v3.26.1
Fair value measurements - Schedule of Effect of Net Investment Hedges (Details) - USD ($)
$ in Millions
3 Months Ended
Mar. 29, 2026
Mar. 30, 2025
Derivative Instruments, Gain (Loss) [Line Items]    
Gain/(Loss) Recognized In Accumulated OCI $ 213 $ (316)
Other Income Expense Net    
Derivative Instruments, Gain (Loss) [Line Items]    
Amount of gain or (loss) reclassified from AOCI into income 0 0
Cross Currency Interest Rate Contract    
Derivative Instruments, Gain (Loss) [Line Items]    
Gain/(Loss) Recognized In Accumulated OCI 217 840
Cross Currency Interest Rate Contract | Other Income Expense Net    
Derivative Instruments, Gain (Loss) [Line Items]    
Amount of gain or (loss) reclassified from AOCI into income $ 0 $ 0