Costs Associated with Exit and Restructuring Activities - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jul. 01, 2017	Jun. 30, 2018	Jul. 01, 2017
Restructuring Cost and Reserve [Line Items]
Exit and restructuring costs	$ 1	$ 1	$ 5	$ 5
Productivity Plan
Restructuring Cost and Reserve [Line Items]
Exit and restructuring costs	1		5
Restructuring and related cost, expected cost remaining (less than)	6		6
Severance, related benefits and, other expenses | Productivity Plan
Restructuring Cost and Reserve [Line Items]
Exit and restructuring charges, incurred life to date	$ 17		$ 17