Supplemental financial information - Other income (expense), net (OI&E) (Details) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Disclosure Text Block Supplement [Abstract]
Other income	[1]	$ 258	$ 529	$ 474
Other expense	[2]	(28)	(33)	(34)
Total		$ 230	$ 496	$ 440

[1] ncludes interest, royalty, lease and tax interest income.

[2] ncludes a portion of pension and other retiree benefit costs, lease expense, currency gains and losses and miscellaneous items.