Condensed Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2026	Mar. 31, 2025
Statement of Comprehensive Income [Abstract]
Net loss	$ (180)	$ (98)
Other comprehensive (loss) income, net of tax:
Currency translation adjustment	(89)	238
Net change in fair value of effective portion of cash flow hedges, net of tax of $(7) million and $2 million for the three months ended March 31, 2026, and March 31, 2025, respectively	6	(23)
Actuarial losses and prior service credits for pension and other postretirement plans, net of tax of $nil million and $1 million for the three months ended March 31, 2026, and March 31, 2025, respectively	(1)	(7)
Other comprehensive (loss) income	(84)	208
Comprehensive (loss) income	(264)	110
Comprehensive (income) attributable to noncontrolling interests	(8)	(5)
Comprehensive (loss) income attributable to CRH	$ (272)	$ 105