Segment information - Schedule of Activity by Segment (Details) - USD ($) $ in Millions	12 Months Ended
	Feb. 01, 2025	Feb. 03, 2024	Jan. 28, 2023
Segment Reporting Information [Line Items]
Total sales	$ 6,703.8	$ 7,171.1	$ 7,842.1
Cost of sales	(4,078.2)	(4,345.7)	(4,790.0)
Selling, general and administrative expenses	(2,122.6)	(2,197.7)	(2,214.6)
Total segment operating income (loss)	110.7	621.5	604.9
Asset impairments, net	(372.0)	(9.1)	(22.7)
Restructuring charges	(11.5)	(7.5)	0.0
Gain (loss) on divestitures	(2.6)	12.3	0.0
Gain (Loss) from Litigation Settlement	0.0	(3.0)	203.8
Interest income (expense), net	9.8	18.7	(13.5)
Other non-operating income (expense), net	3.7	(0.4)	(140.2)
Income before income taxes	124.2	639.8	451.2
Merchandise expense
Segment Reporting Information [Line Items]
Total sales	5,958.6	6,429.6	7,135.5
Services expense
Segment Reporting Information [Line Items]
Total sales	745.2	741.5	706.6
Reportable segments
Segment Reporting Information [Line Items]
Total segment operating income (loss)	498.1	642.8	850.4
Corporate and unallocated
Segment Reporting Information [Line Items]
Selling, general and administrative expenses	(51.3)	(59.5)	(70.3)
Segment Reporting, Other Segment Item, Amount	(0.5)	(0.9)	(0.2)
Total segment operating income (loss)	(51.8)	(60.4)	(70.5)
Segment Reporting, Reconciling Item, Excluding Corporate Nonsegment
Segment Reporting Information [Line Items]
Asset impairments, net	(369.2)	(7.1)	(15.9)
Restructuring charges	(12.1)	(7.5)
Gain (loss) on divestitures	(2.6)	12.3
Leadership transition costs	(2.4)
Business Combination, Integration Related Costs	(1.1)	(22.0)	(25.8)
Gain (Loss) from Litigation Settlement		(3.0)	203.8
North America
Segment Reporting Information [Line Items]
Total sales	6,299.1	6,703.8	7,289.5
North America | Services expense
Segment Reporting Information [Line Items]
Total sales	721.3	715.2	680.4
North America | Reportable segments
Segment Reporting Information [Line Items]
Total sales	6,299.1	6,703.8	7,289.5
Selling, general and administrative expenses	(1,964.7)	(2,004.0)	(2,011.1)
Segment Reporting, Other Segment Item, Amount	(8.6)	(5.6)	(9.5)
Total segment operating income (loss)	551.2	709.4	918.7
North America | Reportable segments | Merchandise expense
Segment Reporting Information [Line Items]
Cost of sales	(2,499.7)	(2,701.6)	(3,028.2)
North America | Reportable segments | Services expense
Segment Reporting Information [Line Items]
Cost of sales	(166.3)	(167.2)	(165.8)
North America | Reportable segments | Other cost of sales
Segment Reporting Information [Line Items]
Cost of sales	(1,108.6)	(1,116.0)	(1,156.2)
North America | Canada | Reportable segments
Segment Reporting Information [Line Items]
Total sales	197.8	196.0	209.1
International
Segment Reporting Information [Line Items]
Total sales	373.2	430.7	470.1
International | Services expense
Segment Reporting Information [Line Items]
Total sales	23.9	26.3	26.2
International | Reportable segments
Segment Reporting Information [Line Items]
Total sales	373.2	430.7	470.1
Selling, general and administrative expenses	(103.1)	(113.6)	(120.8)
Segment Reporting, Other Segment Item, Amount	0.3	(0.1)	(3.0)
Total segment operating income (loss)	9.5	2.0	(0.2)
International | Reportable segments | Merchandise expense
Segment Reporting Information [Line Items]
Cost of sales	(158.3)	(192.5)	(211.5)
International | Reportable segments | Services expense
Segment Reporting Information [Line Items]
Cost of sales	(9.4)	(12.1)	(12.3)
International | Reportable segments | Other cost of sales
Segment Reporting Information [Line Items]
Cost of sales	(93.2)	(110.4)	(122.7)
Other
Segment Reporting Information [Line Items]
Total sales	31.5	36.6	82.5
Other | Services expense
Segment Reporting Information [Line Items]
Total sales	0.0	0.0	0.0
Other | Reportable segments
Segment Reporting Information [Line Items]
Total sales	31.5	36.6	82.5
Segment Reporting, Other Segment Item, Amount	(0.2)	(0.3)	(0.2)
Total segment operating income (loss)	(10.8)	(8.2)	2.4
Other | Reportable segments | Merchandise expense
Segment Reporting Information [Line Items]
Cost of sales	(38.3)	(41.5)	(76.0)
Other | Reportable segments | Other cost of sales
Segment Reporting Information [Line Items]
Cost of sales	$ (3.8)	$ (3.0)	$ (3.9)