Derivative financial instruments - Net Investment Hedging Instruments in OCI (Details) - Net Investment Hedges - USD ($) $ in Millions |
3 Months Ended | |
|---|---|---|
Mar. 29, 2025 |
Mar. 30, 2024 |
|
| Derivative Instruments, Gain (Loss) | ||
| Total net fair value (loss) gain | $ (34.6) | $ 19.0 |
| —Designated cross currency swaps | ||
| Derivative Instruments, Gain (Loss) | ||
| Total net fair value (loss) gain | $ (34.6) | $ 19.0 |