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 Loss	Retained Earnings
Beginning balance, common stock outstanding (in shares) at Oct. 28, 2018		611
Beginning balances, shareholders' equity at Jan. 28, 2018	$ 7,471	$ 1	$ 5,351	$ (6,650)	$ (18)	$ 8,787
Increase (Decrease) in Shareholders' Equity
Other comprehensive income (loss)	(6)				(6)
Net income	3,575					3,575
Convertible debt conversion (in shares)		1
Issuance of common stock from stock plans (in shares)		13
Issuance of common stock from stock plans	134		134
Tax withholding related to vesting of restricted stock units (in shares)		(4)
Tax withholding related to vesting of restricted stock units	(982)			(982)
Share repurchase (in shares)		(4)
Share repurchase	(855)			(855)
Exercise of convertible note hedges (in shares)		(1)
Exercise of convertible note hedges	0		2	(2)
Cash dividends declared and paid	(274)					(274)
Stock-based compensation	404		404
Ending balance, common stock outstanding (in shares) at Jan. 28, 2018		606
Ending balances, shareholders' equity at Oct. 28, 2018	9,475	$ 1	5,891	(8,489)	(24)	12,096
Beginning balance, common stock outstanding (in shares) at Oct. 28, 2018		611
Beginning balances, shareholders' equity at Jul. 29, 2018	8,795	$ 1	5,681	(7,821)	(23)	10,957
Increase (Decrease) in Shareholders' Equity
Other comprehensive income (loss)	(1)				(1)
Net income	1,230					1,230
Convertible debt conversion (in shares)		1
Issuance of common stock from stock plans (in shares)		6
Issuance of common stock from stock plans	65		65
Tax withholding related to vesting of restricted stock units (in shares)		(2)
Tax withholding related to vesting of restricted stock units	(467)			(467)
Share repurchase (in shares)		(1)
Share repurchase	(200)			(200)
Exercise of convertible note hedges (in shares)		(1)
Exercise of convertible note hedges			1	(1)
Cash dividends declared and paid	(91)					(91)
Stock-based compensation	144		144
Ending balance, common stock outstanding (in shares) at Jul. 29, 2018		608
Ending balances, shareholders' equity at Oct. 28, 2018	9,475	$ 1	5,891	(8,489)	(24)	12,096
Beginning balance, common stock outstanding (in shares) at Oct. 27, 2019		612
Beginning balances, shareholders' equity at Jan. 27, 2019	9,342	$ 1	6,051	(9,263)	(12)	12,565
Increase (Decrease) in Shareholders' Equity
Other comprehensive income (loss)	9				9
Net income	1,845					1,845
Issuance of common stock from stock plans (in shares)		9
Issuance of common stock from stock plans	146		146
Tax withholding related to vesting of restricted stock units (in shares)		(3)
Tax withholding related to vesting of restricted stock units	(463)			(463)
Cash dividends declared and paid	(292)					(292)
Stock-based compensation	627		627
Ending balance, common stock outstanding (in shares) at Jan. 27, 2019		606
Ending balances, shareholders' equity at Oct. 27, 2019	11,214	$ 1	6,824	(9,726)	(3)	14,118
Beginning balance, common stock outstanding (in shares) at Oct. 27, 2019		612
Beginning balances, shareholders' equity at Jul. 28, 2019	10,336	$ 1	6,543	(9,524)	(1)	13,317
Increase (Decrease) in Shareholders' Equity
Other comprehensive income (loss)	(2)				(2)
Net income	899					899
Issuance of common stock from stock plans (in shares)		4
Issuance of common stock from stock plans	63		63
Tax withholding related to vesting of restricted stock units (in shares)		(1)
Tax withholding related to vesting of restricted stock units	(202)			(202)
Cash dividends declared and paid	(98)					(98)
Stock-based compensation	218		218
Ending balance, common stock outstanding (in shares) at Jul. 28, 2019		609
Ending balances, shareholders' equity at Oct. 27, 2019	$ 11,214	$ 1	$ 6,824	$ (9,726)	$ (3)	$ 14,118