FAIR VALUE MEASUREMENTS - Summary of Financial Instruments Carrying and Fair Values (Detail) - USD ($) $ in Millions	Sep. 26, 2020	Dec. 28, 2019
Carrying Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Other investments	$ 13.3	$ 14.4
Long-term debt, including current portion	4,661.6	3,179.5
Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Other investments	13.9	14.8
Long-term debt, including current portion	$ 5,403.3	$ 3,601.0