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Impact of the COVID-19 Pandemic (Details)		1 Months Ended	3 Months Ended	6 Months Ended
	Aug. 10, 2020 USD ($)	Jul. 31, 2020 USD ($)	Aug. 01, 2020 USD ($) store	Aug. 01, 2020 USD ($) store	Aug. 03, 2019 USD ($)	Feb. 01, 2020 USD ($)
Unusual Risk or Uncertainty [Line Items]
Number of reopened stores (more than) | store			4,500	4,500
Cash and cash equivalents			$ 6,620,411,000	$ 6,620,411,000	$ 2,186,382,000	$ 3,216,752,000
Cash payments on revolving credit facilities				1,000,000,000	$ 0
Inventory reduction				400,000,000
Estimated markdown reversal			100,000,000
Expense reduction			$ 200,000,000	400,000,000
Accounts receivable net increase				100,000,000
Accrued expenses and other current liabilities				$ 200,000,000
Revolving Credit Facility | Subsequent Event
Unusual Risk or Uncertainty [Line Items]
Revolver, maximum borrowing capacity	$ 1,500,000,000
Revolving Credit Facility | Revolving Credit Facility Due August 2021 | Subsequent Event
Unusual Risk or Uncertainty [Line Items]
Revolver, maximum borrowing capacity	$ 500,000,000
Line of credit facility, expiration period	364 days
Revolving Credit Facility | Revolving Credit Facility Due March 11, 2022 And May 10, 2024
Unusual Risk or Uncertainty [Line Items]
Cash payments on revolving credit facilities		$ 1,000,000,000.0

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