Income Taxes - Narrative (Details) - USD ($)	12 Months Ended
	Jan. 31, 2020	Feb. 01, 2019	Feb. 02, 2018
Valuation Allowance [Line Items]
Deferred tax assets, capital loss carryforwards	$ 225,000,000	$ 223,000,000
Deferred tax assets, valuation allowance	561,000,000	569,000,000
Unrecognized tax benefits that would impact effective tax rate	3,000,000	8,000,000
Interest on tax uncertainties	0	3,000,000	$ (3,000,000)
Accrued interest on uncertain tax positions	1,000,000	3,000,000
Canada Revenue Agency | RONA Inc
Valuation Allowance [Line Items]
Deferred tax assets, valuation allowance	72,000,000
Foreign Tax Authority
Valuation Allowance [Line Items]
Deferred tax assets, valuation allowance	246,000,000	331,000,000
Cumulative net operating losses	738,000,000	$ 800,000,000
Hydrox Holdings Pty Ltd.
Valuation Allowance [Line Items]
Deferred tax assets, capital loss carryforwards	$ 225,000,000