CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) $ in Millions	Total	Common Stock	Additional Paid-in Capital	Treasury Stock	Retained Earnings	Accumulated Other Comprehensive Loss
Beginning balance (in shares) at Dec. 31, 2017		53,236,095
Beginning balance at Dec. 31, 2017	$ 834	$ 1	$ 257	$ (620)	$ 1,248	$ (52)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of treasury shares upon exercise of stock options, purchases under stock purchase plan and grants of restricted stock awards, net of cancellations (in shares)		162,827
Issuance of treasury shares upon exercise of stock options, purchases under stock purchase plan and grants of restricted stock awards, net of cancellations	3		(1)	4
Shares withheld related to net share settlement (in shares)		(2,293)
Shares withheld related to net share settlement	0			0
Share-based compensation	10		10
Net income	109				109
Unrealized gain (loss) on anticipated sales hedging transactions (net of income taxes)	(1)					(1)
Unrealized gain on forward interest rate swaps hedging transactions (net of income taxes)	5					5
Foreign currency translation adjustment	2					2
Ending balance (in shares) at Mar. 31, 2018		53,396,629
Ending balance at Mar. 31, 2018	981	$ 1	266	(616)	1,376	(46)
Beginning balance (in shares) at Dec. 31, 2018		53,871,184
Beginning balance at Dec. 31, 2018	1,335	$ 1	294	(613)	1,688	(35)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of treasury shares upon exercise of stock options, purchases under stock purchase plan and grants of restricted stock awards, net of cancellations (in shares)		110,382
Issuance of treasury shares upon exercise of stock options, purchases under stock purchase plan and grants of restricted stock awards, net of cancellations	4		1	3
Shares withheld related to net share settlement (in shares)		(5,829)
Shares withheld related to net share settlement	(1)			(1)
Share-based compensation	10		10
Net income	115				115
Unrealized gain (loss) on anticipated sales hedging transactions (net of income taxes)	4					4
Foreign currency translation adjustment	0
Ending balance (in shares) at Mar. 30, 2019		53,975,737
Ending balance at Mar. 30, 2019	$ 1,467	$ 1	$ 305	$ (611)	$ 1,803	$ (31)