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SEGMENT INFORMATION (Details 1) - USD ($) $ in Millions | 12 Months Ended | 93 Months Ended
--- | --- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2023
Sales [Abstract] |  |  |  |  |
Sales | $ 6,833.0 | $ 9,376.2 | $ 8,910.6 |  |
Income (loss) before taxes [Abstract] |  |  |  |  |
Income before taxes | (559.3) | (1,676.0) | (1,538.7) |  |
Environmental expense | 23.7 | 23.2 | 14.0 |  |
Restructuring charges | (89.6) | (25.3) | (27.9) |  | $ (386.2)
Goodwill, Impairment Loss | 0.0 | 0.0 |  |  |
Other operating income | 42.9 | 16.3 | 1.4 |  |
Interest expense | (181.1) | (143.9) | (348.0) |  |
Interest income | 4.3 | 2.2 | 0.2 |  |
Non-operating pension income | 24.0 | 38.7 | 35.7 |  |
Depreciation and amortization expense [Abstract] |  |  |  |  |
Total depreciation and amortization expense | 533.4 | 598.8 | 582.5 |  |
Capital spending [Abstract] |  |  |  |  |
Total capital spending | 236.0 | 236.9 | 200.6 |  |
Assets |  |  |  |  |
Total assets | 7,713.2 | 8,044.2 |  |  | 7,713.2
Chlor Alkali Products and Vinyls |  |  |  |  |
Sales [Abstract] |  |  |  |  |
Sales | 3,995.1 | 5,085.0 | 4,140.8 |  |
Income (loss) before taxes [Abstract] |  |  |  |  |
Income before taxes | (664.2) | (1,181.3) | (997.8) |  |
Goodwill, Impairment Loss |  |  |  | $ (557.6) |
Depreciation and amortization expense [Abstract] |  |  |  |  |
Total depreciation and amortization expense | 440.7 | 482.2 | 466.4 |  |
Capital spending [Abstract] |  |  |  |  |
Total capital spending | 161.1 | 151.4 | 130.2 |  |
Assets |  |  |  |  |
Total assets | 5,650.2 | 5,782.2 |  |  | 5,650.2
Epoxy |  |  |  |  |
Sales [Abstract] |  |  |  |  |
Sales | 1,329.2 | 2,690.5 | 3,186.0 |  |
Income (loss) before taxes [Abstract] |  |  |  |  |
Income before taxes | 31.0 | (388.5) | (616.5) |  |
Goodwill, Impairment Loss |  |  |  | $ (142.2) |
Depreciation and amortization expense [Abstract] |  |  |  |  |
Total depreciation and amortization expense | 57.4 | 83.3 | 86.1 |  |
Capital spending [Abstract] |  |  |  |  |
Total capital spending | 15.2 | 27.2 | 31.0 |  |
Assets |  |  |  |  |
Total assets | 979.3 | 1,201.9 |  |  | 979.3
Winchester |  |  |  |  |
Sales [Abstract] |  |  |  |  |
Sales | 1,508.7 | 1,600.7 | 1,583.8 |  |
Income (loss) before taxes [Abstract] |  |  |  |  |
Income before taxes | (255.6) | (372.9) | (412.1) |  |
Depreciation and amortization expense [Abstract] |  |  |  |  |
Total depreciation and amortization expense | 27.2 | 24.6 | 23.3 |  |
Capital spending [Abstract] |  |  |  |  |
Total capital spending | 33.3 | 31.0 | 28.5 |  |
Assets |  |  |  |  |
Total assets | 683.6 | 595.0 |  |  | 683.6
Corporate/Other |  |  |  |  |
Income (loss) before taxes [Abstract] |  |  |  |  |
Environmental expense | (23.7) | (23.2) | (14.0) |  |
Other corporate and unallocated costs | (106.3) | (131.5) | (135.1) |  |
Restructuring charges | (89.6) | (25.3) | (27.9) |  |
Depreciation and amortization expense [Abstract] |  |  |  |  |
Total depreciation and amortization expense | 8.1 | 8.7 | 6.7 |  |
Capital spending [Abstract] |  |  |  |  |
Total capital spending | 26.4 | 27.3 | $ 10.9 |  |
Assets |  |  |  |  |
Total assets | $ 400.1 | $ 465.1 |  |  | $ 400.1

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