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Supplemental Data (Summary of Inventories) (Details) - USD ($) $ in Millions | Dec. 31, 2024 | Dec. 31, 2023
--- | --- | ---
Inventory |  |
Raw materials | $ 383 | $ 413
Work in process | 190 | 211
Finished goods | 1,141 | 1,212
Supplies and other | 308 | 311
Gross inventories | 2,022 | 2,147
Excess of FIFO or weighted-average cost over LIFO cost | (200) | (192)
Total | 1,822 | 1,955
LIFO |  |
Inventory |  |
Raw materials | 122 | 121
Work in process | 116 | 116
Finished goods | 510 | 520
Supplies and other | 0 | 0
Gross inventories | 748 | 757
Excess of FIFO or weighted-average cost over LIFO cost | (200) | (192)
Total | 548 | 565
Non-LIFO |  |
Inventory |  |
Raw materials | 261 | 292
Work in process | 74 | 95
Finished goods | 631 | 692
Supplies and other | 308 | 311
Gross inventories | 1,274 | 1,390
Excess of FIFO or weighted-average cost over LIFO cost | 0 | 0
Total | $ 1,274 | $ 1,390

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