XML 144 R133.htm IDEA: XBRL DOCUMENT v3.23.3

Litigation (Details) $ in Thousands, € in Millions, £ in Millions, SFr in Millions	6 Months Ended
	Jun. 30, 2023 CHF (SFr)	Jun. 30, 2023 USD ($)	Jun. 30, 2023 EUR (€)	Jun. 30, 2023 GBP (£)
Pending Litigation
Litigation disclosures
Net litigation provisions recorded | SFr	SFr 1,480
Pending Litigation | Minimum
Litigation provisions
Range of possible losses that are not covered by existing provisions | SFr	0
Pending Litigation | Maximum
Litigation provisions
Range of possible losses that are not covered by existing provisions | SFr	SFr 2,700
Mozambique matter | United States Department of Justice (DOJ) | Penalty, basic [Member]
Litigation disclosures
of which fines		$ 175,500
Mozambique matter | United States Department of Justice (DOJ) | Penalty, disgorgement [Member]
Litigation disclosures
of which fines		34,000
Mozambique matter | United States Department of Justice (DOJ) | Penalty, pre-judgment interest [Member]
Litigation disclosures
of which fines		65,000
Mozambique matter | United States Department of Justice (DOJ) | Minimum | Penalty, basic [Member]
Litigation disclosures
Loss contingency, damages paid, value		175,600
Mozambique matter | US District Court for the Eastern District of New York (EDNY) | Penalty, final [Member]
Litigation disclosures
of which restitution		22,600
Mozambique matter | US Department of Justice (DOJ) and Securities and Exchange Commission (SEC)
Litigation disclosures
of which fines		$ 275,000
Credit Suisse Securities (USA) LLC | Mortgage-related matters - Government and regulatory related | United States Department of Justice (DOJ)
Litigation disclosures
Litigation, Increase of Consumer Relief per Annum	5.00%	5.00%	5.00%	5.00%
DLJ Mortgage Capital, Inc. | Mortgage-related matters - Repurchase litigations | Home Equity Mortgage Trust Series 2006-5 | New York state court | Minimum
Litigation disclosures
Estimated damages		$ 500,000
DLJ Mortgage Capital, Inc. | Mortgage-related matters - Repurchase litigations | Home Equity Mortgage Trust Series 2006-1, 2006-3 and 2006-4 | New York state court | Minimum
Litigation disclosures
Estimated damages		730,000
DLJ Mortgage Capital, Inc. | Mortgage-related matters - Repurchase litigations | Home Equity Loan Trust Series 2006-HE7 | New York state court | Minimum
Litigation disclosures
Estimated damages		374,000
DLJ Mortgage Capital, Inc. | Mortgage-related matters - Repurchase litigations | Home Equity Asset Trust Series 2006-8 | New York state court | Minimum
Litigation disclosures
Estimated damages		436,000
DLJ Mortgage Capital, Inc. | Mortgage-related matters - Repurchase litigations | Home Equity Asset Trust Series 2007-1 | New York state court | Minimum
Litigation disclosures
Estimated damages		420,000
DLJ Mortgage Capital, Inc. | Mortgage-related matters - Repurchase litigations | Home Equity Asset Trust Series 2007-2 | New York state court | Minimum
Litigation disclosures
Estimated damages		495,000
DLJ Mortgage Capital, Inc. | Mortgage-related matters - Repurchase litigations | Home Equity Asset Trust Series 2007-3 | Minnesota state court | Minimum
Litigation disclosures
Estimated damages		206,000
DLJ Mortgage Capital, Inc. | Mortgage-related matters - Repurchase litigations | Home Equity Mortgage Trust Series 2006-1, 2006-3, 2006-4 and 2006-5 | New York state court
Litigation disclosures
Litigation Settlement, Amount Awarded to Other Party		500,000
Credit Suisse AG | Customer acount matters, against former relationship manager | Geneva Prosecutor's Office
Litigation disclosures
Estimated damages		130,000
Credit Suisse AG | Litigation Bulgarian former clients matter | Swiss Federal Criminal Court
Litigation disclosures
Estimated damages | SFr	SFr 19
of which fines | SFr	2
Seized client assets | SFr	SFr 12
Credit Suisse AG and certain affiliates | Mortgage-related matters | Litigation, Plaintiff, Loreley | English Court | Minimum
Litigation disclosures
Estimated damages		100,000
Credit Suisse Group AG, Credit Suisse AG, Credit Suisse Securities (Europe) Limited | Rates Related Matters - regulatory matters - foreign exchange trading business | European Commission
Litigation disclosures
of which fines | €			€ 83.3
Credit Suisse Group AG, Credit Suisse Securities (Europe) Limited | Rates Related Matters - regulatory matters - SSA bonds trading business | European Commission
Litigation disclosures
of which fines | €			€ 11.9
CSSEL, CSI, Credit Suisse AG, London Branch | Mozambique matter | UK Financial Services Authority
Litigation disclosures
Debt Relief		200,000
CSSEL, CSI, Credit Suisse AG, London Branch | Mozambique matter | UK Financial Services Authority | Minimum | Penalty, basic [Member]
Litigation disclosures
Loss contingency, damages paid, value		200,000
Credit Suisse Life Bermuda Ltd [Member] | Customer acount matters, against former relationship manager | Supreme Court of Bermuda
Litigation disclosures
Estimated damages		$ 607,350
Bermuda Statutory Rate Of Interest	3.50%	3.50%	3.50%	3.50%
UBS Group, Credit Suisse AG, Credit Suisse Holdings (USA) and Credit Suisse AG, New York Branch | Archegos Capital Management | Board of Governors of the Federal Reserve System (Fed) | Penalty, final [Member]
Litigation disclosures
of which fines		$ 269,000
Credit Suisse Trust Limited, a Credit Suisse AG affiliate | Customer acount matters, against former relationship manager | Signapore International Commercial Court
Litigation disclosures
Estimated damages		742,730
Credit Suisse Securities LLC and certain of its affiliates | Bank loan litigation | Highland Capital Management LP | Texas State Court | Original [Member]
Litigation disclosures
Litigation Settlement, Amount Awarded to Other Party		287,000
Credit Suisse Securities LLC and certain of its affiliates | Bank loan litigation | Highland Capital Management LP | Texas State Court | Revised [Member]
Litigation disclosures
Litigation Settlement, Amount Awarded to Other Party		121,000
Credit Suisse Securities LLC and certain of its affiliates | Bank loan litigation | Highland Capital Management LP | Texas supreme court | Reversed [Member]
Litigation disclosures
Litigation Settlement, Amount Awarded to Other Party		$ 212,000
Credit Suisse International and Credit Suisse Securities (Europe) Limited | Archegos Capital Management | Prudential Regulation Authority (PRA) | Penalty, final [Member]
Litigation disclosures
of which fines | £				£ 87

X

- References

No definition available.

+ Details

Name:	cs_BermudaStatutoryRateOfInterest
Namespace Prefix:	cs_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

X

- References

No definition available.

+ Details

Name:	cs_DebtRelief
Namespace Prefix:	cs_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- References

No definition available.

+ Details

Name:	cs_LitigationClientAssetsSeized
Namespace Prefix:	cs_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- References

No definition available.

+ Details

Name:	cs_LitigationIncreaseOfConsumerReliefPerAnnum
Namespace Prefix:	cs_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Fines in connection with a settlement of a litigation.

+ References

No definition available.

+ Details

Name:	cs_LossContingencySettlementsJudgmentsAndFinesConsiderationFines
Namespace Prefix:	cs_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Restitution in connection with a settlement of a litigation.

+ References

No definition available.

+ Details

Name:	cs_LossContingencySettlementsJudgmentsAndFinesConsiderationRestitution
Namespace Prefix:	cs_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Amount awarded to other party in judgment or settlement of litigation.

+ References

No definition available.

+ Details

Name:	us-gaap_LitigationSettlementAmountAwardedToOtherParty
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

Amount charged against operating income increasing loss contingency liability, after adjustments to reduce previously estimated charges.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 1
-URI https://asc.fasb.org/extlink&oid=121557415&loc=d3e14326-108349

+ Details

Name:	us-gaap_LossContingencyAccrualProvision
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

+ References

No definition available.

+ Details

Name:	us-gaap_LossContingencyAccrualRollForward
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Amount of damages paid to the plaintiff in the legal matter.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 1
-URI https://asc.fasb.org/extlink&oid=121557415&loc=d3e14326-108349

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 9
-Subparagraph (a)
-URI https://asc.fasb.org/extlink&oid=121557415&loc=d3e14557-108349

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 4
-Subparagraph (a)
-URI https://asc.fasb.org/extlink&oid=121557415&loc=d3e14435-108349

+ Details

Name:	us-gaap_LossContingencyDamagesPaidValue
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

The value (monetary amount) of the award the plaintiff seeks in the legal matter.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 4
-Subparagraph (a)
-URI https://asc.fasb.org/extlink&oid=121557415&loc=d3e14435-108349

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 1
-URI https://asc.fasb.org/extlink&oid=121557415&loc=d3e14326-108349

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 9
-Subparagraph (a)
-URI https://asc.fasb.org/extlink&oid=121557415&loc=d3e14557-108349

+ Details

Name:	us-gaap_LossContingencyDamagesSoughtValue
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- References

No definition available.

+ Details

Name:	us-gaap_LossContingencyInformationAboutLitigationMattersAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The difference between the maximum amount of estimated loss and the amount recorded as of the balance sheet date.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 9
-Subparagraph (b)
-URI https://asc.fasb.org/extlink&oid=121557415&loc=d3e14557-108349

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 4
-Subparagraph (b)
-URI https://asc.fasb.org/extlink&oid=121557415&loc=d3e14435-108349

+ Details

Name:	us-gaap_LossContingencyRangeOfPossibleLossPortionNotAccrued
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Details

Name:	us-gaap_LossContingenciesByNatureOfContingencyAxis=us-gaap_PendingLitigationMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_RangeAxis=srt_MinimumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_RangeAxis=srt_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_LossContingenciesByNatureOfContingencyAxis=cs_LossContingencyMozambiqueMatterMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	cs_LitigationByCourtJurisdictionAxis=cs_LitigationCourtUnitedStatesDepartmentOfJusticeDOJMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	cs_PenaltyTypeAxis=cs_PenaltyBasicMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	cs_PenaltyTypeAxis=cs_PenaltyDisgorgementMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	cs_PenaltyTypeAxis=cs_PenaltyPrejudgmentInterestMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	cs_LitigationByCourtJurisdictionAxis=cs_LitigationCourtUSDistrictCourtForTheEasternDistrictOfNewYorkEDNYMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	cs_PenaltyTypeAxis=cs_PenaltyFinalMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	cs_LitigationByCourtJurisdictionAxis=cs_USDepartmentOfJusticeDOJAndSecuritiesAndExchangeCommissionSECMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

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

X

- Details

Name:	us-gaap_LossContingenciesByNatureOfContingencyAxis=cs_LitigationMortgagerelatedMattersGovernmentAndRegulatoryRelatedMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

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

X

- Details

Name:	us-gaap_LossContingenciesByNatureOfContingencyAxis=cs_LitigationMortgagerelatedMattersRepurchaseLitigationsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	cs_LossContingenciesByNameAssociatedWithContingencyAxis=cs_LitigationPlaintiffHomeEquityMortgageTrustSeries20065Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	cs_LitigationByCourtJurisdictionAxis=cs_LitigationCourtNewYorkStateCourtMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	cs_LossContingenciesByNameAssociatedWithContingencyAxis=cs_LitigationPlaintiffHomeEquityMortgageTrustSeries2006120063And20064Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	cs_LossContingenciesByNameAssociatedWithContingencyAxis=cs_LitigationPlaintiffHomeEquityLoanTrustSeries2006HE7Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	cs_LossContingenciesByNameAssociatedWithContingencyAxis=cs_LitigationPlaintiffHomeEquityAssetTrustSeries20068Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	cs_LossContingenciesByNameAssociatedWithContingencyAxis=cs_LitigationPlaintiffHomeEquityAssetTrustSeries20071Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	cs_LossContingenciesByNameAssociatedWithContingencyAxis=cs_LitigationPlaintiffHomeEquityAssetTrustSeries20072Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	cs_LossContingenciesByNameAssociatedWithContingencyAxis=cs_LitigationPlaintiffHomeEquityAssetTrustSeries20073Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	cs_LitigationByCourtJurisdictionAxis=cs_LitigationCourtMinnesotaStateCourtMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	cs_LossContingenciesByNameAssociatedWithContingencyAxis=cs_LitigationPlaintiffHomeEquityMortgageTrustSeries200612006320064And20065Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

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

X

- Details

Name:	us-gaap_LossContingenciesByNatureOfContingencyAxis=cs_LossContingencyLitigationCustomerAcountMattersAgainstFormerRelationshipManagerMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	cs_LitigationByCourtJurisdictionAxis=cs_LitigationCourtGenevaProsecutorsOfficeMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_LossContingenciesByNatureOfContingencyAxis=cs_LossContingencyLitigationBulgarianFormerClientsMatterMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	cs_LitigationByCourtJurisdictionAxis=cs_LitigationCourtSwissFederalCriminalCourtMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

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

X

- Details

Name:	us-gaap_LossContingenciesByNatureOfContingencyAxis=cs_LitigationMortgageRelatedMattersMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	cs_LossContingenciesByNameAssociatedWithContingencyAxis=cs_LitigationPlaintiffLoreleyMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	cs_LitigationByCourtJurisdictionAxis=cs_LitigationCourtEnglishCourtMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

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

X

- Details

Name:	us-gaap_LossContingenciesByNatureOfContingencyAxis=cs_LossContingencyRatesRelatedMattersRegulatoryMattersForeignExchangeTradingBusinessMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	cs_LossContingenciesByNameAssociatedWithContingencyAxis=cs_EuropeanCommissionMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

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

X

- Details

Name:	us-gaap_LossContingenciesByNatureOfContingencyAxis=cs_LossContingencyRatesRelatedMattersRegulatoryMattersSSABondsTradingBusinessMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

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

X

- Details

Name:	cs_LitigationByCourtJurisdictionAxis=cs_LitigationCourtUKFinancialServicesAuthorityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

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

X

- Details

Name:	cs_LitigationByCourtJurisdictionAxis=cs_LitigationCourtSupremeCourtOfBermudaMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

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

X

- Details

Name:	us-gaap_LossContingenciesByNatureOfContingencyAxis=cs_ArchegosCapitalManagementMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	cs_LitigationByCourtJurisdictionAxis=cs_LitigationCourtBoardOfGovernorsOfTheFederalReserveSystemFedMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

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

X

- Details

Name:	cs_LitigationByCourtJurisdictionAxis=cs_SignaporeInternationalCommercialCourtMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

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

X

- Details

Name:	us-gaap_LossContingenciesByNatureOfContingencyAxis=cs_LitigationBankLoanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	cs_LossContingenciesByNameAssociatedWithContingencyAxis=cs_LitigationPlaintiffHighlandCapitalManagementLPMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	cs_LitigationByCourtJurisdictionAxis=cs_LitigationCourtTexasStateMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	cs_AwardedAxis=cs_OriginalMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	cs_AwardedAxis=cs_RevisedMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	cs_LitigationByCourtJurisdictionAxis=cs_LitigationCourtTexasSupremeCourtMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	cs_AwardedAxis=cs_ReversedMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

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

X

- Details

Name:	cs_LitigationByCourtJurisdictionAxis=cs_PrudentialRegulationAuthorityPRAMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: