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Compensation and benefits (Details) - CHF (SFr) SFr in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Compensation and benefits
Salaries and variable compensation	SFr 6,696	SFr 6,376	SFr 6,730
Social security	501	508	530
Other	685	805	751
Compensation and benefits	7,882	7,689	8,011
Defined benefit and defined contribution
Compensation and benefits
Defined Benefit Plan, Service Cost	427	440	497
International | Defined benefit pension plans
Compensation and benefits
Defined Benefit Plan, Service Cost	12	14	14
International | Other post-retirement defined benefit plans
Compensation and benefits
Defined Benefit Plan, Service Cost	SFr 0	SFr 0	SFr 0

X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. This element represents information relating to compensation and benefits.

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Expenditures related to the provision of social security benefits.

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- Definition

Amount of cost for actuarial present value of benefits attributed to service rendered by employee for defined benefit plan.

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Amount of expense for salary, wage, profit sharing; incentive and equity-based compensation; and other employee benefit.

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