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Inventories - Schedule of Inventory Reserves (Details) - USD ($) $ in Millions	12 Months Ended
	Feb. 03, 2024	Jan. 28, 2023	Jan. 29, 2022
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at beginning of period	$ 27.7	$ 46.8	$ 52.9
Balance at end of period	16.7	27.7	46.8
SEC Schedule, 12-09, Reserve, Inventory
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Charged to income	37.6	63.6	101.8
Utilization	(48.6)	(82.7)	(107.9)
Signet Path to Brillance
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Utilization	$ 0.0	$ 0.0	$ (2.2)

X

- Definition

Amount of valuation reserve for inventory.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(6))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 330
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SAB TOPIC 5.BB)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480581/330-10-S99-2

+ Details

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X

- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

+ References

No definition available.

+ Details

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X

- Definition

Amount of increase in valuation and qualifying accounts and reserves from charge to cost and expense.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 235
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 4
-Subparagraph (SX 210.12-09(Column C)(1))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480678/235-10-S99-4

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X

- Definition

Amount of decrease in valuation and qualifying accounts and reserves.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 235
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 4
-Subparagraph (SX 210.12-09(Column D))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480678/235-10-S99-4

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