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Fair Value Measurements - Carrying Value and Fair Value of Debt (Detail) - USD ($) $ in Millions	Sep. 27, 2025	Dec. 28, 2024
Carrying Value [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]
Total Debt	$ 2,654.5	$ 2,673.3
Carrying Value [Member] | Senior Notes [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]
Total Debt	2,175.5	2,673.3
Carrying Value [Member] | Commercial Paper Borrowings [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]
Total Debt	479.0	0.0
Fair Value [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]
Total Debt	2,583.8	2,522.5
Fair Value [Member] | Senior Notes [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]
Total Debt	2,104.8	2,522.5
Fair Value [Member] | Commercial Paper Borrowings [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]
Total Debt	$ 479.0	$ 0.0

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