Fair Value Measurements - Assets and Liabilities Measured on a Non-Recurring Basis (Details) $ in Millions	3 Months Ended	6 Months Ended
	Aug. 03, 2018 USD ($)	Aug. 03, 2018 USD ($)
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis [Line Items]
Costs Incurred	$ 230	$ 230
Long-lived asset impairments
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis [Line Items]
Costs Incurred	206	206
Orchard Supply Hardware
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis [Line Items]
Costs Incurred	230
Orchard Supply Hardware | Long-lived asset impairments
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis [Line Items]
Costs Incurred	206
Fair Value, Measurements, Nonrecurring | Estimate of Fair Value | Fair Value (Level 3) | Orchard Supply Hardware
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis [Line Items]
Fair value measurement	$ 284	$ 284