Exit and Restructuring Costs (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 28, 2020	Mar. 30, 2019
Restructuring Cost and Reserve [Line Items]
Exit and restructuring costs	$ 4	$ 1
Estimated remaining costs	7
2019 Productivity Plan
Restructuring Cost and Reserve [Line Items]
Exit and restructuring costs	4
Exit and restructuring charges - cumulative	12
Estimated remaining costs	$ 6