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Pension and other post-retirement benefits (Details 11) - CHF (SFr) SFr in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2022 | Mar. 31, 2022 | Jun. 30, 2021 | Jun. 30, 2022 | Jun. 30, 2021
Actuarial gains/(losses) |  |  |  |  |
Increase (Decrease) in Accumulated other Comprehensive Income |  |  |  |  |
OCI, before Reclassifications, Net of Tax, Attributable to Parent | SFr 1 | SFr (1) | SFr (89) | SFr 0 | SFr (92)
Net prior service credit/ (cost) |  |  |  |  |
Increase (Decrease) in Accumulated other Comprehensive Income |  |  |  |  |
OCI, before Reclassifications, Net of Tax, Attributable to Parent | SFr 0 | SFr 0 | SFr 0 | 0 | 0
Bank | Actuarial gains/(losses) |  |  |  |  |
Increase (Decrease) in Accumulated other Comprehensive Income |  |  |  |  |
OCI, before Reclassifications, Net of Tax, Attributable to Parent |  |  |  | 0 | (85)
Bank | Net prior service credit/ (cost) |  |  |  |  |
Increase (Decrease) in Accumulated other Comprehensive Income |  |  |  |  |
OCI, before Reclassifications, Net of Tax, Attributable to Parent |  |  |  | SFr (1) | SFr (1)

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