Supplemental Cash Flow Information (Tables)

3 Months Ended

Mar. 30, 2018

Supplemental Cash Flow Elements [Abstract]

Supplemental Cash Flow Information

	First Quarter Ended
	March 30, 2018		March 31, 2017
	(in millions)
Interest paid	$	37	$	37
Income tax payments	$	21	$	20
Income tax refunds	$	2	$	5