v3.26.3
N-4
Dec. 31, 2025
Prospectus:  
Document Type N-4
Entity Registrant Name MASSACHUSETTS MUTUAL VARIABLE ANNUITY SEPARATE ACCOUNT 4
Entity Central Index Key 0001052766
Entity Investment Company Type N-4
Document Period End Date Dec. 31, 2025
Amendment Flag false
Item 17. Investment Options [Line Items]  
Investment Options (N-4) [Text Block]

 

 


Fund Type

 

 


Fund and Adviser/Sub-Adviser
Current Expenses (expenses/ average assets)

Average Annual Total Returns

(as of 12/31/2025)

1 Year 5 Year 10 Year
Large Cap Blend

MML Focused Equity Fund (Service Class I)

Adviser: MML Investment Advisers, LLC

Sub-Adviser: J.P. Morgan Investment Management Inc.

 1.02%(*) 7.75% 8.48% 12.23%
International/Global

MML Foreign Fund (Service Class)

Adviser: MML Investment Advisers, LLC

Sub-Adviser: Putnam Investment Management, LLC

 1.09% 32.36% 8.76% 6.46%
Variable Option [Line Items]  
Portfolio Companies [Table Text Block]

 

 


Fund Type

 

 


Fund and Adviser/Sub-Adviser
Current Expenses (expenses/ average assets)

Average Annual Total Returns

(as of 12/31/2025)

1 Year 5 Year 10 Year
Large Cap Blend

MML Focused Equity Fund (Service Class I)

Adviser: MML Investment Advisers, LLC

Sub-Adviser: J.P. Morgan Investment Management Inc.

 1.02%(*) 7.75% 8.48% 12.23%
International/Global

MML Foreign Fund (Service Class)

Adviser: MML Investment Advisers, LLC

Sub-Adviser: Putnam Investment Management, LLC

 1.09% 32.36% 8.76% 6.46%
MML Focused Equity Fund (Service Class I) [Member]  
Variable Option [Line Items]  
Portfolio Company Name [Text Block] MML Focused Equity Fund (Service Class I)
Portfolio Company Adviser [Text Block] MML Investment Advisers, LLC
Portfolio Company Subadviser [Text Block] J.P. Morgan Investment Management Inc.
Current Expenses [Percent] 1.02%
Average Annual Total Returns, 1 Year [Percent] 7.75%
Average Annual Total Returns, 5 Years [Percent] 8.48%
Average Annual Total Returns, 10 Years [Percent] 12.23%
MML Foreign Fund (Service Class) [Member]  
Variable Option [Line Items]  
Portfolio Company Name [Text Block] MML Foreign Fund (Service Class)
Portfolio Company Adviser [Text Block] MML Investment Advisers, LLC
Portfolio Company Subadviser [Text Block] Putnam Investment Management, LLC
Current Expenses [Percent] 1.09%
Average Annual Total Returns, 1 Year [Percent] 32.36%
Average Annual Total Returns, 5 Years [Percent] 8.76%
Average Annual Total Returns, 10 Years [Percent] 6.46%