Debt Instrument, Redemption Price Per One Thousand Dollars Of Principal Amount Redeemed

No definition available.

Name:	sig_DebtInstrumentRedemptionPricePerOneThousandDollarsOfPrincipalAmountRedeemed
Namespace Prefix:	sig_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Line of Credit Facility, Additional Borrowing Capacity

+ References

No definition available.

+ Details

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Namespace Prefix:	sig_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

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+ Details

Name:	us-gaap_DebtInstrumentFaceAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

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+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

+ References

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The cash outflow for a long-term debt where the holder has highest claim on the entity's asset in case of bankruptcy or liquidation during the period.

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+ Details

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Balance Type:	credit
Period Type:	duration

- Details

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- Details

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- Details

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- Details

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- Details

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- Details

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Loans, Overdrafts and Long-term Debt - Narrative (Details) - USD ($)	Sep. 05, 2019	Jul. 30, 2022	Jul. 28, 2021	Sep. 27, 2019	Sep. 06, 2019	May 19, 2014
Senior Unsecured Notes Due in 2024 \| Senior Unsecured Notes
Debt Instrument [Line Items]
Face amount					$ 147,800,000
Repayments of senior debt	$ 239,600,000
Redemption price per $1,000 of principal amount	$ 950.00
Senior Unsecured Notes Due in 2024 \| Senior Unsecured Notes \| Signet UK Finance plc
Debt Instrument [Line Items]
Face amount						$ 400,000,000
Stated interest rate						4.70%
Senior Asset-Based Credit Facility \| Line of Credit \| Revolving Credit Facility
Debt Instrument [Line Items]
Credit facility, maximum borrowing capacity				$ 1,500,000,000
Additional borrowing capacity			$ 600,000,000
Available borrowing capacity		$ 1,300,000,000
Senior Asset-Based Credit Facility \| Line of Credit \| Term Loan Facility
Debt Instrument [Line Items]
Face amount				$ 100,000,000