Accounts receivable, net - Allowance for Credit Losses (Details) - USD ($) $ in Millions	12 Months Ended
Feb. 01, 2020	Feb. 02, 2019	Feb. 03, 2018
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Reversal of allowance on receivables sold	$ 0.0	$ 160.4	$ (30.9)
Sterling Jewelers customer in-house finance receivables, net	34.4	19.5
Consumer Portfolio Segment
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	$ 0.0	(113.5)	(138.7)
Charge-offs, net		56.3	221.2
Recoveries		4.2	34.3
Provision		(54.6)	(251.0)
Reversal of allowance on receivables sold		107.6	20.7
Ending balance		0.0	(113.5)
Ending receivable balance evaluated for impairment		0.0	762.9
Sterling Jewelers customer in-house finance receivables, net		$ 0.0	$ 649.4

Financing Receivable, Allowance for Credit Losses, Reversal

No definition available.

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- Definition

Amount, after allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business, classified as current.

+ References

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- Definition

Amount of allowance for credit loss on financing receivable. Excludes allowance for financing receivable covered under loss sharing agreement.

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- Definition

Amount of recovery of financing receivables doubtful of collection that were previously charged off.

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- 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.

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- Definition

Amount of writeoff of financing receivable, charged against allowance for credit loss.

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- Definition

The balance of financing receivables that were collectively evaluated for impairment.

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- Definition

Amount of expense related loan transactions, lease transactions, credit loss from transactions other than loan and lease transactions, and other loss based on assessment of uncollectability from the counterparty to reduce the account to their net realizable value.

+ References

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