CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) shares in Millions, $ in Millions		3 Months Ended		6 Months Ended
		Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME [Abstract]
Total revenues	[1]	$ 2,112.9	$ 1,954.3	$ 3,761.8	$ 3,495.0
Cost of revenues		(1,529.6)	(1,508.1)	(2,876.5)	(2,780.1)
Gross profit		583.3	446.2	885.3	714.9
Selling, administrative and general expenses		(139.1)	(134.4)	(256.5)	(253.4)
Gain on sale of property, plant & equipment and businesses		16.7	2.0	18.5	4.6
Other operating expense, net		(9.8)	(6.2)	(9.0)	(11.6)
Operating earnings		451.1	307.6	638.3	454.5
Other nonoperating income (expense), net		(0.1)	(4.7)	1.3	(3.0)
Interest expense, net		(46.7)	(38.7)	(95.7)	(74.7)
Earnings from continuing operations before income taxes		404.3	264.2	543.9	376.8
Income tax expense		(92.0)	(63.7)	(108.6)	(82.4)
Earnings from continuing operations		312.3	200.5	435.3	294.4
Loss on discontinued operations, net of tax		(3.7)	(13.1)	(5.8)	(14.9)
Net earnings		308.6	187.4	429.5	279.5
Earnings attributable to noncontrolling interest		(0.0)	(0.1)	(0.2)	(0.4)
Net earnings attributable to Vulcan		308.6	187.3	429.3	279.1
Other comprehensive income, net of tax
Amortization of prior cash flow hedge loss		0.4	0.4	0.8	0.7
Amortization of actuarial loss and prior service cost for benefit plans		1.3	0.7	2.5	1.5
Other comprehensive income		1.7	1.1	3.3	2.2
Comprehensive income		310.3	188.5	432.8	281.7
Comprehensive earnings attributable to noncontrolling interest		(0.0)	(0.1)	(0.2)	(0.4)
Comprehensive income attributable to Vulcan		$ 310.3	$ 188.4	$ 432.6	$ 281.3
Basic earnings (loss) per share attributable to Vulcan
Continuing operations		$ 2.34	$ 1.51	$ 3.27	$ 2.21
Discontinued operations		(0.02)	(0.10)	(0.05)	(0.11)
Net earnings		2.32	1.41	3.22	2.10
Diluted earnings (loss) per share attributable to Vulcan
Continuing operations		2.33	1.50	3.25	2.20
Discontinued operations		(0.02)	(0.10)	(0.04)	(0.11)
Net earnings		$ 2.31	$ 1.40	$ 3.21	$ 2.09
Weighted-average common shares outstanding
Basic		133.2	133.0	133.2	133.0
Assuming dilution		133.8	133.5	133.7	133.6
Effective tax rate from continuing operations		22.80%	24.10%	20.00%	21.90%

[1] ¹ The geographic markets are defined by states/countries 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)