Integration and Restructuring Expenses Restructuring Costs Excluded from Segments (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 29, 2018	Dec. 30, 2017	Dec. 31, 2016
Segment Reporting Information [Line Items]
Restructuring and related cost, incurred cost	$ 460	$ 434	$ 1,012
United States
Segment Reporting Information [Line Items]
Restructuring and related cost, incurred cost	205	270	759
Canada
Segment Reporting Information [Line Items]
Restructuring and related cost, incurred cost	176	34	45
EMEA
Segment Reporting Information [Line Items]
Restructuring and related cost, incurred cost	16	56	85
Rest of World
Segment Reporting Information [Line Items]
Restructuring and related cost, incurred cost	25	13	6
General corporate expenses
Segment Reporting Information [Line Items]
Restructuring and related cost, incurred cost	$ 38	$ 61	$ 117