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Supplemental Cash Flow Information
 9 Months Ended
Sep. 29, 2017
Supplemental Cash Flow Information [Abstract]  
Supplemental Cash Flow Information
21. Supplemental Cash Flow Information
Year-to-Date Ended
September 29,
2017
September 23,
2016
(in millions)
Interest paid on outstanding debt
$
120
 
$
120
 
Income tax payments
$
129
 
$
85
 
Income tax refunds
$
9
 
$
4