Income taxes - Schedule of Effective Income Tax Rate (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Income Tax Disclosure [Abstract]
U.S. statutory rate	$ 990	$ 843	$ 727
State tax, net of federal tax benefit	47	38	73
Tax rate differentials	27	(11)	(6)
Uncertain tax positions	62	87	60
Tax credits	(127)	(125)	(96)
Non-deductible goodwill impairment	10	75	0
Non-taxable divestiture of the European Lime operations	(65)	0	0
Other	141	18	4
Total tax expense	$ 1,085	$ 925	$ 762
Effective income tax rate	23.00%	23.00%	22.00%