v3.26.1
Fair value measurements - Schedule of Effect of Net Investment Hedges (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 28, 2026
Jun. 29, 2025
Jun. 28, 2026
Jun. 29, 2025
Derivative Instruments, Gain (Loss) [Line Items]        
Gain/(Loss) Recognized In Accumulated OCI $ 163 $ (803) $ 376 $ (1,119)
Income Statement Location [Axis]: us-gaap:InvestmentIncomeInterest        
Derivative Instruments, Gain (Loss) [Line Items]        
Amount of gain or (loss) reclassified from AOCI into income 0 0 0 0
Cross Currency Interest Rate Contract        
Derivative Instruments, Gain (Loss) [Line Items]        
Gain/(Loss) Recognized In Accumulated OCI 128 (700) 345 140
Cross Currency Interest Rate Contract | Income Statement Location [Axis]: us-gaap:InvestmentIncomeInterest        
Derivative Instruments, Gain (Loss) [Line Items]        
Amount of gain or (loss) reclassified from AOCI into income $ 0 $ 0 $ 0 $ 0