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Amount, after tax and reclassification, of gain (loss) from derivative instrument designated and qualifying as cash flow hedge included in assessment of hedge effectiveness.

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Number of shares used to settle grantee's tax withholding obligation for award under share-based payment arrangement.

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CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) $ in Millions	Total	Common Stock	Additional Paid-in Capital	Treasury Stock	Retained Earnings	Accumulated Other Comprehensive Loss	Foreign exchange contracts	Foreign exchange contracts Accumulated Other Comprehensive Loss	Forward interest rate swaps	Forward interest rate swaps 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)		521,585
Issuance of treasury shares upon exercise of stock options, purchases under stock purchase plan and grants of restricted stock awards, net of cancellations	5		(8)	13
Shares withheld related to net share settlement (in shares)		(65,702)
Shares withheld related to net share settlement	(10)			(10)
Share-based compensation	24		24
Net income	179				179
Changes in unrealized gain and losses on sales hedging transactions and forward interest rate swap hedging transactions (net of income taxes)							$ 22	$ 22	$ 7	$ 7
Foreign currency translation adjustment	(7)					(7)
Ending balance (in shares) at Jun. 30, 2018		53,691,978
Ending balance at Jun. 30, 2018	1,073	$ 1	273	(617)	1,446	(30)
Beginning balance (in shares) at Mar. 31, 2018		53,396,629
Beginning balance at Mar. 31, 2018	981	$ 1	266	(616)	1,376	(46)
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)		358,758
Issuance of treasury shares upon exercise of stock options, purchases under stock purchase plan and grants of restricted stock awards, net of cancellations	2		(7)	9
Shares withheld related to net share settlement (in shares)		(63,409)
Shares withheld related to net share settlement	(10)			(10)
Share-based compensation	14		14
Net income	70				70
Changes in unrealized gain and losses on sales hedging transactions and forward interest rate swap hedging transactions (net of income taxes)							23	23	2	2
Foreign currency translation adjustment	(9)					(9)
Ending balance (in shares) at Jun. 30, 2018		53,691,978
Ending balance at Jun. 30, 2018	1,073	$ 1	273	(617)	1,446	(30)
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)		455,449
Issuance of treasury shares upon exercise of stock options, purchases under stock purchase plan and grants of restricted stock awards, net of cancellations	8		(4)	12
Shares withheld related to net share settlement (in shares)		(218,804)
Shares withheld related to net share settlement	(42)			(42)
Share-based compensation	24		24
Net income	239				239
Changes in unrealized gain and losses on sales hedging transactions and forward interest rate swap hedging transactions (net of income taxes)							(8)	(8)	1	1
Foreign currency translation adjustment	2					2
Ending balance (in shares) at Jun. 29, 2019		54,107,829
Ending balance at Jun. 29, 2019	1,559	$ 1	314	(643)	1,927	(40)
Beginning balance (in shares) at Mar. 30, 2019		53,975,737
Beginning balance at Mar. 30, 2019	1,467	$ 1	305	(611)	1,803	(31)
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)		345,067
Issuance of treasury shares upon exercise of stock options, purchases under stock purchase plan and grants of restricted stock awards, net of cancellations	4		(5)	9
Shares withheld related to net share settlement (in shares)		(212,975)
Shares withheld related to net share settlement	(41)			(41)
Share-based compensation	14		14
Net income	124				124
Changes in unrealized gain and losses on sales hedging transactions and forward interest rate swap hedging transactions (net of income taxes)							$ (12)	$ (12)	$ 1	$ 1
Foreign currency translation adjustment	2					2
Ending balance (in shares) at Jun. 29, 2019		54,107,829
Ending balance at Jun. 29, 2019	$ 1,559	$ 1	$ 314	$ (643)	$ 1,927	$ (40)