Restructuring and Cost Reduction Activities - Project K Anticipated Costs Narrative (Details) - Maximum [Member] - Project K [Member] $ in Millions	3 Months Ended
	Mar. 30, 2019 USD ($)
Restructuring Cost and Reserve [Line Items]
Restructuring and related costs, expected cost	$ 1,600
Estimated after-tax cash costs for program, including incremental capital investments	1,200
Asset related costs
Restructuring Cost and Reserve [Line Items]
Restructuring and related costs, expected cost	500
Employee related costs
Restructuring Cost and Reserve [Line Items]
Restructuring and related costs, expected cost	400
Other costs
Restructuring Cost and Reserve [Line Items]
Restructuring and related costs, expected cost	$ 700