XML 82 R71.htm IDEA: XBRL DOCUMENT
v3.23.2

Income taxes - Narrative (Details) - USD ($) $ in Millions | 6 Months Ended
--- | ---
Jul. 29, 2023 | Jul. 30, 2022
Income Tax Disclosure [Abstract] |  |
Tax benefit due to reversal of foreign pension out of OCI | $ 4.1 | $ 25.2
Excess tax benefit from share based compensation | $ 7.7 | 13.0
Discrete tax benefits related to litigation charges |  | $ 47.7

X
- Definition Effective Income Tax Rate Reconciliation, Litigation Settlement, Amount + References No definition available. + Details
Name: | sig_EffectiveIncomeTaxRateReconciliationLitigationSettlementAmount
Namespace Prefix: | sig_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Effective Income Tax Rate Reconciliation, Reversal of Foreign Pension Out of Other Comprehensive Income, Amount + References No definition available. + Details
Name: | sig_EffectiveIncomeTaxRateReconciliationReversalOfForeignPensionOutOfOtherComprehensiveIncomeAmount
Namespace Prefix: | sig_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying domestic federal statutory income tax rate to pretax income (loss) from continuing operation, attributable to expense for award under share-based payment arrangement. Excludes expense determined to be nondeductible upon grant or after for award under share-based payment arrangement. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 12 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482685/740-10-50-12 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Name Accounting Standards Codification -Section 35 -Paragraph 2 -SubTopic 740 -Topic 718 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480887/718-740-35-2 + Details
Name: | us-gaap_EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_IncomeTaxDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration