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Restructuring charges, separation costs and impairment charges - Summary of Our Cost Estimates and Other Information (Details) $ in Millions | 3 Months Ended | 6 Months Ended | 14 Months Ended | 22 Months Ended
--- | --- | --- | --- | ---
Jun. 29, 2025 USD ($) | Jun. 29, 2025 USD ($) | Jun. 29, 2025 USD ($) | Jun. 29, 2025 USD ($)
2024 Footprint realignment plan |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Aggregate restructuring charges |  |  | $ 13.5 |
Restructuring reserve | $ 10.3 | $ 10.3 | 10.3 | $ 10.3
Restructuring expenses | 2.4 | 6.2 | 12.8 |
2024 Footprint realignment plan | Minimum |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Expected restructuring charges | 37.0 | 37.0 | 37.0 | 37.0
Expected cash outlays | 31.0 | 31.0 | 31.0 | 31.0
Capital expenditures, expected cash outlays | 15.0 | 15.0 | 15.0 | 15.0
2024 Footprint realignment plan | Maximum |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Expected restructuring charges | 46.0 | 46.0 | 46.0 | 46.0
Expected cash outlays | 38.0 | 38.0 | 38.0 | 38.0
Capital expenditures, expected cash outlays | 17.0 | 17.0 | 17.0 | 17.0
2024 Footprint realignment plan | Special Termination Benefit And Other Restructuring | Minimum |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Expected restructuring charges | 16.0 | 16.0 | 16.0 | 16.0
2024 Footprint realignment plan | Special Termination Benefit And Other Restructuring | Maximum |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Expected restructuring charges | 20.0 | 20.0 | 20.0 | 20.0
2024 Footprint realignment plan | Accelerated Depreciation And Other Costs | Minimum |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Expected restructuring charges | 21.0 | 21.0 | 21.0 | 21.0
2024 Footprint realignment plan | Accelerated Depreciation And Other Costs | Maximum |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Expected restructuring charges | 26.0 | 26.0 | 26.0 | 26.0
2023 Footprint realignment plan |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Aggregate restructuring charges |  |  |  | 3.2
Restructuring reserve | 2.9 | 2.9 | 2.9 | 2.9
Restructuring expenses | 0.9 | 1.5 |  | 4.2
2023 Footprint realignment plan | Minimum |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Expected restructuring charges | 11.0 | 11.0 | 11.0 | 11.0
Expected cash outlays | 11.0 | 11.0 | 11.0 | 11.0
Capital expenditures, expected cash outlays | 2.0 | 2.0 | 2.0 | 2.0
2023 Footprint realignment plan | Maximum |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Expected restructuring charges | 15.0 | 15.0 | 15.0 | 15.0
Expected cash outlays | 15.0 | 15.0 | 15.0 | 15.0
Capital expenditures, expected cash outlays | 3.0 | 3.0 | 3.0 | 3.0
2023 Footprint realignment plan | Special Termination Benefit And Other Restructuring | Minimum |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Expected restructuring charges | 4.0 | 4.0 | 4.0 | 4.0
2023 Footprint realignment plan | Special Termination Benefit And Other Restructuring | Maximum |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Expected restructuring charges | 6.0 | 6.0 | 6.0 | 6.0
2023 Footprint realignment plan | Accelerated Depreciation And Other Costs | Minimum |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Expected restructuring charges | 7.0 | 7.0 | 7.0 | 7.0
2023 Footprint realignment plan | Accelerated Depreciation And Other Costs | Maximum |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Expected restructuring charges | $ 9.0 | $ 9.0 | $ 9.0 | $ 9.0

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