Segment information - Consolidated Balance Sheet (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Assets
Total assets for reportable segments	$ 50,613	$ 47,469	$ 45,319
Cash and cash equivalents	3,720	6,341	5,936
Other current assets	749	478
Equity method investments	737	620
Other noncurrent assets, excluding segment assets	795	632
Liabilities
Total liabilities for reportable segments	27,763	25,848	22,279
Other current liabilities, excluding segment liabilities	1,577	2,072
Deferred income tax liabilities	3,105	2,738
Liabilities held for sale	0	375
Other noncurrent liabilities, excluding segment liabilities	2,319	2,196
Operating segments
Assets
Total assets for reportable segments	45,534	38,868	38,504
Liabilities
Total liabilities for reportable segments	9,771	10,169	8,883
Corporate, non-segment
Assets
Cash and cash equivalents	3,720	6,341	5,936
Restricted cash	39	0	0
Other current assets	446	193	134
Equity method investments	737	620	649
Assets held for sale	0	1,268	0
Other noncurrent assets, excluding segment assets	137	179	96
Liabilities
Other current liabilities, excluding segment liabilities	163	156	193
Total debt	13,968	11,642	9,636
Deferred income tax liabilities	3,105	2,738	2,885
Liabilities held for sale	0	375	0
Other noncurrent liabilities, excluding segment liabilities	756	768	682
Americas Materials Solutions | Operating segments
Assets
Total assets for reportable segments	21,474	17,534	17,615
Liabilities
Total liabilities for reportable segments	3,154	3,349	2,908
Americas Building Solutions | Operating segments
Assets
Total assets for reportable segments	9,049	7,961	7,749
Liabilities
Total liabilities for reportable segments	1,769	1,770	1,567
International Solutions | Operating segments
Assets
Total assets for reportable segments	15,011	13,373	13,140
Liabilities
Total liabilities for reportable segments	$ 4,848	$ 5,050	$ 4,408