Commitments And Contingencies (Minimum Payments Required Under Purchase Obligations) (Details) $ in Millions	Dec. 31, 2022 USD ($)
Purchase Obligations And Contractual Agreements [Line Items]
2022	$ 135.8
2023	103.2
2024	588.9
2025	46.4
2026	596.4
Thereafter	820.9
Total Commitment	2,291.6
Purchase Obligations [Member]
Purchase Obligations And Contractual Agreements [Line Items]
2022	43.0
2023	9.7
2024	5.0
2025	0.0
2026	0.0
Thereafter	0.0
Total Commitment	57.7
transition tax commitment [Member]
Purchase Obligations And Contractual Agreements [Line Items]
2022	14.6
2023	19.4
2024	24.3
2025	0.0
2026	0.0
Thereafter	0.0
Total Commitment	58.3
Operating lease commitment [Member]
Purchase Obligations And Contractual Agreements [Line Items]
2022	5.6
2023	1.5
2024	0.1
2025	0.0
2026	0.0
Thereafter	0.0
Total Commitment	7.2
Senior Notes [Member]
Purchase Obligations And Contractual Agreements [Line Items]
2022	72.6
2023	72.6
2024	559.5
2025	46.4
2026	596.4
Thereafter	820.9
Total Commitment	$ 2,168.4

- Definition

Minimum amount of purchase arrangement in which the entity has agreed to expend funds to procure goods or services from a supplier.

+ References

No definition available.

+ Details

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

- Definition

Purchase obligations and contractual agreements due after fifth year.

+ References

No definition available.

+ Details

Name:	vrsn_PurchaseObligationsAndContractualAgreementsDueAfterFifthYear
Namespace Prefix:	vrsn_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Purchase obligations and contractual agreements due in fifth year.

+ References

No definition available.

+ Details

Name:	vrsn_PurchaseObligationsAndContractualAgreementsDueInFifthYear
Namespace Prefix:	vrsn_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Purchase obligations and contractual agreements due in fourth year.

+ References

No definition available.

+ Details

Name:	vrsn_PurchaseObligationsAndContractualAgreementsDueInFourthYear
Namespace Prefix:	vrsn_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Purchase obligations and contractual agreements due in second year.

+ References

No definition available.

+ Details

Name:	vrsn_PurchaseObligationsAndContractualAgreementsDueInSecondYear
Namespace Prefix:	vrsn_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Purchase obligations and contractual agreements due in third year.

+ References

No definition available.

+ Details

Name:	vrsn_PurchaseObligationsAndContractualAgreementsDueInThirdYear
Namespace Prefix:	vrsn_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Purchase obligations and contractual agreements due with in one year.

+ References

No definition available.

+ Details

Name:	vrsn_PurchaseObligationsAndContractualAgreementsDueWithInOneYear
Namespace Prefix:	vrsn_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Purchase Obligations And Contractual Agreements [Line Items]

+ References

No definition available.

+ Details

Name:	vrsn_PurchaseObligationsAndContractualAgreementsLineItems
Namespace Prefix:	vrsn_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	us-gaap_RecordedUnconditionalPurchaseObligationByCategoryOfItemPurchasedAxis=vrsn_PurchaseObligationsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RecordedUnconditionalPurchaseObligationByCategoryOfItemPurchasedAxis=vrsn_TransitiontaxcommitmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RecordedUnconditionalPurchaseObligationByCategoryOfItemPurchasedAxis=vrsn_OperatingleasecommitmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RecordedUnconditionalPurchaseObligationByCategoryOfItemPurchasedAxis=us-gaap_SeniorNotesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: