Condensed Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Statement of Comprehensive Income [Abstract]
Net income	$ 1,309	$ 1,212	$ 1,423	$ 1,181
Other comprehensive (loss) income, net of tax:
Currency translation adjustment	(49)	49	(197)	147
Net change in fair value of effective portion of cash flow hedges, net of tax of $(4) million and $(3) million for the three months ended June 30, 2024 and June 30, 2023, respectively; and $2 million and $(3) million for the six months ended June 30, 2024 and June 30, 2023, respectively	19	(7)	(18)	24
Actuarial gains (losses) and prior service credits (costs) for pension and other postretirement plans, net of tax of $nil million and $nil million for the three months ended June 30, 2024 and June 30, 2023, respectively; and $1 million and $nil million for the six months ended June 30, 2024 and June 30, 2023, respectively	2	0	(1)	(3)
Other comprehensive (loss) income	(28)	42	(216)	168
Comprehensive income	1,281	1,254	1,207	1,349
Comprehensive (income) attributable to redeemable noncontrolling interests	(10)	(10)	(12)	(12)
Comprehensive loss (income) attributable to noncontrolling interests	10	3	21	(4)
Comprehensive income attributable to CRH plc	$ 1,281	$ 1,247	$ 1,216	$ 1,333