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Other assets and other liabilities (Details 2) - CHF (SFr) SFr in Millions | Jun. 30, 2023 | Dec. 31, 2022
--- | --- | ---
Right-of-use assets [Abstract] |  |
Premises, equipment and right-of-use assets | SFr 3,684 | SFr 5,799

X
- References No definition available. + Details
Name: | cs_PremisesEquipmentAndRightofuseAssets
Namespace Prefix: | cs_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- References No definition available. + Details
Name: | cs_RightofuseAssetsAbstract
Namespace Prefix: | cs_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration