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Pension and other post-retirement benefits - Contributions (Details 7) - CHF (SFr) SFr in Millions	6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022
Defined Contribution Pension and Other Postretirement Plans Disclosure
Contributions made by the Entity to defined contribution pension plans	SFr 222	SFr 222

X

- References

No definition available.

+ Details

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Namespace Prefix:	cs_
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Period Type:	duration

X

- Definition

Amount of cost for defined contribution plan.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 70
-Section 50
-Paragraph 1
-URI https://asc.fasb.org/extlink&oid=49170846&loc=d3e28014-114942

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