| Shareholder Report | 6 Months Ended |
| Jun. 30, 2024 USD ($) $ / shares |
| Shareholder Report [Line Items] | | |
| Document Type | N-CSRS | |
| Amendment Flag | false | |
| Registrant Name | MML
Series Investment Fund | |
| Entity Central Index Key | 0000067160 | |
| Entity Investment Company Type | N-1A | |
| Document Period End Date | Jun. 30, 2024 | |
| Initial Class | | |
| Shareholder Report [Line Items] | | |
| Fund Name | MML Conservative Allocation Fund | |
| Class Name | Initial Class | |
| No Trading Symbol Flag | true | |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about the MML Conservative Allocation Fund (the “Fund”) for the period of January 1, 2024 to June 30, 2024. | |
| Shareholder Report Annual or Semi-Annual | semi-annual shareholder report | |
| Additional Information [Text Block] | You can find additional information about the Fund at https://www.massmutual.com/product-performance/variable-insurance-funds . You can also request this information by contacting us at 1-888-309-3539 or by sending an email request to fundinfo massmutual.com . | |
| Additional Information Phone Number | 1-888-309-3539 | |
| Additional Information Email | fundinfo@massmutual.com | |
| Additional Information Website | https://www.massmutual.com/product-performance/variable-insurance-funds | |
| Expenses [Text Block] | WHAT WERE THE FUND COSTS FOR THE LAST SIX MONTHS? This example shows the expenses you would have paid over the past six months, based on a hypothetical $10,000 investment. This table reflects any applicable waivers or expense limitations.
Class Name
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
Initial Class
$7
0.14% | |
| Expenses Paid, Amount | $ 7 | |
| Expense Ratio, Percent | 0.14% | |
| Net Assets | $ 256,600,000 | |
| Holdings Count | $ / shares | 24 | |
| Investment Company Portfolio Turnover | 3% | |
| Additional Fund Statistics [Text Block] | WHAT ARE SOME KEY FUND STATISTICS? (as of June 30, 2024)
Total Net Assets (Millions)
$256.6
Total Number of Portfolio Holdings (includes derivative positions, if any)
24
Portfolio Turnover Rate
3% | |
| Holdings [Text Block] | Sectors (% of Total Investments)
Fixed Income Funds
60.0%
Equity Funds
40.0% | |
| Updated Prospectus Web Address | https://www.massmutual.com/product-performance/variable-insurance-funds | |
| Service Class | | |
| Shareholder Report [Line Items] | | |
| Fund Name | MML Conservative Allocation Fund | |
| Class Name | Service Class | |
| No Trading Symbol Flag | true | |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about the MML Conservative Allocation Fund (the “Fund”) for the period of January 1, 2024 to June 30, 2024. | |
| Shareholder Report Annual or Semi-Annual | semi-annual shareholder report | |
| Additional Information [Text Block] | You can find additional information about the Fund at https://www.massmutual.com/product-performance/variable-insurance-funds . You can also request this information by contacting us at 1-888-309-3539 or by sending an email request to fundinfo massmutual.com . | |
| Additional Information Phone Number | 1-888-309-3539 | |
| Additional Information Email | fundinfo@massmutual.com | |
| Additional Information Website | https://www.massmutual.com/product-performance/variable-insurance-funds | |
| Expenses [Text Block] | WHAT WERE THE FUND COSTS FOR THE LAST SIX MONTHS? This example shows the expenses you would have paid over the past six months, based on a hypothetical $10,000 investment. This table reflects any applicable waivers or expense limitations.
Class Name
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
Service Class
$20
0.39% | |
| Expenses Paid, Amount | $ 20 | |
| Expense Ratio, Percent | 0.39% | |
| Net Assets | $ 256,600,000 | |
| Holdings Count | $ / shares | 24 | |
| Investment Company Portfolio Turnover | 3% | |
| Additional Fund Statistics [Text Block] | WHAT ARE SOME KEY FUND STATISTICS? (as of June 30, 2024)
Total Net Assets (Millions)
$256.6
Total Number of Portfolio Holdings (includes derivative positions, if any)
24
Portfolio Turnover Rate
3% | |
| Holdings [Text Block] | Sectors (% of Total Investments)
Fixed Income Funds
60.0%
Equity Funds
40.0% | |
| Updated Prospectus Web Address | https://www.massmutual.com/product-performance/variable-insurance-funds | |
| Initial Class | | |
| Shareholder Report [Line Items] | | |
| Fund Name | MML Balanced Allocation Fund | |
| Class Name | Initial Class | |
| No Trading Symbol Flag | true | |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about the MML Balanced Allocation Fund (the “Fund”) for the period of January 1, 2024 to June 30, 2024. | |
| Shareholder Report Annual or Semi-Annual | semi-annual shareholder report | |
| Additional Information [Text Block] | You can find additional information about the Fund at https://www.massmutual.com/product-performance/variable-insurance-funds . You can also request this information by contacting us at 1-888-309-3539 or by sending an email request to fundinfo massmutual.com . | |
| Additional Information Phone Number | 1-888-309-3539 | |
| Additional Information Email | fundinfo@massmutual.com | |
| Additional Information Website | https://www.massmutual.com/product-performance/variable-insurance-funds | |
| Expenses [Text Block] | WHAT WERE THE FUND COSTS FOR THE LAST SIX MONTHS? This example shows the expenses you would have paid over the past six months, based on a hypothetical $10,000 investment. This table reflects any applicable waivers or expense limitations.
Class Name
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
Initial Class
$7
0.13% | |
| Expenses Paid, Amount | $ 7 | |
| Expense Ratio, Percent | 0.13% | |
| Net Assets | $ 310,000,000 | |
| Holdings Count | $ / shares | 24 | |
| Investment Company Portfolio Turnover | 3% | |
| Additional Fund Statistics [Text Block] | WHAT ARE SOME KEY FUND STATISTICS? (as of June 30, 2024)
Total Net Assets (Millions)
$310.0
Total Number of Portfolio Holdings (includes derivative positions, if any)
24
Portfolio Turnover Rate
3% | |
| Holdings [Text Block] | Sectors (% of Total Investments)
Equity Funds
50.1%
Fixed Income Funds
49.9% | |
| Updated Prospectus Web Address | https://www.massmutual.com/product-performance/variable-insurance-funds | |
| Service Class | | |
| Shareholder Report [Line Items] | | |
| Fund Name | MML Balanced Allocation Fund | |
| Class Name | Service Class | |
| No Trading Symbol Flag | true | |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about the MML Balanced Allocation Fund (the “Fund”) for the period of January 1, 2024 to June 30, 2024. | |
| Shareholder Report Annual or Semi-Annual | semi-annual shareholder report | |
| Additional Information [Text Block] | You can find additional information about the Fund at https://www.massmutual.com/product-performance/variable-insurance-funds . You can also request this information by contacting us at 1-888-309-3539 or by sending an email request to fundinfo massmutual.com . | |
| Additional Information Phone Number | 1-888-309-3539 | |
| Additional Information Email | fundinfo@massmutual.com | |
| Additional Information Website | https://www.massmutual.com/product-performance/variable-insurance-funds | |
| Expenses [Text Block] | WHAT WERE THE FUND COSTS FOR THE LAST SIX MONTHS? This example shows the expenses you would have paid over the past six months, based on a hypothetical $10,000 investment. This table reflects any applicable waivers or expense limitations.
Class Name
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
Service Class
$19
0.38% | |
| Expenses Paid, Amount | $ 19 | |
| Expense Ratio, Percent | 0.38% | |
| Net Assets | $ 310,000,000 | |
| Holdings Count | $ / shares | 24 | |
| Investment Company Portfolio Turnover | 3% | |
| Additional Fund Statistics [Text Block] | WHAT ARE SOME KEY FUND STATISTICS? (as of June 30, 2024)
Total Net Assets (Millions)
$310.0
Total Number of Portfolio Holdings (includes derivative positions, if any)
24
Portfolio Turnover Rate
3% | |
| Holdings [Text Block] | Sectors (% of Total Investments)
Equity Funds
50.1%
Fixed Income Funds
49.9% | |
| Updated Prospectus Web Address | https://www.massmutual.com/product-performance/variable-insurance-funds | |
| Initial Class | | |
| Shareholder Report [Line Items] | | |
| Fund Name | MML Moderate Allocation Fund | |
| Class Name | Initial Class | |
| No Trading Symbol Flag | true | |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about the MML Moderate Allocation Fund (the “Fund”) for the period of January 1, 2024 to June 30, 2024. | |
| Shareholder Report Annual or Semi-Annual | semi-annual shareholder report | |
| Additional Information [Text Block] | You can find additional information about the Fund at https://www.massmutual.com/product-performance/variable-insurance-funds . You can also request this information by contacting us at 1-888-309-3539 or by sending an email request to fundinfo massmutual.com . | |
| Additional Information Phone Number | 1-888-309-3539 | |
| Additional Information Email | fundinfo@massmutual.com | |
| Additional Information Website | https://www.massmutual.com/product-performance/variable-insurance-funds | |
| Expenses [Text Block] | WHAT WERE THE FUND COSTS FOR THE LAST SIX MONTHS? This example shows the expenses you would have paid over the past six months, based on a hypothetical $10,000 investment. This table reflects any applicable waivers or expense limitations.
