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Debt And Interest Expense Debt and Interest Expense (Senior Notes) (Narrative) (Details)	Dec. 31, 2022 Rate
Due 2031 [Member]
Debt Instrument [Line Items]
Debt instrument, issue percentage	99.712%

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

Debt instrument, issue percentage

+ References

No definition available.

+ Details

Name:	vrsn_DebtInstrumentIssuePercentage
Namespace Prefix:	vrsn_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

X

- Details

Name:	us-gaap_DebtInstrumentAxis=vrsn_Due2031Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: