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Organization and summary of significant accounting policies - Narrative (Details) $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Jan. 30, 2021 | Jan. 30, 2021 USD ($) segment | Feb. 01, 2020 USD ($) | Feb. 02, 2019 USD ($)
Organization and critical accounting policies [Abstract] |  |  |  |
Number of reportable segments | segment |  | 3 |  |
Selling, General and Administrative Expense [Abstract] |  |  |  |
Labor and related expense |  | $ 996.1 | $ 1,196.6 | $ 1,251.2
Advertising and promotional costs [Abstract] |  |  |  |
Advertising expense |  | $ 343.0 | $ 388.9 | $ 387.8
Minimum |  |  |  |
Organization and critical accounting policies [Abstract] |  |  |  |
Percent of annual sales | 35.00% |  |  |
Property, Plant and Equipment [Abstract] |  |  |  |
Period over which amortization is charged for capitalized payroll for internal use computer projects |  | 3 years |  |
Maximum |  |  |  |
Organization and critical accounting policies [Abstract] |  |  |  |
Percent of annual sales | 40.00% |  |  |
Property, Plant and Equipment [Abstract] |  |  |  |
Period over which amortization is charged for capitalized payroll for internal use computer projects |  | 7 years |  |

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- Definition Amount charged to advertising expense for the period, which are expenses incurred with the objective of increasing revenue for a specified brand, product or product line. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 720 -SubTopic 35 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6420018&loc=d3e36677-107848 + Details
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