v3.26.1
Income taxes - Provision for Income Taxes (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Income Tax Disclosure [Abstract]        
Taxes calculated using the estimated annual effective tax rate $ 309 $ 199 $ 538 $ 365
Discrete tax items (51) (16) (111) (85)
Provision for income taxes $ 258 $ 183 $ 427 $ 280
Effective tax rate 12.00% 12.00% 11.00% 10.00%