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Restructuring plans - Schedule of Plan Liabilities (Details) - USD ($) $ in Millions | 12 Months Ended | 48 Months Ended
--- | --- | ---
Jan. 29, 2022 | Jan. 30, 2021 | Feb. 01, 2020 | Jan. 29, 2022
Restructuring Reserve [Roll Forward] |  |  |  |
Charged to expense | $ (3.3) | $ 46.2 | $ 69.9 |
Signet Path to Brillance |  |  |  |
Restructuring Reserve [Roll Forward] |  |  |  |
Beginning balance | 10.2 | 12.4 | 12.6 |
Payments and other adjustments | (2.9) | (49.8) | (79.3) |
Charged to expense | (3.3) | 47.6 | 79.1 | $ 249.3
Ending balance | 4.0 | 10.2 | 12.4 | 4.0
Termination benefits | Signet Path to Brillance |  |  |  |
Restructuring Reserve [Roll Forward] |  |  |  |
Beginning balance | 2.1 | 2.0 | 0.0 |
Payments and other adjustments | (1.0) | (24.0) | (14.1) |
Charged to expense | (1.1) | 24.1 | 16.1 | 48.8
Ending balance | 0.0 | 2.1 | 2.0 | 0.0
Store closure and other costs | Signet Path to Brillance |  |  |  |
Restructuring Reserve [Roll Forward] |  |  |  |
Beginning balance | 8.1 | 10.4 | 12.6 |
Payments and other adjustments | (1.9) | (25.8) | (65.2) |
Charged to expense | (2.2) | 23.5 | 63.0 |
Ending balance | $ 4.0 | $ 8.1 | $ 10.4 | $ 4.0

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- Definition Carrying amount (including both current and noncurrent portions of the accrual) as of the balance sheet date pertaining to a specified type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b)(2) -URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB TOPIC 5.P.4(b)(2)) -URI http://asc.fasb.org/extlink&oid=115931487&loc=d3e140904-122747 + Details
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