Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Statement of Comprehensive Income [Abstract]
Net income	$ 3,790	$ 3,521	$ 3,072
Other comprehensive income (loss), net of tax:
Currency translation adjustment	713	(470)	310
Net change in fair value of effective portion of cash flow hedges, net of tax of $(4) million, $3 million, and $1 million in 2025, 2024, and 2023, respectively	15	(16)	(28)
Actuarial gains (losses) and prior service credits (costs) for pension and other postretirement plans, net of tax of $(34) million, $(4) million, and $17 million in 2025, 2024, and 2023, respectively	64	44	(108)
Other comprehensive income (loss)	792	(442)	174
Comprehensive income	4,582	3,079	3,246
Comprehensive (income) attributable to redeemable noncontrolling interests	(28)	(28)	(28)
Comprehensive (income) loss attributable to noncontrolling interests	(53)	52	131
Comprehensive income attributable to CRH	$ 4,501	$ 3,103	$ 3,349