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Other Financial Data - Other Income (Expense) (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Interest expense, net: |  |  |
Interest expense | $ (295) | $ (249) | $ (240)
Interest income | 68 | 33 | 14
Interest expense, net: | (227) | (216) | (226)
Other, net: |  |  |
Net periodic pension and postretirement benefit | 132 | 99 | 123
Loss from the extinguishment of long-term debt | (585) | 0 | (6)
Investment impairments | (3) | (16) | (1)
Foreign currency gain (loss) | 2 | (53) | 37
Gain (loss) on derivative instruments | (19) | 20 | (61)
Loss on equity method investments | 0 | 0 | (3)
Fair value adjustments to equity investments | (5) | 13 | (30)
Gain on TETRA Ireland equity method investment | 0 | 0 | 21
Assessments on uncertain tax positions | (11) | 0 | 0
Other | 0 | 5 | (3)
Total other | (489) | 68 | 77
Long-term Debt, Excluding Convertible Debt |  |  |
Other, net: |  |  |
Loss from the extinguishment of long-term debt | $ (585) | $ 0 | $ (6)

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