Summary of Significant Accounting Policies - Percentage of Net Sales by Category (Details)	12 Months Ended
	Jan. 29, 2022	Jan. 30, 2021	Feb. 01, 2020
Grocery
Disaggregation of Revenue [Line Items]
Revenue recognized	71.00%	77.00%	72.00%
General merchandise and services
Disaggregation of Revenue [Line Items]
Revenue recognized	14.00%	14.00%	15.00%
Gasoline and other
Disaggregation of Revenue [Line Items]
Revenue recognized	15.00%	9.00%	13.00%