XML 64 R52.htm IDEA: XBRL DOCUMENT v3.10.0.1
OTHER - Income Taxes (Narrative) (Details)
3 Months Ended 6 Months Ended
Jun. 24, 2018
Jun. 25, 2017
Jun. 24, 2018
Jun. 25, 2017
Accounting Policies [Abstract]        
Effective income tax rate 18.10% 28.80% 16.50% 26.60%