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Income taxes - Components of Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Millions | Jan. 29, 2022 | Jan. 30, 2021
--- | --- | ---
Assets |  |
Foreign property, plant and equipment | $ 7.1 | $ 7.3
Revenue deferral | 88.6 | 95.6
Derivative instruments |  | 0.3
Lease liabilities | 284.3 | 331.5
Deferred compensation | 7.7 | 6.7
Retirement benefit obligations | 1.5 |
Share-based compensation | 8.4 | 4.4
Other temporary differences | 42.4 | 57.2
Net operating losses and foreign tax credits | 84.3 | 56.5
Value of capital losses | 16.9 | 13.9
Total gross deferred tax assets (liabilities) | 541.2 | 573.4
Valuation allowance | (27.9) | (83.9)
Deferred tax assets (liabilities) | 513.3 | 489.5
(Liabilities) |  |
Intangible assets | (77.0) | (41.7)
US property, plant and equipment | (60.2) | (55.3)
Inventory valuation | (237.8) | (230.4)
Lease assets | (261.9) | (295.1)
Retirement benefit obligations |  | (9.8)
Total gross deferred tax assets (liabilities) | (636.9) | (632.3)
Total |  |
Total gross deferred tax assets (liabilities) | (95.7) | (58.9)
Valuation allowance | (27.9) | (83.9)
Deferred tax liabilities, net | (123.6) | (142.8)
Deferred tax assets | 37.3 | 16.4
Non-current liabilities | $ (160.9) | $ (159.2)

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