Restructuring and Cost Reduction Activities - Project K Program Costs Since Inception Narrative (Details) - Project K [Member] $ in Millions	Mar. 30, 2019 USD ($)
Restructuring Cost and Reserve [Line Items]
Restructuring and related costs since inception of program	$ 1,528
Revenue
Restructuring Cost and Reserve [Line Items]
Restructuring and related costs since inception of program	6
COGS
Restructuring Cost and Reserve [Line Items]
Restructuring and related costs since inception of program	899
Selling, General and Administrative Expenses
Restructuring Cost and Reserve [Line Items]
Restructuring and related costs since inception of program	790
Other (income) expense, net
Restructuring Cost and Reserve [Line Items]
Restructuring and related costs since inception of program	$ (167)