Stockholders' Equity (Stock Repurchase Program) (Details) - USD ($) $ / shares in Units, shares in Thousands	3 Months Ended			6 Months Ended
	Jul. 31, 2020	Aug. 02, 2019		Jul. 31, 2020	Aug. 02, 2019		May 31, 2019
Class of Stock [Line Items]
Aggregate purchase price	$ 130,000,000	$ 446,000,000	[1]	$ 311,000,000	$ 1,037,000,000	[1]
Class A Common Stock
Class of Stock [Line Items]
Authorized repurchase amount under stock repurchase program	1,000,000,000.0			1,000,000,000.0			$ 1,500,000,000
Remaining authorized repurchase amount	1,700,000,000			1,700,000,000
Aggregate purchase price	$ 130,000,000	$ 446,000,000		$ 311,000,000	$ 1,037,000,000
Class A common shares repurchased (in shares)	919	2,431		2,459	5,695
Weighted-average price per share (in USD per share)	$ 141.04	$ 183.53		$ 126.30	$ 182.06

[1] Adjusted to reflect the recast of prior period information due to the Pivotal Software, Inc. (“Pivotal”) acquisition in fiscal 2020, which was accounted for as a transaction between entities under common control (refer to Note A).