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Restructuring plans - Schedule of Plan Liabilities (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended | 45 Months Ended
--- | --- | --- | ---
Oct. 30, 2021 | Oct. 31, 2020 | Oct. 30, 2021 | Oct. 31, 2020 | Oct. 30, 2021
Restructuring Reserve [Roll Forward] |  |  |  |  |
Charged (credited) to expense | $ (1.7) | $ 3.6 | $ (3.3) | $ 45.2 |
Signet Path to Brilliance |  |  |  |  |
Restructuring Reserve [Roll Forward] |  |  |  |  |
Beginning balance |  |  | 10.2 |  |
Payments and other adjustments |  |  | (2.6) |  |
Charged (credited) to expense | (1.7) | $ 5.6 | (3.3) | $ 46.6 | $ 249.3
Ending balance | 4.3 |  | 4.3 |  | 4.3
Termination benefits | Signet Path to Brilliance |  |  |  |  |
Restructuring Reserve [Roll Forward] |  |  |  |  |
Beginning balance |  |  | 2.1 |  |
Payments and other adjustments |  |  | (0.9) |  |
Charged (credited) to expense | 0.0 |  | (1.1) |  | 48.8
Ending balance | 0.1 |  | 0.1 |  | 0.1
Store closure and other costs | Signet Path to Brilliance |  |  |  |  |
Restructuring Reserve [Roll Forward] |  |  |  |  |
Beginning balance |  |  | 8.1 |  |
Payments and other adjustments |  |  | (1.7) |  |
Charged (credited) to expense |  |  | (2.2) |  |
Ending balance | $ 4.2 |  | $ 4.2 |  | $ 4.2

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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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