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v3.24.1

Pension and other post-retirement benefits - Obligation and funded status (Details) - CHF (SFr) SFr in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2024
Total amount recognized |  |  |  |  |
Noncurrent assets |  | SFr 519 | SFr 560 |  |
Amounts recognized in AOCI |  |  |  |  |
Actuarial gains/(losses) |  | (607) | (582) |  |
Prior service credit/(cost) |  | (8) | (9) |  |
Total |  | (615) | (591) |  |
Amounts recognized in other comprehensive income |  |  |  |  |
Actuarial gains/(losses), Tax |  | 30 | 84 | SFr 0 |
Actuarial gains/(losses), Net |  | (37) | (170) |  |
Prior service credit/(cost), Net |  |  | (4) |  |
Amortization of actuarial losses/ (gains), Net |  | (2) | 9 |  |
Amortization of prior service cost/(credit), Net |  | 1 | 1 |  |
Immediate recognition due to curtailment/settlement, Net |  | 14 | 8 |  |
Total amounts recognized in other comprehensive income, Net |  | (24) | (156) |  |
Defined benefit and defined contribution |  |  |  |  |
Total benefit costs |  |  |  |  |
Service costs on benefit obligation |  | 427 | 440 | 497 |
PBO |  |  |  |  |
Service costs |  | 427 | 440 | 497 |
International | Defined benefit pension plans |  |  |  |  |
Total benefit costs |  |  |  |  |
Service costs on benefit obligation |  | 12 | 14 | 14 |
Interest costs on benefit obligation |  | 86 | 58 | 49 |
Expected return on plan assets |  | (135) | (67) | (65) |
Amortization of recognized prior service cost/(credit) |  | 1 | 1 | 1 |
Amortization of recognized actuarial losses/(gains) |  | (4) | 9 | 14 |
Settlement losses/(gains) |  | 14 | 11 | 8 |
Net periodic benefit/(costs) |  | (26) | 26 | 21 |
PBO |  |  |  |  |
Beginning of the measurement period |  | 1,897 | 3,022 |  |
Service costs |  | 12 | 14 | 14 |
Interest costs |  | 86 | 58 | 49 |
Plan amendments |  | 0 | 4 |  |
Settlements |  | (59) | (37) |  |
Curtailments |  | (1) | 0 |  |
Actuarial losses/(gains) |  | 20 | (908) |  |
Benefit payments |  | (67) | (71) |  |
Exchange rate losses/(gains) |  | (120) | (185) |  |
End of the measurement period |  | 1,768 | 1,897 | 3,022 |
Fair value of plan assets |  |  |  |  |
Beginning of the measurement period |  | 2,316 | 3,802 |  |
Actual return on plan assets |  | 92 | (1,132) |  |
Employer contributions |  | 10 | 16 |  |
Settlements |  | (59) | (37) |  |
Benefit payments |  | (67) | (71) |  |
Exchange rate gains/(losses) |  | (126) | (262) |  |
End of the measurement period |  | 2,166 | 2,316 | SFr 3,802 |
Funded status recognized |  |  |  |  |
Funded status of the plan - overfunded/(underfunded) |  | 398 | 419 |  |
Total funded status recognized in the consolidated balance sheet at December 31 |  | 398 | 419 |  |
Total amount recognized |  |  |  |  |
Noncurrent assets |  | 520 | 559 |  |
Current liabilities |  | (11) | (7) |  |
Noncurrent liabilities |  | (111) | (133) |  |
Total amount recognized in the consolidated balance sheet at December 31 |  | 398 | 419 |  |
Defined Benefit Plan, Asset Portfolio Gains/(Losses) |  | (43) | (1,199) |  |
ABO |  |  |  |  |
End of the measurement period |  | 1,758 | 1,880 |  |
Amounts recognized in AOCI |  |  |  |  |
Actuarial gains/(losses) |  | (599) | (576) |  |
Prior service credit/(cost) |  | (11) | (12) |  |
Total |  | (610) | (588) |  |
Amounts recognized in other comprehensive income |  |  |  |  |
Actuarial gains/(losses), Gross |  | (63) | (284) |  |
Actuarial gains/(losses), Tax |  | 28 | 94 |  |
Actuarial gains/(losses), Net |  | (35) | (190) |  |
Prior service credit/(cost), Gross |  |  | (4) |  |
Prior service credit/(cost), Tax |  |  | 0 |  |
Prior service credit/(cost), Net |  |  | (4) |  |
Amortization of actuarial losses/(gains), Gross |  | (4) | 9 |  |
Amortization of actuarial losses/(gains), Tax |  | 2 | (1) |  |
Amortization of actuarial losses/ (gains), Net |  | (2) | 8 |  |
Amortization of prior service cost/(credit), Gross |  | 1 | 1 |  |
Amortization of prior service cost/(credit), Tax |  | 0 | 0 |  |
Amortization of prior service cost/(credit), Net |  | 1 | 1 |  |
Immediate recognition due to curtailment/settlement, Gross |  | 14 | 11 |  |
Immediate recognition due to curtailment/settlement, Tax |  | 0 | (3) |  |
Immediate recognition due to curtailment/settlement, Net |  | 14 | 8 |  |
Total amounts recognized in other comprehensive income, Gross |  | (52) | (267) |  |
Total amounts recognized in other comprehensive income, Tax |  | 30 | 90 |  |
Total amounts recognized in other comprehensive income, Net |  | SFr (22) | SFr (177) |  |
Net benefit pension cost (%) |  |  |  |  |
Discount rate - service costs (as a percent) |  | 4.60% | 2.90% | 2.64% |
Discount rate - interest costs (as a percent) |  | 5.03% | 2.10% | 1.56% |
Salary increases (as a percent) |  | 3.20% | 3.32% | 2.97% |
Expected long-term rate of return on plan assets (as a percent) |  | 4.35% | 2.01% | 1.79% |
Benefit obligation (%) |  |  |  |  |
Discount rate (as a percent) |  | 4.69% | 4.75% | 2.13% |
Salary increases (as a percent) |  | 3.25% | 3.18% | 3.32% |
International | Defined benefit pension plans | Forecast/Estimate |  |  |  |  |
Contributions disclosures |  |  |  |  |
Contribution to be made by the entity in next fiscal year |  |  |  |  | SFr 14
International | Other post-retirement defined benefit plans |  |  |  |  |
Total benefit costs |  |  |  |  |
Service costs on benefit obligation |  | SFr 0 | SFr 0 | SFr 0 |
Interest costs on benefit obligation |  | 5 | 3 | 2 |
Expected return on plan assets |  | 0 | 0 | 0 |
Amortization of recognized prior service cost/(credit) |  | 0 | 0 | 0 |
Amortization of recognized actuarial losses/(gains) |  | 0 | 1 | 1 |
Settlement losses/(gains) |  | 0 | 0 | 0 |
Net periodic benefit/(costs) |  | 5 | 4 | 3 |
PBO |  |  |  |  |
Beginning of the measurement period |  | 107 | 140 |  |
Service costs |  | 0 | 0 | 0 |
Interest costs |  | 5 | 3 | 2 |
Plan amendments |  | 0 | 0 |  |
Settlements |  | 0 | 0 |  |
Curtailments |  | 0 | 0 |  |
Actuarial losses/(gains) |  | 2 | (27) |  |
Benefit payments |  | (12) | (11) |  |
Exchange rate losses/(gains) |  | (8) | 2 |  |
End of the measurement period |  | 94 | 107 | 140 |
Fair value of plan assets |  |  |  |  |
Beginning of the measurement period |  | 0 | 0 |  |
Actual return on plan assets |  | 0 | 0 |  |
Employer contributions |  | 12 | 11 |  |
Settlements |  | 0 | 0 |  |
Benefit payments |  | (12) | (11) |  |
Exchange rate gains/(losses) |  | 0 | 0 |  |
End of the measurement period |  | 0 | 0 | SFr 0 |
Funded status recognized |  |  |  |  |
Funded status of the plan - overfunded/(underfunded) |  | (94) | (107) |  |
Total funded status recognized in the consolidated balance sheet at December 31 |  | (94) | (107) |  |
Total amount recognized |  |  |  |  |
Noncurrent assets |  | 0 | 0 |  |
Current liabilities |  | (7) | (10) |  |
Noncurrent liabilities |  | (87) | (97) |  |
Total amount recognized in the consolidated balance sheet at December 31 |  | (94) | (107) |  |
ABO |  |  |  |  |
End of the measurement period |  | 94 | 107 |  |
Amounts recognized in AOCI |  |  |  |  |
Actuarial gains/(losses) |  | (8) | (6) |  |
Prior service credit/(cost) |  | 3 | 3 |  |
Total |  | (5) | (3) |  |
Amounts recognized in other comprehensive income |  |  |  |  |
Actuarial gains/(losses), Gross |  | (2) | 27 |  |
Actuarial gains/(losses), Tax |  | 0 | (7) |  |
Actuarial gains/(losses), Net |  | (2) | 20 |  |
Prior service credit/(cost), Gross |  |  | 0 |  |
Prior service credit/(cost), Tax |  |  | 0 |  |
Prior service credit/(cost), Net |  |  | 0 |  |
Amortization of actuarial losses/(gains), Gross |  | 0 | 1 |  |
Amortization of actuarial losses/(gains), Tax |  | 0 | 0 |  |
