Restructuring and Impairment Charges Narrative (Details) - 2014 Productivity Plan [Member] [Member] - USD ($) $ / shares in Units, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 16, 2018	Jun. 17, 2017	Jun. 16, 2018	Jun. 17, 2017
Restructuring Cost and Reserve [Line Items]
Restructuring, Settlement and Impairment Provisions	$ 32	$ 34	$ 44	$ 61
Restructuring, Settlement and Impairment Provisions, After Tax	$ 24	$ 31	$ 35	$ 58
Restructuring, Settlement and Impairment Provisions, Net of Tax, Per Share Amount	$ 0.02	$ 0.02	$ 0.02	$ 0.04