SEGMENT REPORTING (Segment Financial Disclosure) (Details) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Segment Reporting Information [Line Items]
Total revenues	[1]	$ 7,315.2	$ 5,552.2	$ 4,856.8
Gross profit		1,557.7	1,373.4	1,281.5
Depreciation, Depletion, Accretion & Amortization (DDA&A)		587.5	463.0	396.8
Capital Expenditures	[2]	644.1	450.5	363.4
Cash and cash equivalents and restricted cash		161.5	241.5	1,198.0	$ 274.5
Total assets		14,234.6	13,682.6	11,686.9
Operating Segments [Member]
Segment Reporting Information [Line Items]
Total revenues	[1]	7,864.7	5,896.5	5,128.2
Total assets	[3],[4]	13,612.8	13,204.0	10,341.1
Intersegment Sales [Member]
Segment Reporting Information [Line Items]
Total revenues	[1]	(549.5)	(344.3)	(271.4)
Aggregates [Member]
Segment Reporting Information [Line Items]
Total revenues	[1]	4,723.3	4,000.7	3,672.9
Aggregates [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Total revenues	[1],[5]	5,272.8	4,345.0	3,944.3
Gross profit		1,408.5	1,295.7	1,159.2
Depreciation, Depletion, Accretion & Amortization (DDA&A)		441.1	360.4	321.1
Capital Expenditures	[2]	540.3	423.1	331.9
Total assets	[3],[4]	11,575.2	10,917.8	9,459.2
Aggregates [Member] | Intersegment Sales [Member]
Segment Reporting Information [Line Items]
Total revenues	[1]	(549.5)	(344.3)	(271.4)
Asphalt [Member]
Segment Reporting Information [Line Items]
Total revenues	[1]	990.2	777.8	792.6
Asphalt [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Total revenues	[1],[6]	990.2	777.8	792.6
Gross profit		57.3	21.2	75.2
Depreciation, Depletion, Accretion & Amortization (DDA&A)		35.1	36.0	35.0
Capital Expenditures	[2]	23.3	9.3	19.8
Total assets	[3],[4]	597.6	602.0	573.1
Asphalt [Member] | Intersegment Sales [Member]
Segment Reporting Information [Line Items]
Total revenues	[1]	0.0	0.0	0.0
Concrete [Member]
Segment Reporting Information [Line Items]
Total revenues	[1]	1,593.9	766.8	383.6
Concrete [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Total revenues	[1]	1,593.9	766.8	383.6
Gross profit		89.3	54.3	44.2
Depreciation, Depletion, Accretion & Amortization (DDA&A)		83.1	41.5	16.0
Capital Expenditures	[2]	50.4	18.1	11.7
Total assets	[3],[4]	1,436.2	1,680.2	305.5
Concrete [Member] | Intersegment Sales [Member]
Segment Reporting Information [Line Items]
Total revenues	[1]	0.0	0.0	0.0
Calcium [Member]
Segment Reporting Information [Line Items]
Total revenues	[1]	7.8	6.9	7.7
Calcium [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Total revenues	[1]	7.8	6.9	7.7
Gross profit		2.6	2.2	2.9
Depreciation, Depletion, Accretion & Amortization (DDA&A)		0.2	0.2	0.2
Capital Expenditures	[2]	0.1	0.0	0.0
Total assets	[3],[4]	3.8	4.0	3.3
Calcium [Member] | Intersegment Sales [Member]
Segment Reporting Information [Line Items]
Total revenues	[1]	0.0	0.0	0.0
Other Segments [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Depreciation, Depletion, Accretion & Amortization (DDA&A)		28.0	24.9	24.5
Corporate [Member]
Segment Reporting Information [Line Items]
Capital Expenditures	[2]	30.0	0.0	0.0
Total assets		$ 460.3	$ 237.1	$ 147.8

[1] ¹ The geographic markets are defined by states as follows: East market — Arkansas, Delaware, Illinois, Kentucky, Maryland, New Jersey, New York, North Carolina, Pennsylvania, Tennessee, Virginia, and Washington D.C. Gulf Coast market — Alabama, Florida, Georgia, Louisiana, Mississippi, Oklahoma, South Carolina, Texas, U.S. Virgin Islands, Freeport (Bahamas), Puerto Cortés (Honduras) and Quintana Roo (Mexico) West market — Arizona, California, Hawaii, New Mexico and British Columbia (Canada)

[2] Capital expenditures include changes in accruals for purchases of property, plant & equipment. Capital expenditures exclude property, plant & equipment obtained by business acquisitions.

[3] Certain temporarily idled assets are included within a segment's Identifiable Assets but the associated DDA&A is shown within Other in the DDA&A section above as the related DDA&A is excluded from segment gross profit.

[4] The 2022 and 2021 increases in Aggregates and 2021 increase in Concrete Identifiable Assets are largely attributable to business acquisitions (see Note 19)

[5] Includes product sales, as well as freight & delivery costs that we pass along to our customers, and service revenues (see Note 2) related to aggregates.

[6] Includes product sales, as well as service revenues (see Note 2) from our asphalt construction paving business.