Consolidated Statements of Earnings - USD ($) shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Revenues	$ 6,536	$ 6,777	$ 6,161
Total cost of revenues	4,658	4,754	4,738
Gross Profit	1,878	2,023	1,423
Selling, general and administrative expenses	447	443	397
Acquisition, divestiture and integration expenses	50	12	9
Other operating income, net	(1,326)	(28)	(190)
Earnings from Operations	2,707	1,596	1,207
Interest expense	169	165	169
Other nonoperating income, net	(58)	(62)	(53)
Earnings from continuing operations before income tax expense	2,596	1,493	1,091
Income tax expense	600	293	235
Earnings from continuing operations	1,996	1,200	856
(Loss) Earnings from discontinued operations, net of income tax (benefit) expense	0	(30)	11
Consolidated net earnings	1,996	1,170	867
Less: Net earnings attributable to noncontrolling interests	1	1	0
Net Earnings Attributable to Martin Marietta	$ 1,995	$ 1,169	$ 867
Net Earnings (Loss) Attributable to Martin Marietta Per Common Share (see Note A)
Basic earnings per share from continuing operations attributable to common shareholders	$ 32.5	$ 19.38	$ 13.74
Basic (loss) earnings per share from discontinued operations attributable to common shareholders	0	(0.5)	0.17
Basic attributable to common shareholders	32.5	18.88	13.91
Diluted earnings per share from continuing operations attributable to common shareholders	32.41	19.32	13.7
Diluted (loss) earnings per share from discontinued operations attributable to common shareholders	0	(0.5)	0.17
Diluted attributable to common shareholders	$ 32.41	$ 18.82	$ 13.87
Weighted-Average Common Shares Outstanding
Basic	61.4	61.9	62.3
Diluted	61.6	62.1	62.5