Exit and Restructuring Costs (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 27, 2020	Jun. 29, 2019	Jun. 27, 2020	Jun. 29, 2019
Restructuring Cost and Reserve [Line Items]
Exit and restructuring costs	$ 2	$ 1	$ 6	$ 2
Estimated remaining costs	5		5
2019 Productivity Plan
Restructuring Cost and Reserve [Line Items]
Exit and restructuring costs	2		6
Exit and restructuring charges - cumulative	14		14
Estimated remaining costs	$ 4		$ 4