CONDENSED CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY - USD ($) shares in Millions, $ in Millions	Total	Common Stock Outstanding	Additional Paid-in Capital	Treasury Stock	Accumulated Other Comprehensive Income (Loss)	Retained Earnings
Beginning balance, common stock outstanding (in shares) at Jan. 27, 2019		606
Beginning balances, shareholders' equity at Jan. 27, 2019	$ 9,342	$ 1	$ 6,051	$ (9,263)	$ (12)	$ 12,565
Increase (Decrease) in Shareholders' Equity
Net income	947					947
Other comprehensive income (loss)	11				11
Issuance of common stock from stock plans (in shares)		5
Issuance of common stock from stock plans	83		83
Tax withholding related to vesting of restricted stock units (in shares)		(2)
Tax withholding related to vesting of restricted stock units	(261)			(261)
Cash dividends declared and paid	(195)					(195)
Stock-based compensation	409		409
Ending balance, common stock outstanding (in shares) at Jul. 28, 2019		609
Ending balances, shareholders' equity at Jul. 28, 2019	10,336	$ 1	6,543	(9,524)	(1)	13,317
Beginning balance, common stock outstanding (in shares) at Apr. 28, 2019		609
Beginning balances, shareholders' equity at Apr. 28, 2019	9,704	$ 1	6,317	(9,474)	(2)	12,862
Increase (Decrease) in Shareholders' Equity
Net income	552					552
Other comprehensive income (loss)	1				1
Tax withholding related to vesting of restricted stock units	(50)			(50)
Cash dividends declared and paid	(97)					(97)
Stock-based compensation	226		226
Ending balance, common stock outstanding (in shares) at Jul. 28, 2019		609
Ending balances, shareholders' equity at Jul. 28, 2019	10,336	$ 1	6,543	(9,524)	(1)	13,317
Beginning balance, common stock outstanding (in shares) at Jan. 26, 2020		612
Beginning balances, shareholders' equity at Jan. 26, 2020	12,204	$ 1	7,045	(9,814)	1	14,971
Increase (Decrease) in Shareholders' Equity
Net income	1,539					1,539
Other comprehensive income (loss)	3				3
Issuance of common stock from stock plans (in shares)		7
Issuance of common stock from stock plans	94		94
Tax withholding related to vesting of restricted stock units (in shares)		(2)
Tax withholding related to vesting of restricted stock units	(418)			(418)
Cash dividends declared and paid	(197)					(197)
Fair value of partially vested equity awards assumed in connection with acquisitions	86		86
Stock-based compensation	603		603
Ending balance, common stock outstanding (in shares) at Jul. 26, 2020		617
Ending balances, shareholders' equity at Jul. 26, 2020	13,914	$ 1	7,828	(10,232)	4	16,313
Beginning balance, common stock outstanding (in shares) at Apr. 26, 2020		615
Beginning balances, shareholders' equity at Apr. 26, 2020	13,099	$ 1	7,354	(10,036)	(10)	15,790
Increase (Decrease) in Shareholders' Equity
Net income	622					622
Other comprehensive income (loss)	14				14
Issuance of common stock from stock plans (in shares)		3
Issuance of common stock from stock plans	6		6
Tax withholding related to vesting of restricted stock units (in shares)		(1)
Tax withholding related to vesting of restricted stock units	(196)			(196)
Cash dividends declared and paid	(99)					(99)
Fair value of partially vested equity awards assumed in connection with acquisitions	86		86
Stock-based compensation	382		382
Ending balance, common stock outstanding (in shares) at Jul. 26, 2020		617
Ending balances, shareholders' equity at Jul. 26, 2020	$ 13,914	$ 1	$ 7,828	$ (10,232)	$ 4	$ 16,313