v3.25.1
N-4
May 29, 2025
Prospectus:  
Document Type N-4
Entity Registrant Name Nationwide Variable Account-4
Entity Central Index Key 0000843075
Entity Investment Company Type N-4
Document Period End Date May 29, 2025
Amendment Flag false
Nationwide Destination SM Freedom+  
Prospectus:  
Item 17. Portfolio Companies (N-4) [Text Block] 1. The following underlying mutual fund is offered as an investment option under the contract. Effective June 18, 2025, the name of the investment option is updated as indicated below: 
CURRENT NAME
UPDATED NAME
Nationwide Variable Insurance Trust - NVIT Calvert Equity Fund:
Class II
Nationwide Variable Insurance Trust - NVIT GQG US Quality
Equity Fund: Class II
2. Effective on June 20, 2025, the following underlying mutual fund is added as an investment option under the contract. •Nationwide Variable Insurance Trust - NVIT Fidelity Institutional AM(R) Emerging Markets Fund: Class IAccordingly, Appendix A is amended to add the following: 
Type
Underlying Mutual Fund and Adviser/Subadviser
Current
Expenses
Average Annual Total
Returns
(as of 12/31/2024)
1 year
5 year
10 year
Equity
Nationwide Variable Insurance Trust - NVIT Fidelity Institutional AM®
Emerging Markets Fund: Class I I
Investment Advisor: Nationwide Fund Advisors
Investment Sub-Advisor: FIAM LLC
1.18%*
6.28%
-2.63%
1.30%
*This underlying mutual fund’s current expenses reflect a temporary fee reduction.3. Effective June 20, 2025, the following underlying mutual fund is no longer available to receive transfers or purchase payments.•Nationwide Variable Insurance Trust - NVIT Fidelity Institutional AM(R) Emerging Markets Fund: Class II
Portfolio Companies [Table Text Block]
Type
Underlying Mutual Fund and Adviser/Subadviser
Current
Expenses
Average Annual Total
Returns
(as of 12/31/2024)
1 year
5 year
10 year
Equity
Nationwide Variable Insurance Trust - NVIT Fidelity Institutional AM®
Emerging Markets Fund: Class I I
Investment Advisor: Nationwide Fund Advisors
Investment Sub-Advisor: FIAM LLC
1.18%*
6.28%
-2.63%
1.30%
Temporary Fee Reductions, Current Expenses [Text Block] This underlying mutual fund’s current expenses reflect a temporary fee reduction.
Nationwide Destination SM Freedom+ | NationwideVariableInsuranceTrustNVITFidelityInstitutionalAMEmergingMarketsFundClassIMember  
Prospectus:  
Portfolio Company Objective [Text Block] Equity
Current Expenses [Percent] 1.18%
Average Annual Total Returns, 1 Year [Percent] 6.28%
Average Annual Total Returns, 5 Years [Percent] (2.63%)
Average Annual Total Returns, 10 Years [Percent] 1.30%
Nationwide Destination SM Freedom+ | NationwideVariableInsuranceTrustNVITGQGUSQualityEquityFundClassIIMember  
Prospectus:  
Portfolio Company Name [Text Block] Nationwide Variable Insurance Trust - NVIT GQG US Quality Equity Fund: Class II
Nationwide Destination SM Freedom+ | NationwideVariableInsuranceTrustNVITFidelityInstitutionalAMEmergingMarketsFundClassIIMember  
Prospectus:  
Portfolio Company Name [Text Block] Nationwide Variable Insurance Trust - NVIT Fidelity Institutional AM® Emerging Markets Fund: Class I I
Portfolio Company Adviser [Text Block] Nationwide Fund Advisors
Portfolio Company Subadviser [Text Block] FIAM LLC