Property and Leases - Components of Lease Costs (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Aug. 02, 2020	Aug. 04, 2019	Aug. 02, 2020	Aug. 04, 2019
Lessee, Lease, Description [Line Items]
Amortization of leased assets	$ 36	$ 22	$ 67	$ 43
Interest on lease liabilities	26	23	52	46
Net lease cost	335	328	663	662
Selling, general and administrative
Lessee, Lease, Description [Line Items]
Operating lease cost	193	205	388	415
Short-term lease cost	19	18	37	43
Variable lease cost	65	64	126	122
Sublease income	$ (4)	$ (4)	$ (7)	$ (7)

Amount of interest expense on finance lease liability.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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-Section 50
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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-Publisher FASB
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- Definition

Amount of amortization expense attributable to right-of-use asset from finance lease.

+ References

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- Definition

Amount of lease cost recognized by lessee for lease contract.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

Amount of single lease cost, calculated by allocation of remaining cost of lease over remaining lease term. Includes, but is not limited to, single lease cost, after impairment of right-of-use asset, calculated by amortization of remaining right-of-use asset and accretion of lease liability.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
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-Topic 842
-SubTopic 20
-Section 55
-Paragraph 53
-URI http://asc.fasb.org/extlink&oid=121568110&loc=SL77918982-209971

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- Definition

Amount of short-term lease cost, excluding expense for lease with term of one month or less.

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- Definition

Amount of sublease income excluding finance and operating lease expense.

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- Definition

Amount of variable lease cost, excluded from lease liability, recognized when obligation for payment is incurred for finance and operating leases.

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