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Derivatives and hedging activities - Credit protection sold/purchased (Details 4) - CHF (SFr) SFr in Billions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2022 | Dec. 31, 2023
Credit protection sold/purchased |  |
Credit protection sold | SFr (160.3) | SFr (72.5)
Credit protection purchased | 148.5 | 66.1
Net credit protection (sold)/purchased | (11.8) | (6.4)
Other protection purchased | 33.9 | 13.6
Fair value of credit protection sold | (0.5) | (0.1)
Total return swaps |  |
Credit protection sold/purchased |  |
Credit protection sold | (5.9) | (2.5)
Maturity less than 1 year |  |
Credit protection sold/purchased |  |
Credit protection sold | (16.5) | (14.6)
Maturity between 1 to 5 years |  |
Credit protection sold/purchased |  |
Credit protection sold | (133.3) | (52.3)
Maturity greater than 5 years |  |
Credit protection sold/purchased |  |
Credit protection sold | (10.5) | (5.6)
Government debt securities |  |
Credit protection sold/purchased |  |
Credit protection sold | (12.8) | (4.1)
Credit protection purchased | 11.3 | 3.0
Net credit protection (sold)/purchased | (1.5) | (1.1)
Other protection purchased | 4.4 | 2.7
Fair value of credit protection sold | (0.1) | 0.0
Non-sovereigns |  |
Credit protection sold/purchased |  |
Credit protection sold | (147.5) | (68.4)
Credit protection purchased | 137.2 | 63.1
Net credit protection (sold)/purchased | (10.3) | (5.3)
Other protection purchased | 29.5 | 10.9
Fair value of credit protection sold | (0.4) | (0.1)
Investment grade |  |
Credit protection sold/purchased |  |
Credit protection sold | (107.1) | (54.4)
Credit protection purchased | 99.4 | 50.5
Net credit protection (sold)/purchased | (7.7) | (3.9)
Other protection purchased | 19.5 | 8.3
Fair value of credit protection sold | 0.3 | 0.1
Non-investment grade |  |
Credit protection sold/purchased |  |
Credit protection sold | (53.2) | (18.1)
Credit protection purchased | 49.1 | 15.6
Net credit protection (sold)/purchased | (4.1) | (2.5)
Other protection purchased | 14.4 | 5.3
Fair value of credit protection sold | (0.8) | (0.2)
Single-name instruments |  |
Credit protection sold/purchased |  |
Credit protection sold | (75.1) | (24.6)
Credit protection purchased | 69.3 | 20.4
Net credit protection (sold)/purchased | (5.8) | (4.2)
Other protection purchased | 15.5 | 8.4
Fair value of credit protection sold | 0.0 | 0.1
Single-name instruments | Maturity less than 1 year |  |
Credit protection sold/purchased |  |
Credit protection sold | (10.0) | (4.3)
Single-name instruments | Maturity between 1 to 5 years |  |
Credit protection sold/purchased |  |
Credit protection sold | (61.8) | (19.2)
Single-name instruments | Maturity greater than 5 years |  |
Credit protection sold/purchased |  |
Credit protection sold | (3.3) | (1.1)
Single-name instruments | Government debt securities |  |
Credit protection sold/purchased |  |
Credit protection sold | (12.8) | (4.1)
Credit protection purchased | 11.3 | 3.0
Net credit protection (sold)/purchased | (1.5) | (1.1)
Other protection purchased | 4.4 | 2.7
Fair value of credit protection sold | (0.1) | 0.0
Single-name instruments | Non-sovereigns |  |
Credit protection sold/purchased |  |
Credit protection sold | (62.3) | (20.5)
Credit protection purchased | 58.0 | 17.4
Net credit protection (sold)/purchased | (4.3) | (3.1)
Other protection purchased | 11.1 | 5.7
Fair value of credit protection sold | 0.1 | 0.1
Single-name instruments | Investment grade |  |
Credit protection sold/purchased |  |
Credit protection sold | (52.8) | (18.0)
Credit protection purchased | 48.6 | 15.4
Net credit protection (sold)/purchased | (4.2) | (2.6)
Other protection purchased | 10.6 | 6.3
Fair value of credit protection sold | 0.2 | 0.0
Single-name instruments | Non-investment grade |  |
Credit protection sold/purchased |  |
Credit protection sold | (22.3) | (6.6)
Credit protection purchased | 20.7 | 5.0
Net credit protection (sold)/purchased | (1.6) | (1.6)
Other protection purchased | 4.9 | 2.1
Fair value of credit protection sold | (0.2) | 0.1
Multi-name instruments |  |
Credit protection sold/purchased |  |
Credit protection sold | (85.2) | (47.9)
Credit protection purchased | 79.2 | 45.7
Net credit protection (sold)/purchased | (6.0) | (2.2)
Other protection purchased | 18.4 | 5.2
Fair value of credit protection sold | (0.5) | (0.2)
Multi-name instruments | Maturity less than 1 year |  |
Credit protection sold/purchased |  |
Credit protection sold | (6.5) | (10.3)
Multi-name instruments | Maturity between 1 to 5 years |  |
Credit protection sold/purchased |  |
Credit protection sold | (71.5) | (33.1)
Multi-name instruments | Maturity greater than 5 years |  |
Credit protection sold/purchased |  |
Credit protection sold | (7.2) | (4.5)
Multi-name instruments | Non-sovereigns |  |
Credit protection sold/purchased |  |
Credit protection sold | (85.2) | (47.9)
Credit protection purchased | 79.2 | 45.7
Net credit protection (sold)/purchased | (6.0) | (2.2)
Other protection purchased | 18.4 | 5.2
Fair value of credit protection sold | (0.5) | (0.2)
Multi-name instruments | Investment grade |  |
Credit protection sold/purchased |  |
Credit protection sold | (54.3) | (36.4)
Credit protection purchased | 50.8 | 35.1
Net credit protection (sold)/purchased | (3.5) | (1.3)
Other protection purchased | 8.9 | 2.0
Fair value of credit protection sold | 0.1 | 0.1
Multi-name instruments | Non-investment grade |  |
Credit protection sold/purchased |  |
Credit protection sold | (30.9) | (11.5)
Credit protection purchased | 28.4 | 10.6
Net credit protection (sold)/purchased | (2.5) | (0.9)
Other protection purchased | 9.5 | 3.2
Fair value of credit protection sold | SFr (0.6) | SFr (0.3)

X
- Definition The net of credit protection sold and credit protection purchased with identical underlyings. + References No definition available. + Details
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- Definition The amount of credit protection purchased with similar, but not identical underlyings. + References No definition available. + Details
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- Definition Maximum potential amount of future undiscounted payments that could be required under the credit derivative, before reduction for potential recoveries under recourse or collateralization provisions. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4K -Subparagraph (b)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480434/815-10-50-4K + Details
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- Definition Amount of purchased credit protection expected to cover future payments under the credit risk derivative. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4K -Subparagraph (f) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480434/815-10-50-4K + Details
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- Definition Fair value of credit risk derivative asset after deduction of credit risk derivative liability. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 4K -Subparagraph (c) -SubTopic 10 -Topic 815 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480434/815-10-50-4K + Details
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