Basis of presentation and accounting policies - Impairment, Goodwill, Balance sheet detail (Details) - USD ($) $ in Thousands	12 Months Ended
	Jan. 28, 2022	Jan. 29, 2021	Jan. 31, 2020
Impairment of long-lived assets
Minimum period for which stores are open to be reviewed for impairment	3 years
Impairment charges included in SG&A expense	$ 2,600	$ 2,700	$ 3,600
Goodwill and other intangible assets
Impairment of intangible assets	0	0	$ 0
Accrued expenses and other liabilities
Compensation and benefits	215,355	269,032
Self-insurance reserves	127,719	110,321
Taxes (other than taxes on income)	324,438	318,552
Other	381,627	308,647
Toal other accrued expenses and other liabilities	1,049,139	1,006,552
Other liabilities
Self-insurance reserves	129,692	134,765
Payroll tax liabilities		81,488
Other	68,305	47,438
Total other liabilities	$ 197,997	$ 263,691
Maximum initial term for leases not recorded on the balance sheet	12 months