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.

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Period remaining on line of credit facility before it terminates, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

Name:	us-gaap_LineOfCreditFacilityExpirationPeriod
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.19(b),22(b))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

+ Details

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

- Definition

For the form of debt having an initial term of less than one year or less than the normal operating cycle, if longer, maximum month-end borrowings during the period.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(19))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

+ Details

Name:	us-gaap_ShorttermDebtMaximumMonthendOutstandingAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Details

Name:	us-gaap_CreditFacilityAxis=us-gaap_RevolvingCreditFacilityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=hd_BackUpCreditFacilityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=hd_A5YearBackUpCreditFacilityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=hd_FiveYearBackUpCreditFacilityExpiringDecember2020Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Debt and Derivative Instruments - Short-term Debt (Details) - USD ($)	6 Months Ended
	Aug. 02, 2020	Mar. 31, 2020	Feb. 29, 2020
Debt Instrument [Line Items]
Maximum borrowing capacity of credit facility		$ 6,000,000,000.0	$ 3,000,000,000.0
Maximum amount outstanding during period	$ 1,000,000,000.0
Revolving Credit Facility
Debt Instrument [Line Items]
Maximum borrowing capacity of credit facility	6,500,000,000
Revolving Credit Facility \| Back-up Credit Facility
Debt Instrument [Line Items]
Maximum borrowing capacity of credit facility	3,500,000,000
Revolving Credit Facility \| 5-year Back-up Credit Facility
Debt Instrument [Line Items]
Maximum borrowing capacity of credit facility	$ 1,000,000,000.0
Expiration period	364 days
Revolving Credit Facility \| Five year back up credit facility expiring December 2020
Debt Instrument [Line Items]
Maximum borrowing capacity of credit facility	$ 2,000,000,000.0
Expiration period	5 years