Basis of presentation and accounting policies (Details) $ in Millions |
3 Months Ended | 6 Months Ended | 12 Months Ended | |||
|---|---|---|---|---|---|---|
|
Jul. 31, 2026
USD ($)
|
Aug. 01, 2025
USD ($)
|
Jul. 31, 2026
USD ($)
|
Aug. 01, 2025
USD ($)
|
Jan. 29, 2027
period
|
Jan. 30, 2026
USD ($)
period
|
|
| Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] | ||||||
| Fiscal year, number of weeks | period | 52 | 52 | ||||
| Merchandise inventories | ||||||
| LIFO provision | $ 16.8 | $ 62.3 | $ 25.3 | $ 74.6 | ||
| Supply Chain Finance Program | ||||||
| Merchandise inventories | ||||||
| Supply chain finance program obligation | $ 406.3 | $ 406.3 | $ 385.2 | |||