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CECL (Details 16) SFr in Millions | 6 Months Ended
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Jun. 30, 2022 CHF (SFr)
Other financial assets, held at amortized cost, Allowance for Credit Loss [Line Items] |
Purchases | SFr 381

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

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