Revenues - Disaggregation of Revenue (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Oct. 31, 2020	Nov. 02, 2019	Oct. 31, 2020	Nov. 02, 2019
Disaggregation of Revenue [Line Items]
Revenue	$ 22,632	$ 18,665	$ 65,222	$ 54,713
Apparel and accessories
Disaggregation of Revenue [Line Items]
Revenue	3,927	3,564	10,630	10,510
Beauty and household essentials
Disaggregation of Revenue [Line Items]
Revenue	6,103	5,125	18,172	15,172
Food and beverage
Disaggregation of Revenue [Line Items]
Revenue	4,397	3,717	13,158	10,899
Hardlines
Disaggregation of Revenue [Line Items]
Revenue	3,377	2,460	9,959	7,348
Home furnishings and decor
Disaggregation of Revenue [Line Items]
Revenue	4,506	3,527	12,395	9,985
Other
Disaggregation of Revenue [Line Items]
Revenue	26	21	89	83
Sales
Disaggregation of Revenue [Line Items]
Revenue	22,336	18,414	64,403	53,997
Credit card profit sharing
Disaggregation of Revenue [Line Items]
Revenue	164	177	488	505
Other
Disaggregation of Revenue [Line Items]
Revenue	132	74	331	211
Other revenue
Disaggregation of Revenue [Line Items]
Revenue	$ 296	$ 251	$ 819	$ 716