Restructuring, Impairment and Integration Charges (Summary of Charges) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 29, 2018	Dec. 30, 2017	Dec. 31, 2016
Restructuring Cost and Reserve [Line Items]
Restructuring, Settlement and Impairment Provisions	$ 308	$ 295	$ 160
Other Productivity Initiatives	8	16	12
Total restructuring and impairment charges and other productivity initiatives	316	311	172
2019 Productivity Plan [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring, Settlement and Impairment Provisions	138	0	0
2014 Productivity Plan
Restructuring Cost and Reserve [Line Items]
Restructuring, Settlement and Impairment Provisions	$ 170	$ 295	$ 160