Fair Value Measurements - Schedule of Significant Financial Instruments not Measured at Fair Value (Details) - USD ($) $ in Millions	Aug. 01, 2020	Feb. 01, 2020	Aug. 03, 2019
Carrying Amount
Financial Instruments, Balance Sheet Groupings
Long-term debt, including current portion	$ 12,384	$ 9,992	$ 10,244
Fair Value
Financial Instruments, Balance Sheet Groupings
Long-term debt, including current portion	$ 15,457	$ 11,864	$ 11,635

Fair value portion of debt instrument payable, including, but not limited to, notes payable and loans payable.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 10
-URI http://asc.fasb.org/extlink&oid=121572278&loc=d3e13433-108611

Name:	us-gaap_DebtInstrumentFairValue
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant