v3.25.4

Pension and other postretirement benefits - Schedule of Benefit Costs (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2025 | Dec. 31, 2024 | Dec. 31, 2023
U.S. | Pension Plan |  |  |
Components of Net periodic benefit cost (credit): |  |  |
Service cost | $ 0 | $ 0 | $ 0
Interest cost | 4 | 4 | 38
Expected return on assets | 0 | 0 | (34)
Amortization of actuarial (gains) | (1) | (1) | 0
Settlement loss | 0 | 0 | 33
Net periodic benefit cost | 3 | 3 | 37
Changes in plan assets and benefit obligations recognized in Other comprehensive (income) loss: |  |  |
Net actuarial (gain) loss | 0 | (1) | 3
Amortization of actuarial loss (gain) | 1 | 1 | (33)
Foreign currency rate changes | 0 | 0 | 0
Foreign currency rate changes | 0 | 0 | 0
Total recognized in Other comprehensive (income) loss | 1 | 0 | (30)
Total recognized in Net periodic benefit cost and Other comprehensive (income) loss | $ 4 | $ 3 | $ 7
Weighted-average assumptions used to determine benefit obligations: |  |  |
Discount rate | 5.50% | 4.80% | 5.90%
Rate of compensation increase | 0.00% | 0.00% | 0.00%
Expected long-term rate of return on plan assets | 0.00% | 0.00% | 5.90%
Interest crediting rate | 3.00% | 3.00% | 3.00%
U.S. | Other Postretirement Benefits Plan |  |  |
Components of Net periodic benefit cost (credit): |  |  |
Service cost | $ 0 | $ 0 | $ 0
Interest cost | 2 | 2 | 3
Amortization of actuarial (gains) | (2) | (2) | (2)
Net periodic benefit cost | 0 | 0 | 1
Changes in plan assets and benefit obligations recognized in Other comprehensive (income) loss: |  |  |
Net actuarial (gain) loss | (1) | (2) | (3)
Amortization of actuarial loss (gain) | 2 | 2 | 2
Foreign currency rate changes | 0 | 0 | 0
Total recognized in Other comprehensive (income) loss | 1 | 0 | (1)
Total recognized in Net periodic benefit cost and Other comprehensive (income) loss | $ 1 | $ 0 | $ 0
Weighted-average assumptions used to determine benefit obligations: |  |  |
Discount rate | 5.40% | 4.80% | 4.90%
Non-U.S. | Pension Plan |  |  |
Components of Net periodic benefit cost (credit): |  |  |
Service cost | $ 4 | $ 2 | $ 2
Interest cost | 11 | 33 | 33
Expected return on assets | (10) | (31) | (32)
Amortization of actuarial (gains) | 0 | 0 | 0
Settlement loss | 0 | 61 | 0
Net periodic benefit cost | 5 | 65 | 3
Changes in plan assets and benefit obligations recognized in Other comprehensive (income) loss: |  |  |
Net actuarial (gain) loss | (5) | 0 | 40
Amortization of actuarial loss (gain) | 0 | (61) | 0
Foreign currency rate changes | 0 | (3) | 1
Foreign currency rate changes | 0 | 3 | (1)
Total recognized in Other comprehensive (income) loss | (5) | (64) | 41
Total recognized in Net periodic benefit cost and Other comprehensive (income) loss | $ 0 | $ 1 | $ 44
Weighted-average assumptions used to determine benefit obligations: |  |  |
Discount rate | 4.10% | 4.60% | 5.00%
Rate of compensation increase | 2.30% | 2.50% | 2.50%
Expected long-term rate of return on plan assets | 4.90% | 4.90% | 5.20%
Interest crediting rate | 2.90% | 0.00% | 0.00%
Non-U.S. | Other Postretirement Benefits Plan |  |  |
Components of Net periodic benefit cost (credit): |  |  |
Service cost | $ 1 | $ 1 | $ 1
Interest cost | 3 | 3 | 3
Amortization of actuarial (gains) | 0 | (1) | (2)
Net periodic benefit cost | 4 | 3 | 2
Changes in plan assets and benefit obligations recognized in Other comprehensive (income) loss: |  |  |
Net actuarial (gain) loss | (1) | 0 | 10
Amortization of actuarial loss (gain) | 0 | 1 | 2
Foreign currency rate changes | 0 | 1 | 0
Total recognized in Other comprehensive (income) loss | (1) | 2 | 12
Total recognized in Net periodic benefit cost and Other comprehensive (income) loss | $ 3 | $ 5 | $ 14
Weighted-average assumptions used to determine benefit obligations: |  |  |
Discount rate | 4.70% | 4.70% | 5.20%

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