SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Narrative) (Details)	3 Months Ended				12 Months Ended
	Dec. 31, 2023 USD ($) item	Sep. 30, 2023 USD ($)	Dec. 31, 2022 USD ($)	Sep. 30, 2022 USD ($)	Dec. 31, 2023 USD ($) item segment factor	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)
Change in Accounting Estimate [Line Items]
Number of demographic factors | factor					3
Revenues from discontinued operations					$ 0	$ 0	$ 0
Bad debt expense					2,100,000	700,000	1,300,000
Customers, allowance for doubtful accounts	$ 13,600,000		$ 10,900,000		13,600,000	10,900,000
Gain (loss) on sale of property, plant & equipment and businesses					$ 76,400,000	10,700,000	120,100,000
Number of Rabbi Trust estabished | item	2				2
Net gains (losses) of the Rabbi Trust investments					$ 3,000,000.0	(4,800,000)	6,100,000
Unrealized net gains (losses) of the Rabbi Trusts' investments					3,100,000	(5,200,000)	5,300,000
Loss on impairments					28,300,000	67,900,000	4,600,000
Goodwill	$ 3,531,700,000		$ 3,689,600,000		$ 3,531,700,000	$ 3,689,600,000	3,696,700,000
Percentage of goodwill in total assets	24.00%		26.00%		24.00%	26.00%
Percentage of net property, plant & equipment in total assets	43.00%				43.00%
Number of operating segments | segment					4
Number of Reporting Units | item					16
Percentage of net other intangible assets in total assets	10.00%				10.00%
Stripping costs	$ 135,800,000		$ 133,100,000		$ 135,800,000	$ 133,100,000	90,700,000
Capitalized pre-production stripping costs	98,400,000		100,200,000		98,400,000	100,200,000
Pre-production stripping costs, accumulated amortization	7,700,000		6,000,000.0		7,700,000	6,000,000.0
Asset retirement obligations	324,100,000		311,300,000		324,100,000	311,300,000	315,200,000
Spread between the amount accrued and the maximum environmental loss	6,400,000				6,400,000
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
Accounting Standards Codification Topic 740 - Income Taxes recognition threshold for uncertain tax positions					50.00%
Impairment of long-lived assets							0
Goodwill impairment charges					$ 0	50,900,000	0
Income tax benefit recognition threshold more likely than not					50.00%
Charge for litigation matter					$ 15,300,000
Aggregates [Member]
Change in Accounting Estimate [Line Items]
Goodwill	3,330,200,000		3,330,300,000		$ 3,330,200,000	3,330,300,000	$ 3,316,600,000
Goodwill impairment charges						$ 0.0
Goodwill [Member]
Change in Accounting Estimate [Line Items]
Number of Reporting Units | item					11
Asset Held For Sale [Member]
Change in Accounting Estimate [Line Items]
Loss from assets held for sale impairment		$ (28,300,000)	(17,400,000)
Gain (loss) on sale of property, plant & equipment and businesses	$ (13,800,000)
Loss on impairments				$ 16,900,000
Minimum [Member] | Aggregates [Member]
Change in Accounting Estimate [Line Items]
Percent of shipments used for publicly funded construction					40.00%
Minimum [Member] | Machinery and Equipment [Member]
Change in Accounting Estimate [Line Items]
Estimated service lives	3 years				3 years
Minimum [Member] | Buildings [Member]
Change in Accounting Estimate [Line Items]
Estimated service lives	7 years				7 years
Minimum [Member] | Land Improvements [Member]
Change in Accounting Estimate [Line Items]
Estimated service lives	3 years				3 years
Maximum [Member] | Aggregates [Member]
Change in Accounting Estimate [Line Items]
Percent of shipments used for publicly funded construction					55.00%
Maximum [Member] | Machinery and Equipment [Member]
Change in Accounting Estimate [Line Items]
Estimated service lives	35 years				35 years
Maximum [Member] | Buildings [Member]
Change in Accounting Estimate [Line Items]
Estimated service lives	20 years				20 years
Maximum [Member] | Land Improvements [Member]
Change in Accounting Estimate [Line Items]
Estimated service lives	20 years				20 years
Polaris [Member] | Orca [Member]
Change in Accounting Estimate [Line Items]
Ownership percentage by parent	88.00%				88.00%
Namgis [Member] | Orca [Member]
Change in Accounting Estimate [Line Items]
Ownership percentage by noncontrolling owners	12.00%				12.00%
Texas [Member]
Change in Accounting Estimate [Line Items]
Gain (loss) on sale of property, plant & equipment and businesses	$ (13,800,000)
Loss on impairments	$ 28,300,000
New York, New Jersey And Pennsylvania [Member]
Change in Accounting Estimate [Line Items]
Goodwill impairment charges				50,900,000
Concrete [Member] | Texas [Member]
Change in Accounting Estimate [Line Items]
Loss on impairments		28,300,000
Concrete [Member] | New York, New Jersey And Pennsylvania [Member]
Change in Accounting Estimate [Line Items]
Gain (loss) on sale of property, plant & equipment and businesses			(17,400,000)
Loss on impairments			$ 67,800,000	16,900,000
Reported Value Measurement [Member] | Asset Held For Sale [Member]
Change in Accounting Estimate [Line Items]
Assets held for sale, estimated fair value		513,300,000		196,900,000
Estimate of Fair Value Measurement [Member] | Asset Held For Sale [Member]
Change in Accounting Estimate [Line Items]
Assets held for sale, estimated fair value				$ 180,000,000.0
Fair Value, Inputs, Level 1 [Member] | Estimate of Fair Value Measurement [Member] | Asset Held For Sale [Member]
Change in Accounting Estimate [Line Items]
Assets held for sale, estimated fair value		$ 485,000,000.0