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INCOME TAXES (Tables)

12 Months Ended

Dec. 31, 2024

Income Tax Disclosure [Abstract]

Schedule of Components of Earnings From Continuing Operations before Income Taxes

The components of earnings from continuing operations before income taxes are as follows:

in millions			2024			2023			2022
Earnings from Continuing Operations before Income Taxes
Domestic			$	1,196.1		$	1,251.0		$	788.7
Foreign			(24.0)			(5.9)			(0.6)
Total			$	1,172.1		$	1,245.1		$	788.1

Schedule of Income Tax Expense (Benefit) from Continuing Operations

Income tax expense (benefit) from continuing operations consists of the following:

in millions			2024			2023			2022
Income Tax Expense (Benefit) from Continuing Operations
Current
Federal			$	204.7		$	274.8		$	85.2
State and local			51.8			64.0			43.6
Foreign			4.8			4.8			4.6
Total			$	261.3		$	343.6		$	133.4
Deferred
Federal			$	13.6		$	(44.1)		$	43.4
State and local			(20.5)			(4.2)			3.3
Foreign			(3.0)			4.1			12.9
Total			$	(9.9)		$	(44.2)		$	59.6
Total expense			$	251.4		$	299.4		$	193.0

Schedule of Sources and Tax Effects of Differences Between Expense (Benefit) Taxes

Income tax expense (benefit) differs from the amount computed by applying the federal statutory income tax rate to earnings from continuing operations before income taxes. The sources and tax effects of the differences are as follows:

dollars in millions			2024						2023						2022
Income tax expense at the federal statutory tax rate			$	246.1		21.0		%	$	261.5		21.0		%	$	165.5		21.0		%
Expense (Benefit) from Income Tax Differences
Statutory depletion			(41.0)			(3.5		%)	(39.0)			(3.1		%)	(30.6)			(3.9		%)
State and local income taxes, net of federal income tax benefit			51.4			4.4		%	48.7			3.9		%	37.5			4.8		%
Nondeductible goodwill			16.2			1.4		%	16.2			1.3		%	10.7			1.4		%
Valuation allowance			0.1			0.0		%	10.3			0.8		%	14.5			1.8		%
Deferred tax rate remeasurement			(21.9)			(1.9		%)	0.0			0.0		%	0.0			0.0		%
Other, net			0.5			0.0		%	1.7			0.1		%	(4.6)			(0.6		%)
Total income tax expense / Effective tax rate			$	251.4		21.4		%	$	299.4		24.0		%	$	193.0		24.5		%

Schedule of Components of Net Deferred Income Tax Liability

The components of the net deferred income tax liability at December 31 are as follows:

in millions			2024			2023
Deferred Tax Assets
Operating lease liabilities			$	140.8		$	139.1
Asset retirement obligations & other reserves			86.6			87.1
State net operating losses			74.7			79.6
Incentive compensation			52.4			57.6
State bonus depreciation			55.7			54.7
Capitalized research expenditures			39.7			25.4
Employee benefits			22.2			22.9
Other			81.8			56.9
Total gross deferred tax assets			$	553.9		$	523.3
Valuation allowance			(87.7)			(89.5)
Total net deferred tax asset			$	466.2		$	433.8
Deferred Tax Liabilities
Property, plant & equipment			$	1,244.8		$	907.1
Goodwill/other intangible assets			323.2			334.4
Operating lease right-of-use assets			129.8			128.2
Other			104.9			93.0
Total deferred tax liabilities			$	1,802.7		$	1,462.7
Deferred income tax liability, net			$	1,336.5		$	1,028.9

Schedule of Changes in Unrecognized Income Tax Benefits

Changes in our liability for unrecognized tax benefits for the years ended December 31 are as follows:

in millions			2024			2023			2022
Unrecognized tax benefits as of January 1			$	21.0		$	18.7		$	10.8
Increases for tax positions related to
Prior years			0.8			0.3			4.6
Current year			6.7			4.8			6.6
Decreases for tax positions related to
Prior years			0.0			(0.3)			(0.2)
Settlements			(0.3)			(0.2)			0.0
Expiration of applicable statute of limitations			(3.3)			(2.3)			(3.1)
Unrecognized tax benefits as of December 31			$	24.9		$	21.0		$	18.7

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Tabular disclosure of the components of income tax expense attributable to continuing operations for each year presented including, but not limited to: current tax expense (benefit), deferred tax expense (benefit), investment tax credits, government grants, the benefits of operating loss carryforwards, tax expense that results from allocating certain tax benefits either directly to contributed capital or to reduce goodwill or other noncurrent intangible assets of an acquired entity, adjustments of a deferred tax liability or asset for enacted changes in tax laws or rates or a change in the tax status of the entity, and adjustments of the beginning-of-the-year balances of a valuation allowance because of a change in circumstances that causes a change in judgment about the realizability of the related deferred tax asset in future years.

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Tabular disclosure of the components of net deferred tax asset or liability recognized in an entity's statement of financial position, including the following: the total of all deferred tax liabilities, the total of all deferred tax assets, the total valuation allowance recognized for deferred tax assets.

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Tabular disclosure of the reconciliation using percentage or dollar amounts of the reported amount of income tax expense attributable to continuing operations for the year to the amount of income tax expense that would result from applying domestic federal statutory tax rates to pretax income from continuing operations.

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Tabular disclosure of income before income tax between domestic and foreign jurisdictions.

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Tabular disclosure of the change in unrecognized tax benefits.

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