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Loans, overdrafts and long-term debt - Loans, overdrafts and long-term debt (Details) - USD ($) $ in Millions | May 02, 2020 | Feb. 01, 2020 | May 04, 2019
--- | --- | --- | ---
Debt Instrument [Line Items] |  |  |
Gross debt | $ 1,359.7 | $ 613.1 | $ 687.8
Less: Current portion of loans and overdrafts | (22.2) | (95.6) | (43.7)
Less: Unamortized debt issuance costs | (1.5) | (1.6) | (5.1)
Total long-term debt | 1,336.0 | 515.9 | 639.0
Other loans and bank overdrafts |  |  |
Debt Instrument [Line Items] |  |  |
Gross debt | 22.2 | 95.6 | 2.7
Senior Unsecured Notes Due in 2024 | Senior Unsecured Notes |  |  |
Debt Instrument [Line Items] |  |  |
Gross debt | 147.5 | 147.5 | 399.1
Senior Asset-Based Credit Facility | Line of Credit | Revolving Credit Facility |  |  |
Debt Instrument [Line Items] |  |  |
Gross debt | 1,090.0 | 270.0 | 0.0
Senior Asset-Based Credit Facility | Line of Credit | Term Loan Facility |  |  |
Debt Instrument [Line Items] |  |  |
Gross debt | 100.0 | 100.0 | 0.0
Credit Facility | Line of Credit | Term Loan Facility |  |  |
Debt Instrument [Line Items] |  |  |
Gross debt | $ 0.0 | $ 0.0 | $ 286.0

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