Income Taxes Narrative (Details) - USD ($) $ / shares in Units, $ in Millions	6 Months Ended
	Jun. 16, 2018	Jun. 17, 2017	Dec. 30, 2017
Income Tax Disclosure [Abstract]
Federal Audit Settlement	$ 314
Federal Audit Settlement, Net of tax, Per share amount	$ 0.22
Federal Statutory Tax Rate, Pre TCJ Act			35.00%
Federal Statutory Tax Rate, Post TCJ Act	21.00%
Provisional net tax expense related to the TCJ Act	$ 778	$ 0
Transition tax	2,500
Additional Transition Tax	$ 777
Additional Transition Tax, Net of tax, Per share amount	$ 0.54