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AOCI - Significant reclassification adjustments (Details 3) - CHF (SFr) SFr in Millions | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Reclassification adjustments, included in net income |  |  |
Income tax expense/(benefit) | SFr 854 | SFr 3,973 | SFr 938
Gains/(losses) on cash flow hedges |  |  |
Reclassification adjustments, included in net income |  |  |
Reclassification adjustments, included in net income | 238 | (768) | (41)
Reclassification adjustments, included in retained earnings |  |  |
Reclassification from accumulated other comprehensive income retained earnings current period net of tax | 0 |  |
Gains/(losses) on cash flow hedges | Reclassification out of Accumulated Other Comprehensive Income [Member] |  |  |
Reclassification adjustments, included in net income |  |  |
Reclassification adjustments, included in net income, before tax | 296 | (959) | (40)
Income tax expense/(benefit) | (58) | 191 | (1)
Cumulative translation adjustments |  |  |
Reclassification adjustments, included in net income |  |  |
Reclassification adjustments, included in net income | 58 | 0 | 6
Reclassification adjustments, included in retained earnings |  |  |
Reclassification from accumulated other comprehensive income retained earnings current period net of tax | 1,530 | 0 | 0
Unrealized gains/(losses) on securities |  |  |
Reclassification adjustments, included in net income |  |  |
Reclassification adjustments, included in net income | 0 | (5) | 0
Reclassification adjustments, included in retained earnings |  |  |
Reclassification from accumulated other comprehensive income retained earnings current period net of tax | 19 |  |
Accumulated other comprehensive income |  |  |
Reclassification adjustments, included in net income |  |  |
Reclassification adjustments, included in net income | (7,412) | (786) | 88
Reclassification adjustments, included in retained earnings |  |  |
Reclassification from accumulated other comprehensive income retained earnings current period net of tax | 1,549 |  |
Net prior service credit/ (cost) |  |  |
Reclassification adjustments, included in net income |  |  |
Reclassification adjustments, included in net income | 1 | 1 | 1
Reclassification adjustments, included in retained earnings |  |  |
Reclassification from accumulated other comprehensive income retained earnings current period net of tax | 0 |  |
Actuarial gains/(losses) |  |  |
Reclassification adjustments, included in net income |  |  |
Reclassification adjustments, included in net income | 12 | 17 | 19
Reclassification adjustments, included in retained earnings |  |  |
Reclassification from accumulated other comprehensive income retained earnings current period net of tax | 0 |  |
Actuarial gains/(losses) | Reclassification out of Accumulated Other Comprehensive Income [Member] |  |  |
Reclassification adjustments, included in net income |  |  |
Reclassification adjustments, included in net income, before tax | 10 | 21 | 23
Income tax expense/(benefit) | 2 | (4) | (4)
Accumulated Gains (Losses) On Liabilities Related To Credit Risk |  |  |
Reclassification adjustments, included in net income |  |  |
Reclassification adjustments, included in net income | (7,721) | (31) | 103
Reclassification adjustments, included in retained earnings |  |  |
Reclassification from accumulated other comprehensive income retained earnings current period net of tax | 0 |  |
Accumulated Gains (Losses) On Liabilities Related To Credit Risk | Reclassification out of Accumulated Other Comprehensive Income [Member] |  |  |
Reclassification adjustments, included in net income |  |  |
Reclassification adjustments, included in net income, before tax | (9,161) | (31) | 103
Income tax expense/(benefit) | 1,440 | SFr 0 | SFr 0
Bank | Holding Verde Empreendimentos e Particpacoes S.A. [Member] | Cumulative translation adjustments | Reclassification out of Accumulated Other Comprehensive Income [Member] |  |  |
Reclassification adjustments, included in net income |  |  |
Net releases | SFr 58 |  |

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