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Segments - Products and Services (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 30, 2023	Dec. 31, 2022	Jan. 01, 2022
Revenue from External Customer [Line Items]
Net sales	$ 5,108.3	$ 4,842.5	$ 4,601.7
Total net sales
Revenue from External Customer [Line Items]
Net sales	4,730.2	4,492.8	4,252.0
Total net sales | Tools
Revenue from External Customer [Line Items]
Net sales	2,528.9	2,399.4	2,343.0
Total net sales | Diagnostics, information and management systems
Revenue from External Customer [Line Items]
Net sales	991.2	942.4	892.5
Total net sales | Equipment
Revenue from External Customer [Line Items]
Net sales	1,210.1	1,151.0	1,016.5
Financial services revenue
Revenue from External Customer [Line Items]
Net sales	$ 378.1	$ 349.7	$ 349.7

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