Basis of presentation and accounting policies - Impairment, Goodwill, Balance sheet detail, Supply chain finance programs (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Jan. 31, 2025	Jan. 31, 2025	Feb. 02, 2024	Feb. 03, 2023
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	$ 118,912	$ 226,700	$ 6,700	$ 2,100
Impairment, Long-Lived Asset, Held-for-Use, Statement of Income or Comprehensive Income [Extensible Enumeration]		Selling, General and Administrative Expense	Selling, General and Administrative Expense	Selling, General and Administrative Expense
Goodwill and other intangible assets
Impairment of intangible assets		$ 0	$ 0	$ 0
Accrued expenses and other liabilities
Compensation and benefits	171,318	171,318	145,665
Self-insurance reserves	165,085	165,085	151,317
Taxes (other than taxes on income)	310,568	310,568	275,636
Other	398,885	398,885	399,272
Toal other accrued expenses and other liabilities	$ 1,045,856	1,045,856	971,890
Supplier finance programs
Beginning balance, February 2, 2024		$ 306,781
Supplier Finance Program, Obligation, Current, Statement of Financial Position [Extensible Enumeration]	Accounts Payable, Current, Toal other accrued expenses and other liabilities	Accounts Payable, Current, Toal other accrued expenses and other liabilities
Amounts added		$ 1,285,484
Amounts settled		(1,192,586)
Ending balance, January 31, 2025	$ 399,679	$ 399,679	306,781
Supplier Finance Program, Obligation, Current, Statement of Financial Position [Extensible Enumeration]	Accounts Payable, Current, Toal other accrued expenses and other liabilities	Accounts Payable, Current, Toal other accrued expenses and other liabilities
Other liabilities
Self-insurance reserves	$ 169,300	$ 169,300	156,600
Maximum initial term for leases not recorded on the balance sheet		12 months
Guarantee of Indebtedness of Others
Supplier finance programs
Beginning balance, February 2, 2024		$ 306,800
Ending balance, January 31, 2025	$ 399,700	$ 399,700	$ 306,800
Maximum payment period	150 days	150 days