CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Income Statement [Abstract]
Total revenues	$ 7,941.1	$ 7,417.7	$ 7,781.9
Cost of revenues	(5,766.5)	(5,418.1)	(5,833.4)
Gross profit	2,174.6	1,999.6	1,948.5
Selling, administrative and general expenses	(564.1)	(531.1)	(542.8)
Gain on sale of property, plant & equipment and businesses	52.4	52.3	76.4
Loss on impairments	(0.0)	(86.6)	(28.3)
Other operating expense, net	(43.3)	(69.7)	(26.4)
Operating earnings	1,619.6	1,364.5	1,427.4
Other nonoperating expense, net	(3.2)	(22.1)	(2.7)
Interest income	13.4	20.9	16.5
Interest expense	(239.7)	(191.2)	(196.1)
Earnings from continuing operations before income taxes	1,390.1	1,172.1	1,245.1
Income tax (expense) benefit
Current	(281.6)	(261.3)	(343.6)
Deferred	(25.9)	9.9	44.2
Total income tax expense	(307.5)	(251.4)	(299.4)
Earnings from continuing operations	1,082.6	920.7	945.7
Loss on discontinued operations, net of tax	(4.5)	(7.6)	(10.8)
Net earnings	1,078.1	913.1	934.9
Earnings attributable to noncontrolling interest	(1.4)	(1.2)	(1.7)
Net earnings attributable to Vulcan	1,076.7	911.9	933.2
Other comprehensive income (loss), net of tax
Amortization of accumulated cash flow hedge losses	1.7	1.7	1.6
Adjustment for funded status of benefit plans	(3.9)	9.7	4.2
Amortization of accumulated benefit plan costs	4.0	5.0	5.1
Other comprehensive income	1.8	16.4	10.9
Comprehensive income	1,079.9	929.5	945.8
Comprehensive earnings attributable to noncontrolling interest	(1.4)	(1.2)	(1.7)
Comprehensive income attributable to Vulcan	$ 1,078.5	$ 928.3	$ 944.1
Basic earnings (loss) per share attributable to Vulcan
Continuing operations	$ 8.19	$ 6.95	$ 7.10
Discontinued operations	(0.03)	(0.06)	(0.08)
Net earnings	8.16	6.89	7.02
Diluted earnings (loss) per share attributable to Vulcan
Continuing operations	8.15	6.91	7.06
Discontinued operations	(0.04)	(0.06)	(0.08)
Net earnings	$ 8.11	$ 6.85	$ 6.98
Weighted-average common shares outstanding
Basic (in shares)	132.0	132.3	133.0
Assuming dilution (in shares)	132.7	133.1	133.7