XML 69 R53.htm IDEA: XBRL DOCUMENT v3.21.2

Debt - Additional Information (Details) - USD ($) $ in Millions		3 Months Ended
	Oct. 22, 2021	Oct. 01, 2021	Oct. 02, 2020
Debt Instrument [Line Items]
Repayment of debt		$ 213	$ 213
Variable interest rate Term Loan B-4 maturing 2023
Debt Instrument [Line Items]
Repayment of debt		$ 150
Variable interest rate Term Loan B-4 maturing 2023 | Subsequent Event
Debt Instrument [Line Items]
Repayment of debt	$ 943

X

- 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.

+ Details

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

X

- Definition

The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 15
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3291-108585

+ Details

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

X

- Details

Name:	us-gaap_DebtInstrumentAxis=wdc_U.S.TermLoanB4Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: