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Guarantees and commitments - Other commitments maturity (Details 7) - CHF (SFr) SFr in Millions	Dec. 31, 2023	Dec. 31, 2022
Other commitments
Maturity less than 1 year	SFr 14,087	SFr 23,883
Maturity between 1 to 3 years	22,548	33,569
Maturity between 3 to 5 years	22,981	44,565
Maturity greater than 5 years	4,817	15,051
Total gross amount	64,433	117,068
Total net amount	61,149	112,870
Unused revocable credit limits	98,850	129,224
Irrevocable commitments under documentary credits
Other commitments
Maturity less than 1 year	2,195	3,378
Maturity between 1 to 3 years	28	41
Maturity between 3 to 5 years	0	0
Maturity greater than 5 years	0	1
Total gross amount	2,223	3,420
Total net amount	2,159	3,233
Loan commitments
Other commitments
Maturity less than 1 year	11,471	19,272
Maturity between 1 to 3 years	22,514	33,512
Maturity between 3 to 5 years	22,980	44,563
Maturity greater than 5 years	4,615	14,782
Total gross amount	61,580	112,129
Total net amount	58,361	108,118
Forward reverse repurchase agreements
Other commitments
Maturity less than 1 year	147	1,021
Maturity between 1 to 3 years	0	0
Maturity between 3 to 5 years	0	0
Maturity greater than 5 years	0	0
Total gross amount	147	1,021
Total net amount	147	1,021
Other commitments
Other commitments
Maturity less than 1 year	274	212
Maturity between 1 to 3 years	6	16
Maturity between 3 to 5 years	1	2
Maturity greater than 5 years	202	268
Total gross amount	483	498
Total net amount	SFr 482	SFr 498

X

- Definition

Maximum potential amount of future payments (undiscounted) the entity could be required to make between one to three years of the balance sheet date under the commitment agreement (or each group of similar commitment agreements) before reduction for potential recoveries under recourse or collateralization provisions.

+ References

No definition available.

+ Details

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Namespace Prefix:	cs_
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Balance Type:	credit
Period Type:	instant

X

- Definition

Maximum potential amount of future payments (undiscounted) the entity could be required to make between three to five years of the balance sheet date under the commitment agreement (or each group of similar commitment agreements) before reduction for potential recoveries under recourse or collateralization provisions.

+ References

No definition available.

+ Details

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Namespace Prefix:	cs_
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X

- Definition

Maximum potential amount of future payments (undiscounted) the entity could be required to make greater than five years of the balance sheet date under the commitment agreement (or each group of similar commitment agreements) before reduction for potential recoveries under recourse or collateralization provisions.

+ References

No definition available.

+ Details

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Namespace Prefix:	cs_
Data Type:	xbrli:monetaryItemType
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X

- Definition

Maximum potential amount of future payments (undiscounted) the entity could be required to make within one year of the balance sheet date under the commitment agreement (or each group of similar commitment agreements) before reduction for potential recoveries under recourse or collateralization provisions.

+ References

No definition available.

+ Details

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Namespace Prefix:	cs_
Data Type:	xbrli:monetaryItemType
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X

- Definition

Maximum potential amount of future payments (undiscounted) the entity could be required to make under the commitment agreement (or each group of similar commitment agreements) before reduction for potential recoveries under recourse or collateralization provisions.

+ References

No definition available.

+ Details

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Namespace Prefix:	cs_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Maximum potential amount of future payments (undiscounted) the entity could be required to make under the commitment agreement (or each group of similar commitment agreements) after reduction for potential recoveries under recourse or collateralization provisions.

+ References

No definition available.

+ Details

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Namespace Prefix:	cs_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Represents the unused credit limits under the commitment agreement, which are revocable at the discretion of the reporting entity upon notice to client.

+ References

No definition available.

+ Details

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Namespace Prefix:	cs_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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Period Type:	duration

X

- Details

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X

- Details

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X

- Details

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Period Type:

X

- Details

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Period Type: