Share Repurchase - Narrative (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended						6 Months Ended	9 Months Ended
	Oct. 31, 2020	May 02, 2020	Feb. 01, 2020	Nov. 02, 2019	Aug. 03, 2019	May 04, 2019	Feb. 01, 2020	Oct. 31, 2020	Nov. 02, 2019
Equity, Class of Treasury Stock [Line Items]
Number of shares purchased (in shares)	0.0			3.0				5.7	10.8
Stock repurchased and retired		$ 609	$ 157	$ 296	$ (59)	$ 277
Share Repurchase Program 2019
Equity, Class of Treasury Stock [Line Items]
Authorized shares for accelerated stock repurchase, low end				300					$ 300
Authorized shares for accelerated stock repurchase, high end				450					450
Settlement (payment) of purchase agreement			$ 127	$ (450)			$ 127		(450)
Number of shares purchased (in shares)			0.2	2.5
Shares receivable				$ 178					$ 178
Stock repurchased (in shares)							2.7
Prepaid repurchase amount			$ 323
Price paid per share (in dollars per share)							$ 117.64
Retained Earnings
Equity, Class of Treasury Stock [Line Items]
Stock repurchased and retired		$ 609	$ 335	295	$ 94	$ 277
Retained Earnings | Share Repurchase Program 2019
Equity, Class of Treasury Stock [Line Items]
Stock repurchased and retired				$ 272