Income taxes - Schedule of Income before Income Tax, Domestic and Foreign (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Income Tax Disclosure [Abstract]
U.S.	$ 2,761	$ 3,069	$ 2,729
Non-U.S.	2,044	1,645	1,285
Income before income tax expense and income from equity method investments	$ 4,805	$ 4,714	$ 4,014