Amortization of actuarial losses/ (gains), Net |  | 0 | 1 |  |
Amortization of prior service cost/(credit), Gross |  | 0 | 0 |  |
Amortization of prior service cost/(credit), Tax |  | 0 | 0 |  |
Amortization of prior service cost/(credit), Net |  | 0 | 0 |  |
Immediate recognition due to curtailment/settlement, Gross |  | 0 | 0 |  |
Immediate recognition due to curtailment/settlement, Tax |  | 0 | 0 |  |
Immediate recognition due to curtailment/settlement, Net |  | 0 | 0 |  |
Total amounts recognized in other comprehensive income, Gross |  | (2) | 28 |  |
Total amounts recognized in other comprehensive income, Tax |  | 0 | (7) |  |
Total amounts recognized in other comprehensive income, Net |  | SFr (2) | SFr 21 |  |
Net benefit pension cost (%) |  |  |  |  |
Discount rate - interest costs (as a percent) |  | 5.02% | 2.23% | 1.74% |
Benefit obligation (%) |  |  |  |  |
Discount rate (as a percent) |  | 4.83% | 5.18% | 2.89% |
Health care cost assumptions |  |  |  |  |
Weighted-average rate of health care benefit assumed (as a percent) | [1] | 8.30% | 6.30% | 6.50% |
Weighted-average rate of health care benefit decrease (as a percent) |  | 4.50% |  |  |
International | Other post-retirement defined benefit plans | Forecast/Estimate |  |  |  |  |
Contributions disclosures |  |  |  |  |
Contribution to be made by the entity in next fiscal year |  |  |  |  | SFr 7
Health care cost assumptions |  |  |  |  |
Weighted-average rate of health care benefit assumed (as a percent) |  |  |  |  | 8.30%
[1] | The annual health care cost trend rate is assumed to decrease gradually to achieve the long-term health care cost trend rate of 4.5% by 2034.

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- Definition The cost (credit) of benefit changes attributable to plan participants' prior service resulting from a plan amendment or plan initiation that occurred during the period, net of tax. The cost has not yet been recognized in net periodic benefit cost. A plan amendment includes provisions that grant increased (decreased) benefits based on services rendered in prior periods. + References No definition available. + Details
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- Definition The tax amount on cost (credit) of benefit changes attributable to plan participants' prior service resulting from a plan amendment or plan initiation that occurred during the period. The cost has not yet been recognized in net periodic benefit cost. A plan amendment includes provisions that grant increased (decreased) benefits based on services rendered in prior periods. + References No definition available. + Details
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- Definition Amount, after tax, of accumulated other comprehensive (income) loss for defined benefit plan, that has not been recognized in net periodic benefit cost (credit). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -Publisher FASB -URI https://asc.fasb.org//1943274/2147482790/220-10-45-14A Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 45 -Paragraph 10A -Subparagraph (i-k) -SubTopic 10 -Topic 220 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482790/220-10-45-10A Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (j) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480506/715-20-50-1 + Details
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- Definition Amount, after tax, of accumulated other comprehensive income (loss) for gain (loss) of defined benefit plan, that has not been recognized in net periodic benefit (cost) credit. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -Publisher FASB -URI https://asc.fasb.org//1943274/2147482790/220-10-45-14A Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (j) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480506/715-20-50-1 + Details
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