Integration and Restructuring Expenses Restructuring Costs Excluded from Segments (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Oct. 02, 2016	Sep. 27, 2015	Oct. 02, 2016	Sep. 27, 2015
Segment Reporting Information [Line Items]
Restructuring and related cost, incurred costs	$ 237	$ 482	$ 781	$ 587
United States
Segment Reporting Information [Line Items]
Restructuring and related cost, incurred costs	161	365	607	405
Canada
Segment Reporting Information [Line Items]
Restructuring and related cost, incurred costs	16	39	43	51
Europe
Segment Reporting Information [Line Items]
Restructuring and related cost, incurred costs	4	72	32	106
Rest of World
Segment Reporting Information [Line Items]
Restructuring and related cost, incurred costs	1	1	1	10
Non-Operating
Segment Reporting Information [Line Items]
Restructuring and related cost, incurred costs	$ 55	$ 5	$ 98	$ 15