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Note 4 - Inventories - Schedule of Inventory (Details) - USD ($) $ in Millions | Mar. 31, 2025 | Dec. 31, 2024
--- | --- | ---
Finished goods inventory at average cost | $ 757 | $ 710
Less: Excess of weighted-average cost over LIFO cost (LIFO reserve) | (281) | (280)
Less: Other inventory reserves | (16) | (15)
Inventory, Net | 460 | 415
Valves, Automation, Measurement and Instrumentation [Member] |  |
Finished goods inventory at average cost | 212 | 206
Carbon Steel Pipe, Fittings and Flanges [Member] |  |
Finished goods inventory at average cost | 147 | 135
Gas Products [Member] |  |
Finished goods inventory at average cost | 277 | 265
All Other Products [Member] |  |
Finished goods inventory at average cost | $ 121 | $ 104

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