Derivative financial instruments - Net Investment Hedging Instruments in OCI (Details) - Net Investment Hedges - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 29, 2024 |
Jul. 01, 2023 |
Jun. 29, 2024 |
Jul. 01, 2023 |
|
| Derivative Instruments, Gain (Loss) | ||||
| Total net fair value gains (losses) | $ 6.9 | $ (9.9) | $ 25.9 | $ (22.1) |
| —Designated cross currency swaps | ||||
| Derivative Instruments, Gain (Loss) | ||||
| Total net fair value gains (losses) | $ 6.9 | $ (9.9) | $ 25.9 | $ (22.1) |