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Consolidated statements of changes in equity (Parenthetical) SFr in Millions	12 Months Ended
	Dec. 31, 2022 CHF (SFr)
Bank
Additional paid-in capital increase, capital contribution	SFr 3,890

X

- Definition

The amount of the increase in additional paid-in capital due to capital contributions.

+ References

No definition available.

+ Details

Name:	cs_AdditionalPaidinCapitalIncreaseCapitalContribution
Namespace Prefix:	cs_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

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- Details

Name:	dei_LegalEntityAxis=cs_ConsolidatedBankMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: