Income taxes - Schedule of Deferred Tax Assets and Liabilities Non-Current (Details) - USD ($) $ in Millions	Dec. 31, 2025	Dec. 31, 2024
Income Tax Disclosure [Abstract]
Deferred income taxes, noncurrent assets	$ (120)	$ (101)
Deferred income taxes, noncurrent liabilities	3,511	3,105
Total net deferred tax liabilities	$ 3,391	$ 3,004