v3.26.1
Income taxes (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 28, 2026
Jun. 29, 2025
Jun. 28, 2026
Jun. 29, 2025
Income Tax Contingency        
Worldwide effective income tax rate (as a percent)     15.50% 17.80%
Effective income tax rate reconciliation, tax settlement, percent   22.00%    
Unrecognized tax benefits $ 2,700   $ 2,700  
Reduction in effective income tax rate     2.90% 0.30%
Talc | General Corporate        
Income Tax Contingency        
Reversal of fee expense   $ 7,000   $ 7,000
Litigation expense $ 400   $ 800