assets, held at amortized cost, Allowance for Credit Loss, Ending Balance | 43 | 4,249
Other financial assets, individually evaluated | 20 | 4,230
Other financial assets, collectively evaluated | SFr 23 | 19
Archegos Capital Management [Member] |  |
Other financial assets, Held At Amortized Cost, Allowance for Credit Losses [Roll Forward] |  |
Other financial assets, Current-period provision for expected credit losses |  | SFr (155)

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