XML 101 R89.htm IDEA: XBRL DOCUMENT
v3.20.2

Derivatives - Derivative Instruments Designated as Cash Flow Hedges in OCI (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Oct. 31, 2020 | Nov. 02, 2019 | Oct. 31, 2020 | Nov. 02, 2019
Movement in Accumulated Other Comprehensive Income [Roll Forward] |  |  |  |
Current period gains (losses) recognized in OCI | $ 0.0 | $ 3.4 | $ 0.2 | $ 11.5
Losses (gains) reclassified from AOCI to net income | (1.8) | (0.5) | (13.4) | (1.0)
Cost of sales | (863.8) | (818.6) | (2,176.0) | (2,652.2)
Other operating income (loss) | (0.4) | 0.0 | 4.3 | 1.4
Interest expense, net | (9.1) | (8.6) | (25.6) | (27.9)
Cash Flow Hedging |  |  |  |
Movement in Accumulated Other Comprehensive Income [Roll Forward] |  |  |  |
Gains (losses) recorded in AOCI, beginning of period |  |  | 16.7 |
Gains (losses) recorded in AOCI, end of period | 3.5 | 15.8 | 3.5 | 15.8
Foreign currency contracts | Cash Flow Hedging |  |  |  |
Movement in Accumulated Other Comprehensive Income [Roll Forward] |  |  |  |
Gains (losses) recorded in AOCI, beginning of period | 0.0 | 1.7 | (1.0) | 0.7
Current period gains (losses) recognized in OCI | 0.0 | (1.7) | 1.6 | (0.1)
Gains (losses) recorded in AOCI, end of period | 0.0 | (0.3) | 0.0 | (0.3)
Commodity contracts | Cash Flow Hedging |  |  |  |
Movement in Accumulated Other Comprehensive Income [Roll Forward] |  |  |  |
Gains (losses) recorded in AOCI, beginning of period | 5.3 | 11.2 | 17.7 | 4.0
Current period gains (losses) recognized in OCI | 0.0 | 5.1 | (1.4) | 11.6
Gains (losses) recorded in AOCI, end of period | 3.5 | 16.1 | 3.5 | 16.1
Interest rate swaps | Cash Flow Hedging |  |  |  |
Movement in Accumulated Other Comprehensive Income [Roll Forward] |  |  |  |
Gains (losses) recorded in AOCI, beginning of period | 0.0 | 0.0 | 0.0 | 0.6
Gains (losses) recorded in AOCI, end of period | 0.0 | 0.0 | 0.0 | 0.0
Cost of sales | Foreign currency contracts | Cash Flow Hedging |  |  |  |
Movement in Accumulated Other Comprehensive Income [Roll Forward] |  |  |  |
Losses (gains) reclassified from AOCI to net income | 0.0 | (0.3) | 0.0 | (0.9)
Cost of sales | Commodity contracts | Cash Flow Hedging |  |  |  |
Movement in Accumulated Other Comprehensive Income [Roll Forward] |  |  |  |
Losses (gains) reclassified from AOCI to net income | (1.8) | (0.2) | (3.5) | 0.5
Other operating income (loss) | Foreign currency contracts | Cash Flow Hedging |  |  |  |
Movement in Accumulated Other Comprehensive Income [Roll Forward] |  |  |  |
Losses (gains) reclassified from AOCI to net income | 0.0 | 0.0 | (0.6) | 0.0
Other operating income (loss) | Commodity contracts | Cash Flow Hedging |  |  |  |
Movement in Accumulated Other Comprehensive Income [Roll Forward] |  |  |  |
Losses (gains) reclassified from AOCI to net income | 0.0 | 0.0 | (9.3) | 0.0
Interest expense, net | Interest rate swaps | Cash Flow Hedging |  |  |  |
Movement in Accumulated Other Comprehensive Income [Roll Forward] |  |  |  |
Losses (gains) reclassified from AOCI to net income | $ 0.0 | $ 0.0 | $ 0.0 | $ (0.6)

X
- Definition Movement in Accumulated Other Comprehensive Income [Roll Forward] + References No definition available. + Details
Name: | sig_MovementinAccumulatedOtherComprehensiveIncomeRollForward
Namespace Prefix: | sig_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount before tax of increase (decrease) in accumulated equity from transactions and other events and circumstances from non-owner sources, including portion attributable to noncontrolling interest. Excludes net income (loss), and accumulated changes in equity from transactions resulting from investments by owners (distributions to owners). + References No definition available. + Details
Name: | us-gaap_AccumulatedOtherComprehensiveIncomeLossBeforeTax1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The aggregate costs related to goods produced and sold and services rendered by an entity during the reporting period. This excludes costs incurred during the reporting period related to financial services rendered and other revenue generating activities. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 924 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 11.L) -URI http://asc.fasb.org/extlink&oid=6472922&loc=d3e499488-122856 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.2(a),(d)) -URI http://asc.fasb.org/extlink&oid=120395209&loc=SL114868664-224227 + Details
Name: | us-gaap_CostOfGoodsAndServicesSold
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of the cost of borrowed funds accounted for as interest expense. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6450988&loc=d3e26243-108391 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=119993939&loc=d3e28555-108399 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8736-108599 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (210.5-03(11)) -URI http://asc.fasb.org/extlink&oid=120395209&loc=SL114868664-224227 Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04.9) -URI http://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260 + Details
Name: | us-gaap_InterestExpense
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount, before tax and reclassification, of gain (loss) from derivative instrument designated and qualifying cash flow hedge included in assessment of hedge effectiveness. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 20 -Section 45 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=121577181&loc=SL110061190-113977 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4A -Subparagraph (b)(2) -URI http://asc.fasb.org/extlink&oid=121590274&loc=SL5618551-113959 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121590274&loc=SL5624171-113959 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=121641772&loc=d3e637-108580 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 10A -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=121641772&loc=SL7669646-108580 + Details
Name: | us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount, before tax, of reclassification of gain (loss) from accumulated other comprehensive income (AOCI) for derivative instrument designated and qualifying as cash flow hedge included in assessment of hedge effectiveness. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=121641772&loc=d3e689-108580 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=121641772&loc=d3e637-108580 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=121590274&loc=SL5624171-113959 + Details
Name: | us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationBeforeTax
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The net amount of other operating income and expenses, the components of which are not separately disclosed on the income statement, from items that are associated with the entity's normal revenue producing operations. + References No definition available. + Details
Name: | us-gaap_OtherOperatingIncomeExpenseNet
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis=us-gaap_CashFlowHedgingMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=us-gaap_ForeignExchangeContractMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=us-gaap_CommodityContractMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=us-gaap_InterestRateSwapMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_IncomeStatementLocationAxis=us-gaap_CostOfSalesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_IncomeStatementLocationAxis=us-gaap_OtherOperatingIncomeExpenseMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_IncomeStatementLocationAxis=us-gaap_InterestExpenseMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |