BUSINESS SEGMENTS AND GEOGRAPHIC AREAS - Disaggregation of Net Sales (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jul. 03, 2021	Jun. 27, 2020	Jul. 03, 2021	Jun. 27, 2020
Segment Reporting Information [Line Items]
Net Sales	$ 4,300.9	$ 3,147.4	$ 8,498.0	$ 6,276.8
Industrial
Segment Reporting Information [Line Items]
Net Sales	602.2	517.5	1,259.9	1,108.2
Engineered Fastening | Industrial
Segment Reporting Information [Line Items]
Net Sales	456.5	351.7	953.3	776.4
Infrastructure business | Industrial
Segment Reporting Information [Line Items]
Net Sales	$ 145.7	$ 165.8	$ 306.6	$ 331.8