Common stock transactions (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands		1 Months Ended	3 Months Ended				12 Months Ended
	Aug. 24, 2022	Apr. 07, 2023	Feb. 03, 2023	Oct. 28, 2022	Jul. 29, 2022	Apr. 29, 2022	Feb. 03, 2023	Jan. 28, 2022	Jan. 29, 2021
Common stock transactions
Aggregate purchase price							$ 2,748,014	$ 2,549,669	$ 2,466,434
Cash dividend paid (in dollars per share)			$ 0.55	$ 0.55	$ 0.55	$ 0.55	$ 2.20	$ 1.68	$ 1.44
Subsequent event
Common stock transactions
Cash dividend declared (in dollars per share)		$ 0.59
Common Stock
Common stock transactions
Shares acquired under share repurchase program							11,643	12,058	12,297
Aggregate purchase price							$ 10,188	$ 10,551	$ 10,760
Common Stock | Pursuant to Authorized Repurchase Program
Common stock transactions
Common stock repurchase program, increase in the authorized amount	$ 2,000,000
Common stock repurchase authorization	$ 16,000,000
Shares acquired under share repurchase program							11,600	12,100	12,300
Aggregate purchase price							$ 2,700,000	$ 2,500,000	$ 2,500,000