Condensed Consolidated Statements of Stockholders' Equity Statement - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	AOCI Attributable to Parent [Member]
Common Stock Outstanding, beginning balance (in shares) at Mar. 31, 2018		253,377
Beginning balance at Mar. 31, 2018	$ 2,360,353	$ 2,534	$ 878,672	$ 1,513,656	$ (34,509)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	405,750			405,750
Other comprehensive loss	(14,628)				(14,628)
Tax withholding related to vesting of restricted stock units and other (in shares)		2,064
Tax withholding related to vesting of restricted stock units and other	(21,078)	$ 21	(21,099)
Repurchase and retirement of common stock (in shares)		(2,422)
Repurchase and retirement of common stock, including settlement of stock repurchase agreement	(160,536)	$ (25)	(21,508)	$ (139,003)
Stock-based compensation expense	$ 70,553		70,553
Cash dividends declared	$ (0.72)			$ 0.72
Common Stock Outstanding, ending balance (in shares) at Sep. 29, 2018		253,019
Ending balance at Sep. 29, 2018	$ 2,444,886	$ 2,530	906,618	$ 1,576,476	(40,738)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Dividends, Common Stock, Cash	181,752			181,752
Common Stock Outstanding, beginning balance (in shares) at Jun. 30, 2018		251,450
Beginning balance at Jun. 30, 2018	2,318,639	$ 2,515	894,588	1,457,467	(35,931)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	215,712			215,712
Other comprehensive loss	(4,807)				(4,807)
Tax withholding related to vesting of restricted stock units and other (in shares)		1,921
Tax withholding related to vesting of restricted stock units and other	(15,797)	$ 19	(15,816)
Repurchase and retirement of common stock (in shares)		(352)
Repurchase and retirement of common stock, including settlement of stock repurchase agreement	(12,729)	$ (4)	(7,099)	$ (5,626)
Stock-based compensation expense	$ 34,945		34,945
Cash dividends declared	$ (0.36)			$ 0.36
Common Stock Outstanding, ending balance (in shares) at Sep. 29, 2018		253,019
Ending balance at Sep. 29, 2018	$ 2,444,886	$ 2,530	906,618	$ 1,576,476	(40,738)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Dividends, Common Stock, Cash	91,077			91,077
Common Stock Outstanding, beginning balance (in shares) at Mar. 30, 2019		253,891
Beginning balance at Mar. 30, 2019	2,861,509	$ 2,539	1,005,411	1,876,969	(23,410)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	468,452			468,452
Other comprehensive loss	6,274				6,274
Tax withholding related to vesting of restricted stock units and other (in shares)		2,018
Tax withholding related to vesting of restricted stock units and other	(51,976)	$ 20	(51,996)
Repurchase and retirement of common stock (in shares)		(4,443)
Repurchase and retirement of common stock, including settlement of stock repurchase agreement	(493,484)	$ (44)	(67,768)	$ (425,672)
Stock-based compensation expense	$ 92,575		92,575
Cash dividends declared	$ (0.74)			$ 0.74
Common Stock Outstanding, ending balance (in shares) at Sep. 28, 2019		251,466
Ending balance at Sep. 28, 2019	$ 2,695,905	$ 2,515	978,222	$ 1,732,304	(17,136)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Dividends, Common Stock, Cash	187,445			187,445
Common Stock Outstanding, beginning balance (in shares) at Jun. 29, 2019		251,020
Beginning balance at Jun. 29, 2019	2,612,584	$ 2,510	880,305	1,743,241	(13,472)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	226,993			226,993
Other comprehensive loss	(3,664)				(3,664)
Tax withholding related to vesting of restricted stock units and other (in shares)		1,921
Tax withholding related to vesting of restricted stock units and other	(47,856)	$ 20	(47,876)
Repurchase and retirement of common stock (in shares)		(1,475)
Repurchase and retirement of common stock, including settlement of stock repurchase agreement	(48,490)	$ (15)	95,971	$ (144,446)
Stock-based compensation expense	$ 49,822		49,822
Cash dividends declared	$ (0.37)			$ 0.37
Common Stock Outstanding, ending balance (in shares) at Sep. 28, 2019		251,466
Ending balance at Sep. 28, 2019	$ 2,695,905	$ 2,515	$ 978,222	$ 1,732,304	$ (17,136)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Dividends, Common Stock, Cash	$ 93,484			$ 93,484