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Derivatives and hedging activities (Details 6) - CHF (SFr) SFr in Billions | Jun. 30, 2022 | Dec. 31, 2021
--- | --- | ---
Investment securities |  |
Hedged items in fair value hedges [Line Items] |  |
Hedged Asset, Fair Value Hedge | SFr 0.7 | SFr 0.8
Hedged Asset, Fair Value Hedge, Cumulative Increase (Decrease) | (0.1) | 0.0
Hedged Asset, Discontinued Fair Value Hedge, Cumulative Increase (Decrease) | 0.0 | 0.0
Long-term debt |  |
Hedged items in fair value hedges [Line Items] |  |
Hedged Liability, Fair Value Hedge | 67.1 | 69.4
Hedged Liability, Fair Value Hedge, Cumulative Increase (Decrease) | (2.3) | (0.2)
Hedged Liability, Discontinued Fair Value Hedge, Cumulative Increase (Decrease) | (1.7) | 0.8
Net loans |  |
Hedged items in fair value hedges [Line Items] |  |
Hedged Asset, Fair Value Hedge | 16.5 | 16.6
Hedged Asset, Fair Value Hedge, Cumulative Increase (Decrease) | (1.5) | (0.2)
Hedged Asset, Discontinued Fair Value Hedge, Cumulative Increase (Decrease) | (0.1) | 0.2
Bank | Investment securities |  |
Hedged items in fair value hedges [Line Items] |  |
Hedged Asset, Fair Value Hedge | 0.7 | 0.8
Hedged Asset, Fair Value Hedge, Cumulative Increase (Decrease) | (0.1) | 0.0
Hedged Asset, Discontinued Fair Value Hedge, Cumulative Increase (Decrease) | 0.0 | 0.0
Bank | Long-term debt |  |
Hedged items in fair value hedges [Line Items] |  |
Hedged Liability, Fair Value Hedge | 63.4 | 65.6
Hedged Liability, Fair Value Hedge, Cumulative Increase (Decrease) | (2.0) | (0.1)
Hedged Liability, Discontinued Fair Value Hedge, Cumulative Increase (Decrease) | (1.4) | 0.8
Bank | Net loans |  |
Hedged items in fair value hedges [Line Items] |  |
Hedged Asset, Fair Value Hedge | 16.5 | 16.6
Hedged Asset, Fair Value Hedge, Cumulative Increase (Decrease) | (1.5) | (0.2)
Hedged Asset, Discontinued Fair Value Hedge, Cumulative Increase (Decrease) | SFr (0.1) | SFr 0.2

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