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Restructuring and Transformation Program - Costs Included in Selling, General & Administrative Expenses (Detail) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2025 | Jun. 30, 2024 | Jun. 30, 2025 | Jun. 30, 2024
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring costs | $ 15.5 | $ 5.3 | $ 25.2 | $ 10.3
Transformation costs | 22.8 | 11.8 | 37.1 | 28.8
Total restructuring and transformation costs | 38.3 | 17.1 | 62.3 | 39.1
Severance and related costs |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Transformation costs | 0.0 | 0.3 | 0.0 | 0.7
Asset impairment and write-offs |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Transformation costs | 10.3 | 0.0 | 15.5 | 0.0
Other transformation costs |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Transformation costs | 12.5 | 11.5 | 21.6 | 28.1
Severance and related costs |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring costs | 12.0 | 5.4 | 20.3 | 9.4
Other restructuring costs and related adjustments |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring costs | $ 3.5 | $ (0.1) | $ 4.9 | $ 0.9

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