RESTRUCTURING AND RELATED CHARGES - Narrative (Details) $ in Millions	Jan. 02, 2022 USD ($)
Restructuring Cost and Reserve [Line Items]
Future costs to be incurred	$ 15.5
Cumulative costs	182.5
Global Productivity Improvement Plan
Restructuring Cost and Reserve [Line Items]
Expected restructuring and related charges	154.0
Future costs to be incurred	1.7
GPC Edwardsville 3PL transition
Restructuring Cost and Reserve [Line Items]
Future costs to be incurred	3.7
Cumulative costs	21.8
SAP S/4 HANA ERP transformation
Restructuring Cost and Reserve [Line Items]
Future costs to be incurred	10.1
Cumulative costs	$ 6.7