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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables) | 12 Months Ended
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Dec. 31, 2024
Accounting Policies [Abstract] |
Schedule of Results from Discontinued Operations | The financial results of the Chemicals business are classified as discontinued operations in the accompanying Consolidated Statements of Comprehensive Income for all periods presented. Results from discontinued operations are as follows:
in millions | 2024 | 2023 | 2022
Pretax loss | $ | (10.2) |  | $ | (14.7) |  | $ | (25.2) |
Income tax benefit | 2.6 |  | 3.9 |  | 6.6 |
Loss on discontinued operations, net of tax | $ | (7.6) |  | $ | (10.8) |  | $ | (18.6) |
Schedule of Depreciation, Depletion, Accretion and Amortization Expense | Depreciation, depletion, accretion and amortization expense for the years ended December 31 is outlined below:
in millions | 2024 | 2023 | 2022
Depreciation | $ | 464.6 |  | $ | 441.1 |  | $ | 409.1 |
Depletion | 59.5 |  | 61.1 |  | 50.2 |
Accretion | 14.7 |  | 13.9 |  | 14.1 |
Depreciation of finance leases | 9.5 |  | 12.8 |  | 16.5 |
Amortization of intangibles | 83.9 |  | 88.1 |  | 97.6 |
Total depreciation, depletion, accretion and amortization | $ | 632.2 |  | $ | 617.0 |  | $ | 587.5 |
Schedule of Fair Value Measurement on Recurring Basis | Our assets at December 31 subject to fair value measurement on a recurring basis are summarized below:
in millions | 2024 | 2023
Level 1 Fair Value |  |
Rabbi Trust |  |
Mutual funds | $ | 31.1 |  | $ | 31.7 |
Total | $ | 31.1 |  | $ | 31.7 |
Level 2 Fair Value |  |
Interest rate swaps | $ | 0.0 |  | $ | (0.3) |
Rabbi Trust |  |
Money market mutual fund | 0.3 |  | 0.5 |
Total | $ | 0.3 |  | $ | 0.2 |
Schedule of Liabilities Under Self-Insurance Program | The following table outlines our self-insurance program at December 31:
dollars in millions | 2024 | 2023
Self-insurance Program |  |
Self-insured liabilities (undiscounted) | $ | 138.2 |  | $ | 151.7 |
Insured liabilities (undiscounted) | 2.3 |  | 2.3 |
Discount rate | 4.22 | % | 4.56 | %
Amounts Recognized in Consolidated Balance Sheets |  |
Investments and long-term receivables | 2.3 |  | 2.3 |
Other current liabilities | (47.3) |  | (59.6) |
Other noncurrent liabilities | (74.6) |  | (76.1) |
Net insurance liabilities (discounted) | $ | (119.6) |  | $ | (133.4) |
Schedule of Estimated Payments (Undiscounted) Under Self-Insurance Program | Estimated payments (undiscounted and excluding the impact of related receivables) under our self-insurance program for the five years subsequent to December 31, 2024 are as follows:
in millions |
Estimated Payments under Self-insurance Program |
2025 | $ | 40.1 |
2026 | 29.0 |
2027 | 17.6 |
2028 | 10.0 |
2029 | 5.4 |
Schedule of Unrecognized Compensation Expense | A summary of the estimated future compensation cost (unrecognized compensation expense) as of December 31, 2024 related to share-based awards granted to employees under our long-term incentive plans is presented below:
dollars in millions | Unrecognized Compensation Expense | Expected Weighted-Average Recognition (Years)
SOSARs 1 | $ | 1.7 |  | 1.4
Performance shares | 18.6 |  | 1.7
Restricted shares | 13.4 |  | 1.7
Total/weighted-average | $ | 33.7 |  | 1.7
1 Stock-Only Stock Appreciation Rights (SOSARs)
Schedule of Pretax Compensation Expense | Pretax compensation expense related to our employee share-based compensation awards and related income tax benefits for the years ended December 31 are summarized below:
in millions | 2024 | 2023 | 2022
Pretax compensation expense | $ | 50.6 |  | $ | 60.6 |  | $ | 38.7 |
Income tax benefits | 7.7 |  | 9.1 |  | 6.9 |
Schedule of Weighted-Average Common Shares Outstanding Assuming Dilution | Earnings per share are computed by dividing net earnings by the weighted-average common shares outstanding (basic EPS) or weighted-average common shares outstanding assuming dilution (diluted EPS), as set forth below:
in millions | 2024 | 2023 | 2022
Weighted-average common shares outstanding | 132.3 | 133.0 | 133.0
Dilutive effect of |  |  |
SOSARs | 0.2 | 0.2 | 0.2
Other stock compensation awards | 0.6 | 0.5 | 0.4
Weighted-average common shares outstanding, assuming dilution | 133.1 | 133.7 | 133.6
Schedule of Antidilutive Common Stock Equivalents | The number of antidilutive common stock equivalents for which the exercise price exceeds the weighted-average market price for the years ended December 31 is as follows:
in millions | 2024 | 2023 | 2022
Antidilutive common stock equivalents | 0.0 | 0.0 | 0.1

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