Revenue recognition - ESP and Voucher Promotions (Details) - USD ($) $ in Millions	Feb. 01, 2025	Feb. 03, 2024	Jan. 28, 2023	Jan. 29, 2022
Deferred Revenue Warranty [Roll Forward]
Total deferred revenue	$ 1,247.6	$ 1,244.7
Current liabilities	362.5	362.9
Non-current liabilities	885.1	881.8
ESP deferred revenue
Deferred Revenue Warranty [Roll Forward]
Total deferred revenue	1,170.8	1,158.7	$ 1,159.5	$ 1,116.5
Other deferred revenue
Deferred Revenue Warranty [Roll Forward]
Total deferred revenue	$ 76.8	$ 86.0