Restructuring - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Jan. 01, 2023	Jan. 02, 2022
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 489	$ 275	$ 209
R&D Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Restructuring charges	479
R&D Restructuring Plan | Minimum
Restructuring Cost and Reserve [Line Items]
Pre-tax restructuring charges	500
R&D Restructuring Plan | Maximum
Restructuring Cost and Reserve [Line Items]
Pre-tax restructuring charges	600
Orthopaedics Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Restructuring charges	319
Orthopaedics Restructuring Plan | Minimum
Restructuring Cost and Reserve [Line Items]
Pre-tax restructuring charges	700
Orthopaedics Restructuring Plan | Maximum
Restructuring Cost and Reserve [Line Items]
Pre-tax restructuring charges	$ 800