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OTHER GAINS AND LOSSES - NET
 9 Months Ended
Sep. 30, 2025
Other Income and Expenses [Abstract]  
OTHER GAINS AND LOSSES - NET
NOTE 4 - OTHER GAINS AND LOSSES - NET
Three months ended September 30,Nine months ended September 30,
(in millions of U.S. dollars)Notes2025202420252024
Operating income and expenses
Realized gains / (losses) on derivatives (A)10(10)(9)3
Unrealized gains on derivatives at fair value through profit and loss - net (A)1213193419
Unrealized exchange gains / (losses) from the remeasurement of monetary assets and liabilities – net 1(1)11
Impairment of assets (B)—(5)—(13)
Restructuring costs (1)(4)(3)(7)
Losses on disposal —(2)(1)(3)
Result from the flood in Valais (C)3——2(6)
Non-operating income and expenses
Expenses on factoring arrangements 8(5)(6)(16)(16)
Pension and other post-employment benefits 13331010
Other(1)415
Total other gains and losses - net 20(2)19(7)
(A)Realized and unrealized gains and losses are related to derivatives entered into with the purpose of mitigating exposure to volatility in foreign currencies and commodity prices and that do not qualify for hedge accounting.
(B)For the three and nine months ended September 30, 2024, impairment related to property, plant and equipment in our Valais (Switzerland) operations.
(C)For the three and nine months ended September 30, 2024, the losses resulting from flooding in Sierre and Chippis include clean-up costs and inventory impairment and are net of $22 million of insurance proceeds.