Restructuring and Cost Reduction Activities Project K Total Expected Program Costs Narrative (Details) - Maximum - Project K $ in Millions	12 Months Ended
	Jan. 02, 2021 USD ($)
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost	$ 1,600
Estimated after-tax cash costs for the program amount	1,200
Asset related costs
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost	500
Employee related cost
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost	400
Other cost
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost	$ 700