SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Narrative (Details)	3 Months Ended			12 Months Ended
	Sep. 30, 2024 USD ($)	Dec. 31, 2023 USD ($)	Sep. 30, 2023 USD ($)	Dec. 31, 2025 USD ($) segment unit trust state factor	Dec. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)
Change in Accounting Estimate [Line Items]
Number of states in which entity operates | state				23
Number of demographic factors | factor				3
Revenues from discontinued operations				$ 0	$ 0	$ 0
Customers, allowance for doubtful accounts				10,500,000	13,200,000
Bad debt expense				1,700,000	3,700,000	2,100,000
Capitalized software costs				29,600,000	17,700,000
Capitalized software costs during the year				15,000,000.0	19,400,000
Capitalized computer software, amortization				$ 3,100,000	1,700,000	0
Number of rabbi trusts established | trust				2
Net gains (losses) of the Rabbi Trust investments				$ 3,400,000	(400,000)	3,000,000.0
Unrealized net gains (losses) of the Rabbi Trusts' investments				800,000	(600,000)	3,100,000
Impairment of long-lived assets			$ 28,300,000	0	0
Gain (Loss) on sale of property, plant & equipment and businesses				52,400,000	52,300,000	76,400,000
Goodwill		$ 3,531,700,000		$ 3,780,900,000	$ 3,788,100,000	3,531,700,000
Percentage of goodwill in total assets				23.00%	22.00%
Number of operating segments | segment				3
Number of reporting units | unit				14
Goodwill, impairment loss	$ 86,600,000			$ 0	$ 86,600,000	0
Percentage of net property, plant & equipment in total assets				49.00%
Percentage of net other intangible assets in total assets				9.00%
Stripping costs		135,800,000		$ 124,600,000	132,100,000	135,800,000
Pre-production stripping costs capitalized				137,900,000	104,800,000
Pre-production stripping costs, accumulated amortization				11,300,000	9,800,000
Asset retirement obligations				456,500,000	427,400,000
Spread between the amount accrued and the maximum environmental loss				3,500,000
Maximum self-insurance coverage per occurrence for losses related to workers' compensation				3,000,000.0
Maximum self-insurance coverage per occurrence for automotive and general/product liability				$ 10,000,000.0
Income tax benefit recognition threshold more likely than not				50.00%
Accounting standards codification Topic 740 - income taxes recognition threshold for uncertain tax positions				50.00%
Other intangible assets, net				$ 1,489,000,000	1,883,000,000
Other intangible assets, net				$ 1,489,000,000	1,883,000,000
Computer Software, Intangible Asset
Change in Accounting Estimate [Line Items]
Finite-lived intangible asset, useful life (in years)				7 years
Capitalized Quarry Development
Change in Accounting Estimate [Line Items]
Other intangible assets, net				$ 168,300,000
Other intangible assets, net				168,300,000
Aggregates
Change in Accounting Estimate [Line Items]
Goodwill		3,330,200,000		$ 3,666,000,000	3,673,200,000	$ 3,330,200,000
Goodwill, impairment loss					$ 0.0
Asset Held For Sale
Change in Accounting Estimate [Line Items]
Gain (Loss) on sale of property, plant & equipment and businesses		$ (13,800,000)
Asset Held For Sale | Reported Value Measurement
Change in Accounting Estimate [Line Items]
Assets held for sale, estimated fair value			513,300,000
Asset Held For Sale | Estimate of Fair Value Measurement | Level 1
Change in Accounting Estimate [Line Items]
Assets held for sale, estimated fair value			$ 485,000,000.0
Goodwill
Change in Accounting Estimate [Line Items]
Number of reporting units | unit				10
Minimum | Aggregates
Change in Accounting Estimate [Line Items]
Percent of shipments used for publicly funded construction				40.00%
Minimum | Machinery and equipment
Change in Accounting Estimate [Line Items]
Estimated service lives (in years)				3 years
Minimum | Buildings
Change in Accounting Estimate [Line Items]
Estimated service lives (in years)				7 years
Minimum | Land Improvements
Change in Accounting Estimate [Line Items]
Estimated service lives (in years)				3 years
Maximum | Construction Paving
Change in Accounting Estimate [Line Items]
Costs for paving contracts expense, expected amortization period				1 year
Maximum | Aggregates
Change in Accounting Estimate [Line Items]
Percent of shipments used for publicly funded construction				55.00%
Maximum | Machinery and equipment
Change in Accounting Estimate [Line Items]
Estimated service lives (in years)				35 years
Maximum | Buildings
Change in Accounting Estimate [Line Items]
Estimated service lives (in years)				20 years
Maximum | Land Improvements
Change in Accounting Estimate [Line Items]
Estimated service lives (in years)				20 years
Orca
Change in Accounting Estimate [Line Items]
Ownership percentage by parent				88.00%
Orca | Namgis
Change in Accounting Estimate [Line Items]
Ownership percentage by noncontrolling owners				12.00%