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Trading revenues (Details) - CHF (SFr) SFr in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Trading revenues
Trading revenues	SFr (2,116)	SFr (525)	SFr 2,371
Interest rate products
Trading revenues
Trading revenues	(1,734)	(1,367)	1,081
Foreign exchange products
Trading revenues
Trading revenues	851	521	1,133
Equity/index-related products
Trading revenues
Trading revenues	(356)	427	1,589
Credit products
Trading revenues
Trading revenues	(565)	540	(1,416)
Commodity, emission and energy products
Trading revenues
Trading revenues	(29)	8	(6)
Other trading securities
Trading revenues
Trading revenues	SFr (283)	SFr (654)	SFr (10)

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- Definition

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+ References

No definition available.

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- Definition

Amount of gain (loss) resulting from the difference between the acquisition price and the selling price or fair value of trading assets and trading liabilities, conducted separately from customer trading activities. Includes, but is not limited to, changes in fair value of trading assets and trading liabilities.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4F
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480434/815-10-50-4F

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 940
-SubTopic 320
-Section 45
-Paragraph 5
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481961/940-320-45-5

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 940
-SubTopic 320
-Section 35
-Paragraph 3
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481992/940-320-35-3

Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 942
-SubTopic 220
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-04.13(e))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147483589/942-220-S99-1

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