Class Name
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
Initial Class
$6
0.12% | |
| Expenses Paid, Amount | $ 6 | |
| Expense Ratio, Percent | 0.12% | |
| Net Assets | $ 1,088,400,000 | |
| Holdings Count | $ / shares | 24 | |
| Investment Company Portfolio Turnover | 2% | |
| Additional Fund Statistics [Text Block] | WHAT ARE SOME KEY FUND STATISTICS? (as of June 30, 2024)
Total Net Assets (Millions)
$1,088.4
Total Number of Portfolio Holdings (includes derivative positions, if any)
24
Portfolio Turnover Rate
2% | |
| Holdings [Text Block] | Sectors (% of Total Investments)
Equity Funds
60.1%
Fixed Income Funds
39.9% | |
| Updated Prospectus Web Address | https://www.massmutual.com/product-performance/variable-insurance-funds | |
| Service Class | | |
| Shareholder Report [Line Items] | | |
| Fund Name | MML Moderate Allocation Fund | |
| Class Name | Service Class | |
| No Trading Symbol Flag | true | |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about the MML Moderate Allocation Fund (the “Fund”) for the period of January 1, 2024 to June 30, 2024. | |
| Shareholder Report Annual or Semi-Annual | semi-annual shareholder report | |
| Additional Information [Text Block] | You can find additional information about the Fund at https://www.massmutual.com/product-performance/variable-insurance-funds . You can also request this information by contacting us at 1-888-309-3539 or by sending an email request to fundinfo massmutual.com . | |
| Additional Information Phone Number | 1-888-309-3539 | |
| Additional Information Email | fundinfo@massmutual.com | |
| Additional Information Website | https://www.massmutual.com/product-performance/variable-insurance-funds | |
| Expenses [Text Block] | WHAT WERE THE FUND COSTS FOR THE LAST SIX MONTHS? This example shows the expenses you would have paid over the past six months, based on a hypothetical $10,000 investment. This table reflects any applicable waivers or expense limitations.
Class Name
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
Service Class
$19
0.37% | |
| Expenses Paid, Amount | $ 19 | |
| Expense Ratio, Percent | 0.37% | |
| Net Assets | $ 1,088,400,000 | |
| Holdings Count | $ / shares | 24 | |
| Investment Company Portfolio Turnover | 2% | |
| Additional Fund Statistics [Text Block] | WHAT ARE SOME KEY FUND STATISTICS? (as of June 30, 2024)
Total Net Assets (Millions)
$1,088.4
Total Number of Portfolio Holdings (includes derivative positions, if any)
24
Portfolio Turnover Rate
2% | |
| Holdings [Text Block] | Sectors (% of Total Investments)
Equity Funds
60.1%
Fixed Income Funds
39.9% | |
| Updated Prospectus Web Address | https://www.massmutual.com/product-performance/variable-insurance-funds | |
| Initial Class | | |
| Shareholder Report [Line Items] | | |
| Fund Name | MML Growth Allocation Fund | |
| Class Name | Initial Class | |
| No Trading Symbol Flag | true | |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about the MML Growth Allocation Fund (the “Fund”) for the period of January 1, 2024 to June 30, 2024. | |
| Shareholder Report Annual or Semi-Annual | semi-annual shareholder report | |
| Additional Information [Text Block] | You can find additional information about the Fund at https://www.massmutual.com/product-performance/variable-insurance-funds . You can also request this information by contacting us at 1-888-309-3539 or by sending an email request to fundinfo massmutual.com . | |
| Additional Information Phone Number | 1-888-309-3539 | |
| Additional Information Email | fundinfo@massmutual.com | |
| Additional Information Website | https://www.massmutual.com/product-performance/variable-insurance-funds | |
| Expenses [Text Block] | WHAT WERE THE FUND COSTS FOR THE LAST SIX MONTHS? This example shows the expenses you would have paid over the past six months, based on a hypothetical $10,000 investment. This table reflects any applicable waivers or expense limitations.
Class Name
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
Initial Class
$6
0.12% | |
| Expenses Paid, Amount | $ 6 | |
| Expense Ratio, Percent | 0.12% | |
| Net Assets | $ 941,300,000 | |
| Holdings Count | $ / shares | 24 | |
| Investment Company Portfolio Turnover | 4% | |
| Additional Fund Statistics [Text Block] | WHAT ARE SOME KEY FUND STATISTICS? (as of June 30, 2024)
Total Net Assets (Millions)
$941.3
Total Number of Portfolio Holdings (includes derivative positions, if any)
24
Portfolio Turnover Rate
4% | |
| Holdings [Text Block] | Sectors (% of Total Investments)
Equity Funds
75.1%
Fixed Income Funds
24.9% | |
| Updated Prospectus Web Address | https://www.massmutual.com/product-performance/variable-insurance-funds | |
| Service Class | | |
| Shareholder Report [Line Items] | | |
| Fund Name | MML Growth Allocation Fund | |
| Class Name | Service Class | |
| No Trading Symbol Flag | true | |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about the MML Growth Allocation Fund (the “Fund”) for the period of January 1, 2024 to June 30, 2024. | |
| Shareholder Report Annual or Semi-Annual | semi-annual shareholder report | |
| Additional Information [Text Block] | You can find additional information about the Fund at https://www.massmutual.com/product-performance/variable-insurance-funds . You can also request this information by contacting us at 1-888-309-3539 or by sending an email request to fundinfo massmutual.com . | |
| Additional Information Phone Number | 1-888-309-3539 | |
| Additional Information Email | fundinfo@massmutual.com | |
| Additional Information Website | https://www.massmutual.com/product-performance/variable-insurance-funds | |
| Expenses [Text Block] | WHAT WERE THE FUND COSTS FOR THE LAST SIX MONTHS? This example shows the expenses you would have paid over the past six months, based on a hypothetical $10,000 investment. This table reflects any applicable waivers or expense limitations.
Class Name
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
Service Class
$19
0.37% | |
| Expenses Paid, Amount | $ 19 | |
| Expense Ratio, Percent | 0.37% | |
| Net Assets | $ 941,300,000 | |
| Holdings Count | $ / shares | 24 | |
| Investment Company Portfolio Turnover | 4% | |
| Additional Fund Statistics [Text Block] | WHAT ARE SOME KEY FUND STATISTICS? (as of June 30, 2024)
Total Net Assets (Millions)
$941.3
Total Number of Portfolio Holdings (includes derivative positions, if any)
24
Portfolio Turnover Rate
4% | |
| Holdings [Text Block] | Sectors (% of Total Investments)
Equity Funds
75.1%
Fixed Income Funds
24.9% | |
| Updated Prospectus Web Address | https://www.massmutual.com/product-performance/variable-insurance-funds | |
| Initial Class | | |
| Shareholder Report [Line Items] | | |
| Fund Name | MML Aggressive Allocation Fund | |
| Class Name | Initial Class | |
| No Trading Symbol Flag | true | |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about the MML Aggressive Allocation Fund (the “Fund”) for the period of January 1, 2024 to June 30, 2024. | |
| Shareholder Report Annual or Semi-Annual | semi-annual shareholder report | |
| Additional Information [Text Block] | You can find additional information about the Fund at https://www.massmutual.com/product-performance/variable-insurance-funds . You can also request this information by contacting us at 1-888-309-3539 or by sending an email request to fundinfo massmutual.com . | |
| Additional Information Phone Number | 1-888-309-3539 | |
| Additional Information Email | fundinfo@massmutual.com | |
| Additional Information Website | https://www.massmutual.com/product-performance/variable-insurance-funds | |
| Expenses [Text Block] | WHAT WERE THE FUND COSTS FOR THE LAST SIX MONTHS? This example shows the expenses you would have paid over the past six months, based on a hypothetical $10,000 investment. This table reflects any applicable waivers or expense limitations.
Class Name
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
Initial Class
$8
0.16% | |
| Expenses Paid, Amount | $ 8 | |
| Expense Ratio, Percent | 0.16% | |
| Net Assets | $ 128,200,000 | |
| Holdings Count | $ / shares | 24 | |
| Investment Company Portfolio Turnover | 6% | |
| Additional Fund Statistics [Text Block] | WHAT ARE SOME KEY FUND STATISTICS? (as of June 30, 2024)
Total Net Assets (Millions)
$128.2
Total Number of Portfolio Holdings (includes derivative positions, if any)
24
Portfolio Turnover Rate
6% | |
| Holdings [Text Block] | Sectors (% of Total Investments)
Equity Funds
90.1%
Fixed Income Funds
9.9% | |
| Updated Prospectus Web Address | https://www.massmutual.com/product-performance/variable-insurance-funds | |
| Service Class | | |
| Shareholder Report [Line Items] | | |
| Fund Name | MML Aggressive Allocation Fund | |
| Class Name | Service Class | |
| No Trading Symbol Flag | true | |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about the MML Aggressive Allocation Fund (the “Fund”) for the period of January 1, 2024 to June 30, 2024. | |
| Shareholder Report Annual or Semi-Annual | semi-annual shareholder report | |
| Additional Information [Text Block] | You can find additional information about the Fund at https://www.massmutual.com/product-performance/variable-insurance-funds . You can also request this information by contacting us at 1-888-309-3539 or by sending an email request to fundinfo massmutual.com . | |
| Additional Information Phone Number | 1-888-309-3539 | |
| Additional Information Email | fundinfo@massmutual.com | |
| Additional Information Website | https://www.massmutual.com/product-performance/variable-insurance-funds | |
| Expenses [Text Block] | WHAT WERE THE FUND COSTS FOR THE LAST SIX MONTHS? This example shows the expenses you would have paid over the past six months, based on a hypothetical $10,000 investment. This table reflects any applicable waivers or expense limitations.
Class Name
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
Service Class
$21
0.41% | |
| Expenses Paid, Amount | $ 21 | |
| Expense Ratio, Percent | 0.41% | |
| Net Assets | $ 128,200,000 | |
| Holdings Count | $ / shares | 24 | |
| Investment Company Portfolio Turnover | 6% | |
| Additional Fund Statistics [Text Block] | WHAT ARE SOME KEY FUND STATISTICS? (as of June 30, 2024)
Total Net Assets (Millions)
$128.2
Total Number of Portfolio Holdings (includes derivative positions, if any)
24
Portfolio Turnover Rate
6% | |
| Holdings [Text Block] | Sectors (% of Total Investments)
Equity Funds
90.1%
Fixed Income Funds
9.9% | |
| Updated Prospectus Web Address | https://www.massmutual.com/product-performance/variable-insurance-funds | |
| Service Class I | | |
| Shareholder Report [Line Items] | | |
| Fund Name | MML American Funds Growth Fund | |
| Class Name | Service Class I | |
| No Trading Symbol Flag | true | |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about the MML American Funds Growth Fund (the “Fund”) for the period of January 1, 2024 to June 30, 2024. | |
| Shareholder Report Annual or Semi-Annual | semi-annual shareholder report | |
| Additional Information [Text Block] | You can find additional information about the Fund at https://www.massmutual.com/product-performance/variable-insurance-funds . You can also request this information by contacting us at 1-888-309-3539 or by sending an email request to fundinfo massmutual.com . | |
| Additional Information Phone Number | 1-888-309-3539 | |
| Additional Information Email | fundinfo@massmutual.com | |
| Additional Information Website | https://www.massmutual.com/product-performance/variable-insurance-funds | |
| Expenses [Text Block] | WHAT WERE THE FUND COSTS FOR THE LAST SIX MONTHS? This example shows the expenses you would have paid over the past six months, based on a hypothetical $10,000 investment. This table reflects any applicable waivers or expense limitations.
Class Name
Costs of a $10,000 investment 1
Costs paid as a percentage of a $10,000 investment 1
Service Class I
$55
1.02% | [1] |
| Expenses Paid, Amount | $ 55 | |
| Expense Ratio, Percent | 1.02% | [1] |
| Net Assets | $ 267,200,000 | |
| Holdings Count | $ / shares | 1 | |
| Investment Company Portfolio Turnover | 4% | |
| Additional Fund Statistics [Text Block] | WHAT ARE SOME KEY FUND STATISTICS? (as of June 30, 2024)
Total Net Assets (Millions)
$267.2
Total Number of Portfolio Holdings (includes derivative positions, if any)
1
Portfolio Turnover Rate
4% | |
| Holdings [Text Block] | Sectors (% of Total Investments)
Equity Funds
100.0% | |
| Updated Prospectus Web Address | https://www.massmutual.com/product-performance/variable-insurance-funds | |
| Service Class I | | |
| Shareholder Report [Line Items] | | |
| Fund Name | MML American Funds Core Allocation Fund | |
| Class Name | Service Class I | |
| No Trading Symbol Flag | true | |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about the MML American Funds Core Allocation Fund (the “Fund”) for the period of January 1, 2024 to June 30, 2024. | |
| Shareholder Report Annual or Semi-Annual | semi-annual shareholder report | |
| Additional Information [Text Block] | You can find additional information about the Fund at https:// www.massmutual.com/product-performance/variable-insurance-funds . You can also request this information by contacting us at 1-888-309-3539 or by sending an email request to fundinfo massmutual.com . | |
| Additional Information Phone Number | 1-888-309-3539 | |
| Additional Information Email | fundinfo@massmutual.com | |
| Additional Information Website | https://www.massmutual.com/product-performance/variable-insurance-funds | |
| Expenses [Text Block] | WHAT WERE THE FUND COSTS FOR THE LAST SIX MONTHS? This example shows the expenses you would have paid over the past six months, based on a hypothetical $10,000 investment. This table reflects any applicable waivers or expense limitations.
Class Name
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
Service Class I
$37
0.72% | |
| Expenses Paid, Amount | $ 37 | |
| Expense Ratio, Percent | 0.72% | |
| Net Assets | $ 625,900,000 | |
| Holdings Count | $ / shares | 4 | |
| Investment Company Portfolio Turnover | 5% | |
| Additional Fund Statistics [Text Block] | WHAT ARE SOME KEY FUND STATISTICS? (as of June 30, 2024)
Total Net Assets (Millions)
$625.9
Total Number of Portfolio Holdings (includes derivative positions, if any)
4
Portfolio Turnover Rate
5% | |
| Holdings [Text Block] | Sectors (% of Total Investments)
Equity Funds
65.5%
Fixed Income Funds
34.5% | |
| Updated Prospectus Web Address | https://www.massmutual.com/product-performance/variable-insurance-funds | |
| Initial Class | | |
| Shareholder Report [Line Items] | | |
| Fund Name | MML Blue Chip Growth Fund | |
| Class Name | Initial Class | |
| No Trading Symbol Flag | true | |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about the MML Blue Chip Growth Fund (the “Fund”) for the period of January 1, 2024 to June 30, 2024. | |
| Shareholder Report Annual or Semi-Annual | semi-annual shareholder report | |
| Additional Information [Text Block] | You can find additional information about the Fund at https://www.massmutual.com/product-performance/variable-insurance-funds . You can also request this information by contacting us at 1-888-309-3539 or by sending an email request to fundinfo massmutual.com . | |
| Additional Information Phone Number | 1-888-309-3539 | |
| Additional Information Email | fundinfo@massmutual.com | |
| Additional Information Website | https://www.massmutual.com/product-performance/variable-insurance-funds | |
| Expenses [Text Block] | WHAT WERE THE FUND COSTS FOR THE LAST SIX MONTHS? This example shows the expenses you would have paid over the past six months, based on a hypothetical $10,000 investment. This table reflects any applicable waivers or expense limitations.
Class Name
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
Initial Class
$43
0.77% | |
| Expenses Paid, Amount | $ 43 | |
| Expense Ratio, Percent | 0.77% | |
| Net Assets | $ 499,900,000 | |
| Holdings Count | $ / shares | 88 | |
| Investment Company Portfolio Turnover | 5% | |
| Additional Fund Statistics [Text Block] | WHAT ARE SOME KEY FUND STATISTICS? (as of June 30, 2024)
Total Net Assets (Millions)
$499.9
Total Number of Portfolio Holdings (includes derivative positions, if any)
88
Portfolio Turnover Rate
5% | |
| Holdings [Text Block] | Largest Holdings (% of Total Investments)
Microsoft Corp.
12.9%
NVIDIA Corp.
12.2%
Amazon.com, Inc.
8.2%
Apple, Inc.
8.1%
Alphabet, Inc. Class C
6.7%
Meta Platforms, Inc. Class A
4.8%
Eli Lilly & Co.
3.7%
Visa, Inc. Class A
2.6%
Mastercard, Inc. Class A
2.2%
ServiceNow, Inc.
2.0%
Sectors (% of Total Investments)
Information Technology
44.1%
Communication Services
15.7%
Consumer Discretionary
13.9%
Health Care
10.6%
Financials
8.1%
Industrials
1.6%
Consumer Staples
1.3%
Materials
0.8%
Utilities
0.7%
Energy
0.3%
Retail
0.2% | |
| Updated Prospectus Web Address | https://www.massmutual.com/product-performance/variable-insurance-funds | |
| Service Class | | |
| Shareholder Report [Line Items] | | |
| Fund Name | MML Blue Chip Growth Fund | |
| Class Name | Service Class | |
| No Trading Symbol Flag | true | |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about the MML Blue Chip Growth Fund (the “Fund”) for the period of January 1, 2024 to June 30, 2024. | |
| Shareholder Report Annual or Semi-Annual | semi-annual shareholder report | |
| Additional Information [Text Block] | You can find additional information about the Fund at https://www.massmutual.com/product-performance/variable-insurance-funds . You can also request this information by contacting us at 1-888-309-3539 or by sending an email request to fundinfo massmutual.com . | |
| Additional Information Phone Number | 1-888-309-3539 | |
| Additional Information Email | fundinfo@massmutual.com | |
| Additional Information Website | https://www.massmutual.com/product-performance/variable-insurance-funds | |
| Expenses [Text Block] | WHAT WERE THE FUND COSTS FOR THE LAST SIX MONTHS? This example shows the expenses you would have paid over the past six months, based on a hypothetical $10,000 investment. This table reflects any applicable waivers or expense limitations.
Class Name
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
Service Class
$57
1.02% | |
| Expenses Paid, Amount | $ 57 | |
| Expense Ratio, Percent | 1.02% | |
| Net Assets | $ 499,900,000 | |
| Holdings Count | $ / shares | 88 | |
| Investment Company Portfolio Turnover | 5% | |
| Additional Fund Statistics [Text Block] | WHAT ARE SOME KEY FUND STATISTICS? (as of June 30, 2024)
Total Net Assets (Millions)
$499.9
Total Number of Portfolio Holdings (includes derivative positions, if any)
88
Portfolio Turnover Rate
5% | |
| Holdings [Text Block] | Largest Holdings (% of Total Investments)
Microsoft Corp.
12.9%
NVIDIA Corp.
12.2%
Amazon.com, Inc.
8.2%
Apple, Inc.
8.1%
Alphabet, Inc. Class C
6.7%
Meta Platforms, Inc. Class A
4.8%
Eli Lilly & Co.
3.7%
Visa, Inc. Class A
2.6%
Mastercard, Inc. Class A
2.2%
ServiceNow, Inc.
2.0%
Sectors (% of Total Investments)
Information Technology
44.1%
Communication Services
15.7%
Consumer Discretionary
13.9%
Health Care
10.6%
Financials
8.1%
Industrials
1.6%
Consumer Staples
1.3%
Materials
0.8%
Utilities
0.7%
Energy
0.3%
Retail
0.2% | |
| Updated Prospectus Web Address | https://www.massmutual.com/product-performance/variable-insurance-funds | |
| Initial Class | | |
| Shareholder Report [Line Items] | | |
| Fund Name | MML Equity Income Fund | |
| Class Name | Initial Class | |
| No Trading Symbol Flag | true | |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about the MML Equity Income Fund (the “Fund”) for the period of January 1, 2024 to June 30, 2024. | |
| Shareholder Report Annual or Semi-Annual | semi-annual shareholder report | |
| Additional Information [Text Block] | You can find additional information about the Fund at https://www.massmutual.com/product-performance/variable-insurance-funds . You can also request this information by contacting us at 1-888-309-3539 or by sending an email request to fundinfo massmutual.com . | |
| Additional Information Phone Number | 1-888-309-3539 | |
| Additional Information Email | fundinfo@massmutual.com | |
| Additional Information Website | https://www.massmutual.com/product-performance/variable-insurance-funds | |
| Expenses [Text Block] | WHAT WERE THE FUND COSTS FOR THE LAST SIX MONTHS? This example shows the expenses you would have paid over the past six months, based on a hypothetical $10,000 investment. This table reflects any applicable waivers or expense limitations.
Class Name
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
Initial Class
$40
0.77% | |
| Expenses Paid, Amount | $ 40 | |
| Expense Ratio, Percent | 0.77% | |
| Net Assets | $ 340,200,000 | |
| Holdings Count | $ / shares | 118 | |
| Investment Company Portfolio Turnover | 10% | |
| Additional Fund Statistics [Text Block] | WHAT ARE SOME KEY FUND STATISTICS? (as of June 30, 2024)
Total Net Assets (Millions)
$340.2
Total Number of Portfolio Holdings (includes derivative positions, if any)
118
Portfolio Turnover Rate
10% | |
| Holdings [Text Block] | Largest Holdings (% of Total Investments)
Elevance Health, Inc.
2.7%
QUALCOMM, Inc.
2.4%
Wells Fargo & Co.
2.3%
Southern Co.
2.2%
News Corp. Class A
2.2%
American International Group, Inc.
2.0%
Chubb Ltd.
2.0%
TotalEnergies SE
2.0%
MetLife, Inc.
1.9%
General Electric Co.
1.8%
Sectors (% of Total Investments)
Financials
21.6%
Health Care
16.5%
Industrials
12.5%
Information Technology
10.1%
Energy
9.0%
Consumer Staples
8.6%
Utilities
6.1%
Communication Services
4.5%
Real Estate
4.1%
Consumer Discretionary
3.1%
Materials
2.9% | |
| Updated Prospectus Web Address | https://www.massmutual.com/product-performance/variable-insurance-funds | |
| Service Class | | |
| Shareholder Report [Line Items] | | |
| Fund Name | MML Equity Income Fund | |
| Class Name | Service Class | |
| No Trading Symbol Flag | true | |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about the MML Equity Income Fund (the “Fund”) for the period of January 1, 2024 to June 30, 2024. | |
| Shareholder Report Annual or Semi-Annual | semi-annual shareholder report | |
| Additional Information [Text Block] | You can find additional information about the Fund at https://www.massmutual.com/product-performance/variable-insurance-funds . You can also request this information by contacting us at 1-888-309-3539 or by sending an email request to fundinfo massmutual.com . | |
| Additional Information Phone Number | 1-888-309-3539 | |
| Additional Information Email | fundinfo@massmutual.com | |
| Additional Information Website | https://www.massmutual.com/product-performance/variable-insurance-funds | |
| Expenses [Text Block] | WHAT WERE THE FUND COSTS FOR THE LAST SIX MONTHS? This example shows the expenses you would have paid over the past six months, based on a hypothetical $10,000 investment. This table reflects any applicable waivers or expense limitations.
Class Name
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
Service Class
$53
1.02% | |
| Expenses Paid, Amount | $ 53 | |
| Expense Ratio, Percent | 1.02% | |
| Net Assets | $ 340,200,000 | |
| Holdings Count | $ / shares | 118 | |
| Investment Company Portfolio Turnover | 10% | |
| Additional Fund Statistics [Text Block] | WHAT ARE SOME KEY FUND STATISTICS? (as of June 30, 2024)
Total Net Assets (Millions)
$340.2
Total Number of Portfolio Holdings (includes derivative positions, if any)
118
Portfolio Turnover Rate
10% | |
| Holdings [Text Block] | Largest Holdings (% of Total Investments)
Elevance Health, Inc.
2.7%
QUALCOMM, Inc.
2.4%
Wells Fargo & Co.
2.3%
Southern Co.
2.2%
News Corp. Class A
2.2%
American International Group, Inc.
2.0%
Chubb Ltd.
2.0%
TotalEnergies SE
2.0%
MetLife, Inc.
1.9%
General Electric Co.
1.8%
Sectors (% of Total Investments)
Financials
21.6%
Health Care
16.5%
Industrials
12.5%
Information Technology
10.1%
Energy
9.0%
Consumer Staples
8.6%
Utilities
6.1%
Communication Services
4.5%
Real Estate
4.1%
Consumer Discretionary
3.1%
Materials
2.9% | |
| Updated Prospectus Web Address | https://www.massmutual.com/product-performance/variable-insurance-funds | |
| Class I | | |
| Shareholder Report [Line Items] | | |
| Fund Name | MML Equity Index Fund | |
| Class Name | Class I | |
| No Trading Symbol Flag | true | |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about the MML Equity Index Fund (the “Fund”) for the period of January 1, 2024 to June 30, 2024. | |
| Shareholder Report Annual or Semi-Annual | semi-annual shareholder report | |
| Additional Information [Text Block] | You can find additional information about the Fund at https://www.massmutual.com/product-performance/variable-insurance-funds . You can also request this information by contacting us at 1-888-309-3539 or by sending an email request to fundinfo massmutual.com . | |
| Additional Information Phone Number | 1-888-309-3539 | |
| Additional Information Email | fundinfo@massmutual.com | |
| Additional Information Website | https://www.massmutual.com/product-performance/variable-insurance-funds | |
| Expenses [Text Block] | WHAT WERE THE FUND COSTS FOR THE LAST SIX MONTHS? This example shows the expenses you would have paid over the past six months, based on a hypothetical $10,000 investment. This table reflects any applicable waivers or expense limitations.
Class Name
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
Class I
$22
0.42% | |
| Expenses Paid, Amount | $ 22 | |
| Expense Ratio, Percent | 0.42% | |
| Net Assets | $ 726,000,000 | |
| Holdings Count | $ / shares | 506 | |
| Investment Company Portfolio Turnover | 1% | |
| Additional Fund Statistics [Text Block] | WHAT ARE SOME KEY FUND STATISTICS? (as of June 30, 2024)
Total Net Assets (Millions)
$726.0
Total Number of Portfolio Holdings (includes derivative positions, if any)
506
Portfolio Turnover Rate
1% | |
| Holdings [Text Block] | Largest Holdings (% of Total Investments)
Microsoft Corp.
7.2%
NVIDIA Corp.
6.6%
Apple, Inc.
6.6%
Amazon.com, Inc.
3.8%
Meta Platforms, Inc.
2.4%
Alphabet, Inc. Class A
2.3%
Alphabet, Inc. Class C
1.9%
Berkshire Hathaway, Inc. Class B
1.6%
Eli Lilly & Co.
1.6%
Broadcom, Inc.
1.5%
Sectors (% of Total Investments)
Information Technology
32.2%
Financials
12.3%
Health Care
11.6%
Consumer Discretionary
9.9%
Communication Services
9.3%
Industrials
8.1%
Consumer Staples
5.7%
Energy
3.6%
Utilities
2.3%
Materials
2.2%
Real Estate
2.1% | |
| Updated Prospectus Web Address | https://www.massmutual.com/product-performance/variable-insurance-funds | |
| Class II | | |
| Shareholder Report [Line Items] | | |
| Fund Name | MML Equity Index Fund | |
| Class Name | Class II | |
| No Trading Symbol Flag | true | |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about the MML Equity Index Fund (the “Fund”) for the period of January 1, 2024 to June 30, 2024. | |
| Shareholder Report Annual or Semi-Annual | semi-annual shareholder report | |
| Additional Information [Text Block] | You can find additional information about the Fund at https://www.massmutual.com/product-performance/variable-insurance-funds . You can also request this information by contacting us at 1-888-309-3539 or by sending an email request to fundinfo massmutual.com . | |
| Additional Information Phone Number | 1-888-309-3539 | |
| Additional Information Email | fundinfo@massmutual.com | |
| Additional Information Website | https://www.massmutual.com/product-performance/variable-insurance-funds | |
| Expenses [Text Block] | WHAT WERE THE FUND COSTS FOR THE LAST SIX MONTHS? This example shows the expenses you would have paid over the past six months, based on a hypothetical $10,000 investment. This table reflects any applicable waivers or expense limitations.
Class Name
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
Class II
$14
0.27% | |
| Expenses Paid, Amount | $ 14 | |
| Expense Ratio, Percent | 0.27% | |
| Net Assets | $ 726,000,000 | |
| Holdings Count | $ / shares | 506 | |
| Investment Company Portfolio Turnover | 1% | |
| Additional Fund Statistics [Text Block] | WHAT ARE SOME KEY FUND STATISTICS? (as of June 30, 2024)
Total Net Assets (Millions)
$726.0
Total Number of Portfolio Holdings (includes derivative positions, if any)
506
Portfolio Turnover Rate
1% | |
| Holdings [Text Block] | Largest Holdings (% of Total Investments)
Microsoft Corp.
7.2%
NVIDIA Corp.
6.6%
Apple, Inc.
6.6%
Amazon.com, Inc.
3.8%
Meta Platforms, Inc.
2.4%
Alphabet, Inc. Class A
2.3%
Alphabet, Inc. Class C
1.9%
Berkshire Hathaway, Inc. Class B
1.6%
Eli Lilly & Co.
1.6%
Broadcom, Inc.
1.5%
Sectors (% of Total Investments)
Information Technology
32.2%
Financials
12.3%
Health Care
11.6%
Consumer Discretionary
9.9%
Communication Services
9.3%
Industrials
8.1%
Consumer Staples
5.7%
Energy
3.6%
Utilities
2.3%
Materials
2.2%
Real Estate
2.1% | |
| Updated Prospectus Web Address | https://www.massmutual.com/product-performance/variable-insurance-funds | |
| Class III | | |
| Shareholder Report [Line Items] | | |
| Fund Name | MML Equity Index Fund | |
| Class Name | Class III | |
| No Trading Symbol Flag | true | |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about the MML Equity Index Fund (the “Fund”) for the period of January 1, 2024 to June 30, 2024. | |
| Shareholder Report Annual or Semi-Annual | semi-annual shareholder report | |
| Additional Information [Text Block] | You can find additional information about the Fund at https://www.massmutual.com/product-performance/variable-insurance-funds . You can also request this information by contacting us at 1-888-309-3539 or by sending an email request to fundinfo massmutual.com . | |
| Additional Information Phone Number | 1-888-309-3539 | |
| Additional Information Email | fundinfo@massmutual.com | |
| Additional Information Website | https://www.massmutual.com/product-performance/variable-insurance-funds | |
| Expenses [Text Block] | WHAT WERE THE FUND COSTS FOR THE LAST SIX MONTHS? This example shows the expenses you would have paid over the past six months, based on a hypothetical $10,000 investment. This table reflects any applicable waivers or expense limitations.
Class Name
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
Class III
$6
0.12% | |
| Expenses Paid, Amount | $ 6 | |
| Expense Ratio, Percent | 0.12% | |
| Net Assets | $ 726,000,000 | |
| Holdings Count | $ / shares | 506 | |
| Investment Company Portfolio Turnover | 1% | |
| Additional Fund Statistics [Text Block] | WHAT ARE SOME KEY FUND STATISTICS? (as of June 30, 2024)
Total Net Assets (Millions)
$726.0
Total Number of Portfolio Holdings (includes derivative positions, if any)
506
Portfolio Turnover Rate
1% | |
| Holdings [Text Block] | Largest Holdings (% of Total Investments)
Microsoft Corp.
7.2%
NVIDIA Corp.
6.6%
Apple, Inc.
6.6%
Amazon.com, Inc.
3.8%
Meta Platforms, Inc.
2.4%
Alphabet, Inc. Class A
2.3%
Alphabet, Inc. Class C
1.9%
Berkshire Hathaway, Inc. Class B
1.6%
Eli Lilly & Co.
1.6%
Broadcom, Inc.
1.5%
Sectors (% of Total Investments)
Information Technology
32.2%
Financials
12.3%
Health Care
11.6%
Consumer Discretionary
9.9%
Communication Services
9.3%
Industrials
8.1%
Consumer Staples
5.7%
Energy
3.6%
Utilities
2.3%
Materials
2.2%
Real Estate
2.1% | |
| Updated Prospectus Web Address | https://www.massmutual.com/product-performance/variable-insurance-funds | |
| Service Class I | | |
| Shareholder Report [Line Items] | | |
| Fund Name | MML Equity Index Fund | |
| Class Name | Service Class I | |
| No Trading Symbol Flag | true | |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about the MML Equity Index Fund (the “Fund”) for the period of January 1, 2024 to June 30, 2024. | |
| Shareholder Report Annual or Semi-Annual | semi-annual shareholder report | |
| Additional Information [Text Block] | You can find additional information about the Fund at https://www.massmutual.com/product-performance/variable-insurance-funds . You can also request this information by contacting us at 1-888-309-3539 or by sending an email request to fundinfo massmutual.com . | |
| Additional Information Phone Number | 1-888-309-3539 | |
| Additional Information Email | fundinfo@massmutual.com | |
| Additional Information Website | https://www.massmutual.com/product-performance/variable-insurance-funds | |
| Expenses [Text Block] | WHAT WERE THE FUND COSTS FOR THE LAST SIX MONTHS? This example shows the expenses you would have paid over the past six months, based on a hypothetical $10,000 investment. This table reflects any applicable waivers or expense limitations.
Class Name
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
Service Class I
$36
0.67% | |
| Expenses Paid, Amount | $ 36 | |
| Expense Ratio, Percent | 0.67% | |
| Net Assets | $ 726,000,000 | |
| Holdings Count | $ / shares | 506 | |
| Investment Company Portfolio Turnover | 1% | |
| Additional Fund Statistics [Text Block] | WHAT ARE SOME KEY FUND STATISTICS? (as of June 30, 2024)
Total Net Assets (Millions)
$726.0
Total Number of Portfolio Holdings (includes derivative positions, if any)
506
Portfolio Turnover Rate
1% | |
| Holdings [Text Block] | Largest Holdings (% of Total Investments)
Microsoft Corp.
7.2%
NVIDIA Corp.
6.6%
Apple, Inc.
6.6%
Amazon.com, Inc.
3.8%
Meta Platforms, Inc.
2.4%
Alphabet, Inc. Class A
2.3%
Alphabet, Inc. Class C
1.9%
Berkshire Hathaway, Inc. Class B
1.6%
Eli Lilly & Co.
1.6%
Broadcom, Inc.
1.5%
Sectors (% of Total Investments)
Information Technology
32.2%
Financials
12.3%
Health Care
11.6%
Consumer Discretionary
9.9%
Communication Services
9.3%
Industrials
8.1%
Consumer Staples
5.7%
Energy
3.6%
Utilities
2.3%
Materials
2.2%
Real Estate
2.1% | |
| Updated Prospectus Web Address | https://www.massmutual.com/product-performance/variable-insurance-funds | |
| Class II | | |
| Shareholder Report [Line Items] | | |
| Fund Name | MML Focused Equity Fund | |
| Class Name | Class II | |
| No Trading Symbol Flag | true | |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about the MML Focused Equity Fund (the “Fund”) for the period of January 1, 2024 to June 30, 2024. | |
| Shareholder Report Annual or Semi-Annual | semi-annual shareholder report | |
| Additional Information [Text Block] | You can find additional information about the Fund at https://www.massmutual.com/product-performance/variable-insurance-funds . You can also request this information by contacting us at 1-888-309-3539 or by sending an email request to fundinfo massmutual.com . | |
| Additional Information Phone Number | 1-888-309-3539 | |
| Additional Information Email | fundinfo@massmutual.com | |
| Additional Information Website | https://www.massmutual.com/product-performance/variable-insurance-funds | |
| Expenses [Text Block] | WHAT WERE THE FUND COSTS FOR THE LAST SIX MONTHS? This example shows the expenses you would have paid over the past six months, based on a hypothetical $10,000 investment. This table reflects any applicable waivers or expense limitations.
Class Name
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
Class II
$44
0.87% | |
| Expenses Paid, Amount | $ 44 | |
| Expense Ratio, Percent | 0.87% | |
| Net Assets | $ 277,200,000 | |
| Holdings Count | $ / shares | 27 | |
| Investment Company Portfolio Turnover | 24% | |
| Additional Fund Statistics [Text Block] | WHAT ARE SOME KEY FUND STATISTICS? (as of June 30, 2024)
Total Net Assets (Millions)
$277.2
Total Number of Portfolio Holdings (includes derivative positions, if any)
27
Portfolio Turnover Rate
24% | |
| Holdings [Text Block] | Largest Holdings (% of Total Investments)
TJX Cos., Inc.
5.5%
UnitedHealth Group, Inc.
5.3%
Microsoft Corp.
5.1%
Texas Instruments, Inc.
4.9%
Linde PLC (LIN US)
4.8%
Danaher Corp.
4.7%
Accenture PLC Class A
4.7%
American Express Co.
4.6%
Visa, Inc. Class A
4.5%
McDonald’s Corp.
4.4%
Sectors (% of Total Investments)
Financials
21.5%
Information Technology
19.2%
Health Care
14.0%
Consumer Discretionary
13.1%
Industrials
11.1%
Consumer Staples
10.2%
Materials
4.8%
Real Estate
2.1% | |
| Updated Prospectus Web Address | https://www.massmutual.com/product-performance/variable-insurance-funds | |
| Service Class I | | |
| Shareholder Report [Line Items] | | |
| Fund Name | MML Focused Equity Fund | |
| Class Name | Service Class I | |
| No Trading Symbol Flag | true | |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about the MML Focused Equity Fund (the “Fund”) for the period of January 1, 2024 to June 30, 2024. | |
| Shareholder Report Annual or Semi-Annual | semi-annual shareholder report | |
| Additional Information [Text Block] | You can find additional information about the Fund at https://www.massmutual.com/product-performance/variable-insurance-funds . You can also request this information by contacting us at 1-888-309-3539 or by sending an email request to fundinfo massmutual.com . | |
| Additional Information Phone Number | 1-888-309-3539 | |
| Additional Information Email | fundinfo@massmutual.com | |
| Additional Information Website | https://www.massmutual.com/product-performance/variable-insurance-funds | |
| Expenses [Text Block] | WHAT WERE THE FUND COSTS FOR THE LAST SIX MONTHS? This example shows the expenses you would have paid over the past six months, based on a hypothetical $10,000 investment. This table reflects any applicable waivers or expense limitations.
Class Name
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
Service Class I
$57
1.12% | |
| Expenses Paid, Amount | $ 57 | |
| Expense Ratio, Percent | 1.12% | |
| Net Assets | $ 277,200,000 | |
| Holdings Count | $ / shares | 27 | |
| Investment Company Portfolio Turnover | 24% | |
| Additional Fund Statistics [Text Block] | WHAT ARE SOME KEY FUND STATISTICS? (as of June 30, 2024)
Total Net Assets (Millions)
$277.2
Total Number of Portfolio Holdings (includes derivative positions, if any)
27
Portfolio Turnover Rate
24% | |
| Holdings [Text Block] | Largest Holdings (% of Total Investments)
TJX Cos., Inc.
5.5%
UnitedHealth Group, Inc.
5.3%
Microsoft Corp.
5.1%
Texas Instruments, Inc.
4.9%
Linde PLC (LIN US)
4.8%
Danaher Corp.
4.7%
Accenture PLC Class A
4.7%
American Express Co.
4.6%
Visa, Inc. Class A
4.5%
McDonald’s Corp.
4.4%
Sectors (% of Total Investments)
Financials
21.5%
Information Technology
19.2%
Health Care
14.0%
Consumer Discretionary
13.1%
Industrials
11.1%
Consumer Staples
10.2%
Materials
4.8%
Real Estate
2.1% | |
| Updated Prospectus Web Address | https://www.massmutual.com/product-performance/variable-insurance-funds | |
| Initial Class | | |
| Shareholder Report [Line Items] | | |
| Fund Name | MML Foreign Fund | |
| Class Name | Initial Class | |
| No Trading Symbol Flag | true | |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about the MML Foreign Fund (the “Fund”) for the period of January 1, 2024 to June 30, 2024. | |
| Shareholder Report Annual or Semi-Annual | semi-annual shareholder report | |
| Additional Information [Text Block] | You can find additional information about the Fund at https://www.massmutual.com/product-performance/variable-insurance-funds . You can also request this information by contacting us at 1-888-309-3539 or by sending an email request to fundinfo massmutual.com . | |
| Additional Information Phone Number | 1-888-309-3539 | |
| Additional Information Email | fundinfo@massmutual.com | |
| Additional Information Website | https://www.massmutual.com/product-performance/variable-insurance-funds | |
| Expenses [Text Block] | WHAT WERE THE FUND COSTS FOR THE LAST SIX MONTHS? This example shows the expenses you would have paid over the past six months, based on a hypothetical $10,000 investment. This table reflects any applicable waivers or expense limitations.
Class Name
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
Initial Class
$48
0.94% | |
| Expenses Paid, Amount | $ 48 | |
| Expense Ratio, Percent | 0.94% | |
| Net Assets | $ 172,700,000 | |
| Holdings Count | $ / shares | 109 | |
| Investment Company Portfolio Turnover | 6% | |
| Additional Fund Statistics [Text Block] | WHAT ARE SOME KEY FUND STATISTICS? (as of June 30, 2024)
Total Net Assets (Millions)
$172.7
Total Number of Portfolio Holdings (includes derivative positions, if any)
109
Portfolio Turnover Rate
6% | |
| Holdings [Text Block] | Largest Holdings (% of Total Investments)
SAP SE
2.1%
Roche Holding AG
2.1%
Sony Group Corp.
2.1%
Hitachi Ltd.
2.0%
Sumitomo Mitsui Financial Group, Inc.
1.9%
Samsung Electronics Co. Ltd.
1.9%
ORIX Corp.
1.7%
Lloyds Banking Group PLC
1.6%
Veolia Environnement SA
1.6%
BP PLC
1.6%
Sectors (% of Total Investments)
Financials
20.3%
Industrials
15.7%
Information Technology
13.0%
Consumer Staples
11.0%
Health Care
10.8%
Consumer Discretionary
10.2%
Energy
7.4%
Materials
7.1%
Communication Services
2.2%
Utilities
1.6%
Real Estate
0.6%
Largest Countries (% of Total Investments)
Japan
20.8%
United Kingdom
15.7%
Germany
11.4%
United States
11.4%
France
9.4%
Australia
4.7%
Netherlands
4.0%
Ireland
3.5%
Belgium
3.3%
Switzerland
3.0% | |
| Updated Prospectus Web Address | https://www.massmutual.com/product-performance/variable-insurance-funds | |
| Service Class | | |
| Shareholder Report [Line Items] | | |
| Fund Name | MML Foreign Fund | |
| Class Name | Service Class | |
| No Trading Symbol Flag | true | |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about the MML Foreign Fund (the “Fund”) for the period of January 1, 2024 to June 30, 2024. | |
| Shareholder Report Annual or Semi-Annual | semi-annual shareholder report | |
| Additional Information [Text Block] | You can find additional information about the Fund at https://www.massmutual.com/product-performance/variable-insurance-funds . You can also request this information by contacting us at 1-888-309-3539 or by sending an email request to fundinfo massmutual.com . | |
| Additional Information Phone Number | 1-888-309-3539 | |
| Additional Information Email | fundinfo@massmutual.com | |
| Additional Information Website | https://www.massmutual.com/product-performance/variable-insurance-funds | |
| Expenses [Text Block] | WHAT WERE THE FUND COSTS FOR THE LAST SIX MONTHS? This example shows the expenses you would have paid over the past six months, based on a hypothetical $10,000 investment. This table reflects any applicable waivers or expense limitations.
Class Name
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
Service Class
$60
1.19% | |
| Expenses Paid, Amount | $ 60 | |
| Expense Ratio, Percent | 1.19% | |
| Net Assets | $ 172,700,000 | |
| Holdings Count | $ / shares | 109 | |
| Investment Company Portfolio Turnover | 6% | |
| Additional Fund Statistics [Text Block] | WHAT ARE SOME KEY FUND STATISTICS? (as of June 30, 2024)
Total Net Assets (Millions)
$172.7
Total Number of Portfolio Holdings (includes derivative positions, if any)
109
Portfolio Turnover Rate
6% | |
| Holdings [Text Block] | Largest Holdings (% of Total Investments)
SAP SE
2.1%
Roche Holding AG
2.1%
Sony Group Corp.
2.1%
Hitachi Ltd.
2.0%
Sumitomo Mitsui Financial Group, Inc.
1.9%
Samsung Electronics Co. Ltd.
1.9%
ORIX Corp.
1.7%
Lloyds Banking Group PLC
1.6%
Veolia Environnement SA
1.6%
BP PLC
1.6%
Sectors (% of Total Investments)
Financials
20.3%
Industrials
15.7%
Information Technology
13.0%
Consumer Staples
11.0%
Health Care
10.8%
Consumer Discretionary
10.2%
Energy
7.4%
Materials
7.1%
Communication Services
2.2%
Utilities
1.6%
Real Estate
0.6%
Largest Countries (% of Total Investments)
Japan
20.8%
United Kingdom
15.7%
Germany
11.4%
United States
11.4%
France
9.4%
Australia
4.7%
Netherlands
4.0%
Ireland
3.5%
Belgium
3.3%
Switzerland
3.0% | |
| Updated Prospectus Web Address | https://www.massmutual.com/product-performance/variable-insurance-funds | |
| Class II | | |
| Shareholder Report [Line Items] | | |
| Fund Name | MML Fundamental Equity Fund | |
| Class Name | Class II | |
| No Trading Symbol Flag | true | |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about the MML Fundamental Equity Fund (the “Fund”) for the period of January 1, 2024 to June 30, 2024. | |
| Shareholder Report Annual or Semi-Annual | semi-annual shareholder report | |
| Additional Information [Text Block] | You can find additional information about the Fund at https://www.massmutual.com/product-performance/variable-insurance-funds . You can also request this information by contacting us at 1-888-309-3539 or by sending an email request to fundinfo massmutual.com . | |
| Additional Information Phone Number | 1-888-309-3539 | |
| Additional Information Email | fundinfo@massmutual.com | |
| Additional Information Website | https://www.massmutual.com/product-performance/variable-insurance-funds | |
| Expenses [Text Block] | WHAT WERE THE FUND COSTS FOR THE LAST SIX MONTHS? This example shows the expenses you would have paid over the past six months, based on a hypothetical $10,000 investment. This table reflects any applicable waivers or expense limitations.
Class Name
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
Class II
$44
0.81% | |
| Expenses Paid, Amount | $ 44 | |
| Expense Ratio, Percent | 0.81% | |
| Net Assets | $ 147,800,000 | |
| Holdings Count | $ / shares | 65 | |
| Investment Company Portfolio Turnover | 17% | |
| Additional Fund Statistics [Text Block] | WHAT ARE SOME KEY FUND STATISTICS? (as of June 30, 2024)
Total Net Assets (Millions)
$147.8
Total Number of Portfolio Holdings (includes derivative positions, if any)
65
Portfolio Turnover Rate
17% | |
| Holdings [Text Block] | Largest Holdings (% of Total Investments)
Microsoft Corp.
8.4%
NVIDIA Corp.
7.5%
Apple, Inc.
5.5%
Alphabet, Inc. Class A
4.8%
Amazon.com, Inc.
4.3%
Meta Platforms, Inc.
2.9%
Exxon Mobil Corp.
2.7%
JP Morgan Chase & Co.
2.6%
Philip Morris International, Inc.
2.5%
UnitedHealth Group, Inc.
2.4%
Sectors (% of Total Investments)
Information Technology
30.0%
Health Care
14.3%
Financials
13.9%
Communication Services
11.1%
Industrials
8.4%
Consumer Discretionary
6.6%
Consumer Staples
6.5%
Energy
3.9%
Utilities
1.6%
Materials
1.6%
Real Estate
1.5% | |
| Updated Prospectus Web Address | https://www.massmutual.com/product-performance/variable-insurance-funds | |
| Service Class I | | |
| Shareholder Report [Line Items] | | |
| Fund Name | MML Fundamental Equity Fund | |
| Class Name | Service Class I | |
| No Trading Symbol Flag | true | |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about the MML Fundamental Equity Fund (the “Fund”) for the period of January 1, 2024 to June 30, 2024. | |
| Shareholder Report Annual or Semi-Annual | semi-annual shareholder report | |
| Additional Information [Text Block] | You can find additional information about the Fund at https://www.massmutual.com/product-performance/variable-insurance-funds . You can also request this information by contacting us at 1-888-309-3539 or by sending an email request to fundinfo massmutual.com . | |
| Additional Information Phone Number | 1-888-309-3539 | |
| Additional Information Email | fundinfo@massmutual.com | |
| Additional Information Website | https://www.massmutual.com/product-performance/variable-insurance-funds | |
| Expenses [Text Block] | WHAT WERE THE FUND COSTS FOR THE LAST SIX MONTHS? This example shows the expenses you would have paid over the past six months, based on a hypothetical $10,000 investment. This table reflects any applicable waivers or expense limitations.
Class Name
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
Service Class I
$57
1.06% | |
| Expenses Paid, Amount | $ 57 | |
| Expense Ratio, Percent | 1.06% | |
| Net Assets | $ 147,800,000 | |
| Holdings Count | $ / shares | 65 | |
| Investment Company Portfolio Turnover | 17% | |
| Additional Fund Statistics [Text Block] | WHAT ARE SOME KEY FUND STATISTICS? (as of June 30, 2024)
Total Net Assets (Millions)
$147.8
Total Number of Portfolio Holdings (includes derivative positions, if any)
65
Portfolio Turnover Rate
17% | |
| Holdings [Text Block] | Largest Holdings (% of Total Investments)
Microsoft Corp.
8.4%
NVIDIA Corp.
7.5%
Apple, Inc.
5.5%
Alphabet, Inc. Class A
4.8%
Amazon.com, Inc.
4.3%
Meta Platforms, Inc.
2.9%
Exxon Mobil Corp.
2.7%
JP Morgan Chase & Co.
2.6%
Philip Morris International, Inc.
2.5%
UnitedHealth Group, Inc.
2.4%
Sectors (% of Total Investments)
Information Technology
30.0%
Health Care
14.3%
Financials
13.9%
Communication Services
11.1%
Industrials
8.4%
Consumer Discretionary
6.6%
Consumer Staples
6.5%
Energy
3.9%
Utilities
1.6%
Materials
1.6%
Real Estate
1.5% | |
| Updated Prospectus Web Address | https://www.massmutual.com/product-performance/variable-insurance-funds | |
| Class II | | |
| Shareholder Report [Line Items] | | |
| Fund Name | MML Fundamental Value Fund | |
| Class Name | Class II | |
| No Trading Symbol Flag | true | |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about the MML Fundamental Value Fund (the “Fund”) for the period of January 1, 2024 to June 30, 2024. | |
| Shareholder Report Annual or Semi-Annual | semi-annual shareholder report | |
| Additional Information [Text Block] | You can find additional information about the Fund at https://www.massmutual.com/product-performance/variable-insurance-funds . You can also request this information by contacting us at 1-888-309-3539 or by sending an email request to fundinfo massmutual.com . | |
| Additional Information Phone Number | 1-888-309-3539 | |
| Additional Information Email | fundinfo@massmutual.com | |
| Additional Information Website | https://www.massmutual.com/product-performance/variable-insurance-funds | |
| Expenses [Text Block] | WHAT WERE THE FUND COSTS FOR THE LAST SIX MONTHS? This example shows the expenses you would have paid over the past six months, based on a hypothetical $10,000 investment. This table reflects any applicable waivers or expense limitations.
Class Name
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
Class II
$42
0.80% | |
| Expenses Paid, Amount | $ 42 | |
| Expense Ratio, Percent | 0.80% | |
| Net Assets | $ 166,300,000 | |
| Holdings Count | $ / shares | 90 | |
| Investment Company Portfolio Turnover | 25% | |
| Additional Fund Statistics [Text Block] | WHAT ARE SOME KEY FUND STATISTICS? (as of June 30, 2024)
Total Net Assets (Millions)
$166.3
Total Number of Portfolio Holdings (includes derivative positions, if any)
90
Portfolio Turnover Rate
25% | |
| Holdings [Text Block] | Largest Holdings (% of Total Investments)
JP Morgan Chase & Co.
4.5%
Alphabet, Inc. Class A
3.6%
Berkshire Hathaway, Inc. Class B
3.5%
Oracle Corp.
2.6%
Morgan Stanley
2.2%
Wells Fargo & Co.
1.9%
UnitedHealth Group, Inc.
1.8%
Philip Morris International, Inc.
1.8%
Walmart, Inc.
1.8%
Cencora, Inc.
1.7%
Sectors (% of Total Investments)
Financials
23.6%
Information Technology
14.2%
Industrials
12.9%
Health Care
12.9%
Energy
10.1%
Consumer Staples
8.0%
Communication Services
6.3%
Consumer Discretionary
6.1%
Materials
2.5%
Utilities
1.3%
Real Estate
0.7% | |
| Updated Prospectus Web Address | https://www.massmutual.com/product-performance/variable-insurance-funds | |
| Service Class I | | |
| Shareholder Report [Line Items] | | |
| Fund Name | MML Fundamental Value Fund | |
| Class Name | Service Class I | |
| No Trading Symbol Flag | true | |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about the MML Fundamental Value Fund (the “Fund”) for the period of January 1, 2024 to June 30, 2024. | |
| Shareholder Report Annual or Semi-Annual | semi-annual shareholder report | |
| Additional Information [Text Block] | You can find additional information about the Fund at https://www.massmutual.com/product-performance/variable-insurance-funds . You can also request this information by contacting us at 1-888-309-3539 or by sending an email request to fundinfo massmutual.com . | |
| Additional Information Phone Number | 1-888-309-3539 | |
| Additional Information Email | fundinfo@massmutual.com | |
| Additional Information Website | https://www.massmutual.com/product-performance/variable-insurance-funds | |
| Expenses [Text Block] | WHAT WERE THE FUND COSTS FOR THE LAST SIX MONTHS? This example shows the expenses you would have paid over the past six months, based on a hypothetical $10,000 investment. This table reflects any applicable waivers or expense limitations.
Class Name
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
Service Class I
$55
1.05% | |
| Expenses Paid, Amount | $ 55 | |
| Expense Ratio, Percent | 1.05% | |
| Net Assets | $ 166,300,000 | |
| Holdings Count | $ / shares | 90 | |
| Investment Company Portfolio Turnover | 25% | |
| Additional Fund Statistics [Text Block] | WHAT ARE SOME KEY FUND STATISTICS? (as of June 30, 2024)
Total Net Assets (Millions)
$166.3
Total Number of Portfolio Holdings (includes derivative positions, if any)
90
Portfolio Turnover Rate
25% | |
| Holdings [Text Block] | Largest Holdings (% of Total Investments)
JP Morgan Chase & Co.
4.5%
Alphabet, Inc. Class A
3.6%
Berkshire Hathaway, Inc. Class B
3.5%
Oracle Corp.
2.6%
Morgan Stanley
2.2%
Wells Fargo & Co.
1.9%
UnitedHealth Group, Inc.
1.8%
Philip Morris International, Inc.
1.8%
Walmart, Inc.
1.8%
Cencora, Inc.
1.7%
Sectors (% of Total Investments)
Financials
23.6%
Information Technology
14.2%
Industrials
12.9%
Health Care
12.9%
Energy
10.1%
Consumer Staples
8.0%
Communication Services
6.3%
Consumer Discretionary
6.1%
Materials
2.5%
Utilities
1.3%
Real Estate
0.7% | |
| Updated Prospectus Web Address | https://www.massmutual.com/product-performance/variable-insurance-funds | |
| Class I | | |
| Shareholder Report [Line Items] | | |
| Fund Name | MML Global Fund | |
| Class Name | Class I | |
| No Trading Symbol Flag | true | |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about the MML Global Fund (the “Fund”) for the period of January 1, 2024 to June 30, 2024. | |
| Shareholder Report Annual or Semi-Annual | semi-annual shareholder report | |
| Additional Information [Text Block] | You can find additional information about the Fund at https://www.massmutual.com/product-performance/variable-insurance-funds . You can also request this information by contacting us at 1-888-309-3539 or by sending an email request to fundinfo massmutual.com . | |
| Additional Information Phone Number | 1-888-309-3539 | |
| Additional Information Email | fundinfo@massmutual.com | |
| Additional Information Website | https://www.massmutual.com/product-performance/variable-insurance-funds | |
| Expenses [Text Block] | WHAT WERE THE FUND COSTS FOR THE LAST SIX MONTHS? This example shows the expenses you would have paid over the past six months, based on a hypothetical $10,000 investment. This table reflects any applicable waivers or expense limitations.
Class Name
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
Class I
$43
0.86% | |
| Expenses Paid, Amount | $ 43 | |
| Expense Ratio, Percent | 0.86% | |
| Net Assets | $ 125,000,000 | |
| Holdings Count | $ / shares | 86 | |
| Investment Company Portfolio Turnover | 12% | |
| Additional Fund Statistics [Text Block] | WHAT ARE SOME KEY FUND STATISTICS? (as of June 30, 2024)
Total Net Assets (Millions)
$125.0
Total Number of Portfolio Holdings (includes derivative positions, if any)
86
Portfolio Turnover Rate
12% | |
| Holdings [Text Block] | Largest Holdings (% of Total Investments)
Visa, Inc. Class A
2.8%
Schneider Electric SE
2.6%
Thermo Fisher Scientific, Inc.
2.4%
Alphabet, Inc. Class A
2.4%
Charles Schwab Corp.
2.3%
Medtronic PLC
2.2%
Oracle Corp.
2.1%
Honeywell International, Inc.
2.1%
Microsoft Corp.
2.1%
Willis Towers Watson PLC
2.1%
Sectors (% of Total Investments)
Industrials
18.9%
Financials
17.9%
Health Care
17.2%
Information Technology
12.0%
Consumer Discretionary
8.7%
Consumer Staples
8.7%
Communication Services
7.2%
Materials
7.1%
Largest Countries (% of Total Investments)
United States
59.7%
France
7.7%
United Kingdom
6.8%
Switzerland
4.5%
Canada
3.2%
Spain
3.1%
Germany
3.1%
Japan
2.5%
Netherlands
2.2%
Israel
1.3% | |
| Updated Prospectus Web Address | https://www.massmutual.com/product-performance/variable-insurance-funds | |
| Class II | | |
| Shareholder Report [Line Items] | | |
| Fund Name | MML Global Fund | |
| Class Name | Class II | |
| No Trading Symbol Flag | true | |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about the MML Global Fund (the “Fund”) for the period of January 1, 2024 to June 30, 2024. | |
| Shareholder Report Annual or Semi-Annual | semi-annual shareholder report | |
| Additional Information [Text Block] | You can find additional information about the Fund at https://www.massmutual.com/product-performance/variable-insurance-funds . You can also request this information by contacting us at 1-888-309-3539 or by sending an email request to fundinfo massmutual.com . | |
| Additional Information Phone Number | 1-888-309-3539 | |
| Additional Information Email | fundinfo@massmutual.com | |
| Additional Information Website | https://www.massmutual.com/product-performance/variable-insurance-funds | |
| Expenses [Text Block] | WHAT WERE THE FUND COSTS FOR THE LAST SIX MONTHS? This example shows the expenses you would have paid over the past six months, based on a hypothetical $10,000 investment. This table reflects any applicable waivers or expense limitations.
Class Name
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
Class II
$43
0.86% | |
| Expenses Paid, Amount | $ 43 | |
| Expense Ratio, Percent | 0.86% | |
| Net Assets | $ 125,000,000 | |
| Holdings Count | $ / shares | 86 | |
| Investment Company Portfolio Turnover | 12% | |
| Additional Fund Statistics [Text Block] | WHAT ARE SOME KEY FUND STATISTICS? (as of June 30, 2024)
Total Net Assets (Millions)
$125.0
Total Number of Portfolio Holdings (includes derivative positions, if any)
86
Portfolio Turnover Rate
12% | |
| Holdings [Text Block] | Largest Holdings (% of Total Investments)
Visa, Inc. Class A
2.8%
Schneider Electric SE
2.6%
Thermo Fisher Scientific, Inc.
2.4%
Alphabet, Inc. Class A
2.4%
Charles Schwab Corp.
2.3%
Medtronic PLC
2.2%
Oracle Corp.
2.1%
Honeywell International, Inc.
2.1%
Microsoft Corp.
2.1%
Willis Towers Watson PLC
2.1%
Sectors (% of Total Investments)
Industrials
18.9%
Financials
17.9%
Health Care
17.2%
Information Technology
12.0%
Consumer Discretionary
8.7%
Consumer Staples
8.7%
Communication Services
7.2%
Materials
7.1%
Largest Countries (% of Total Investments)
United States
59.7%
France
7.7%
United Kingdom
6.8%
Switzerland
4.5%
Canada
3.2%
Spain
3.1%
Germany
3.1%
Japan
2.5%
Netherlands
2.2%
Israel
1.3% | |
| Updated Prospectus Web Address | https://www.massmutual.com/product-performance/variable-insurance-funds | |
| Service Class I | | |
| Shareholder Report [Line Items] | | |
| Fund Name | MML Global Fund | |
| Class Name | Service Class I | |
| No Trading Symbol Flag | true | |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about the MML Global Fund (the “Fund”) for the period of January 1, 2024 to June 30, 2024. | |
| Shareholder Report Annual or Semi-Annual | semi-annual shareholder report | |
| Additional Information [Text Block] | You can find additional information about the Fund at https://www.massmutual.com/product-performance/variable-insurance-funds . You can also request this information by contacting us at 1-888-309-3539 or by sending an email request to fundinfo massmutual.com . | |
| Additional Information Phone Number | 1-888-309-3539 | |
| Additional Information Email | fundinfo@massmutual.com | |
| Additional Information Website | https://www.massmutual.com/product-performance/variable-insurance-funds | |
| Expenses [Text Block] | WHAT WERE THE FUND COSTS FOR THE LAST SIX MONTHS? This example shows the expenses you would have paid over the past six months, based on a hypothetical $10,000 investment. This table reflects any applicable waivers or expense limitations.
Class Name
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
Service Class I
$56
1.11% | |
| Expenses Paid, Amount | $ 56 | |
| Expense Ratio, Percent | 1.11% | |
| Net Assets | $ 125,000,000 | |
| Holdings Count | $ / shares | 86 | |
| Investment Company Portfolio Turnover | 12% | |
| Additional Fund Statistics [Text Block] | WHAT ARE SOME KEY FUND STATISTICS? (as of June 30, 2024)
Total Net Assets (Millions)
$125.0
Total Number of Portfolio Holdings (includes derivative positions, if any)
86
Portfolio Turnover Rate
12% | |
| Holdings [Text Block] | Largest Holdings (% of Total Investments)
Visa, Inc. Class A
2.8%
Schneider Electric SE
2.6%
Thermo Fisher Scientific, Inc.
2.4%
Alphabet, Inc. Class A
2.4%
Charles Schwab Corp.
2.3%
Medtronic PLC
2.2%
Oracle Corp.
2.1%
Honeywell International, Inc.
2.1%
Microsoft Corp.
2.1%
Willis Towers Watson PLC
2.1%
Sectors (% of Total Investments)
Industrials
18.9%
Financials
17.9%
Health Care
17.2%
Information Technology
12.0%
Consumer Discretionary
8.7%
Consumer Staples
8.7%
Communication Services
7.2%
Materials
7.1%
Largest Countries (% of Total Investments)
United States
59.7%
France
7.7%
United Kingdom
6.8%
Switzerland
4.5%
Canada
3.2%
Spain
3.1%
Germany
3.1%
Japan
2.5%
Netherlands
2.2%
Israel
1.3% | |
| Updated Prospectus Web Address | https://www.massmutual.com/product-performance/variable-insurance-funds | |
| Initial Class | | |
| Shareholder Report [Line Items] | | |
| Fund Name | MML Income & Growth Fund | |
| Class Name | Initial Class | |
| No Trading Symbol Flag | true | |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about the MML Income & Growth Fund (the “Fund”) for the period of January 1, 2024 to June 30, 2024. | |
| Shareholder Report Annual or Semi-Annual | semi-annual shareholder report | |
| Additional Information [Text Block] | You can find additional information about the Fund at https://www.massmutual.com/product-performance/variable-insurance-funds . You can also request this information by contacting us at 1-888-309-3539 or by sending an email request to fundinfo massmutual.com . | |
| Additional Information Phone Number | 1-888-309-3539 | |
| Additional Information Email | fundinfo@massmutual.com | |
| Additional Information Website | https://www.massmutual.com/product-performance/variable-insurance-funds | |
| Expenses [Text Block] | WHAT WERE THE FUND COSTS FOR THE LAST SIX MONTHS? This example shows the expenses you would have paid over the past six months, based on a hypothetical $10,000 investment. This table reflects any applicable waivers or expense limitations.
Class Name
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
Initial Class
$37
0.72% | |
| Expenses Paid, Amount | $ 37 | |
| Expense Ratio, Percent | 0.72% | |
| Net Assets | $ 147,400,000 | |
| Holdings Count | $ / shares | 88 | |
| Investment Company Portfolio Turnover | 16% | |
| Additional Fund Statistics [Text Block] | WHAT ARE SOME KEY FUND STATISTICS? (as of June 30, 2024)
Total Net Assets (Millions)
$147.4
Total Number of Portfolio Holdings (includes derivative positions, if any)
88
Portfolio Turnover Rate
16% | |
| Holdings [Text Block] | Largest Holdings (% of Total Investments)
Philip Morris International, Inc.
3.0%
Fidelity National Information Services, Inc.
2.8%
Merck & Co., Inc.
2.7%
Air Products & Chemicals, Inc.
2.5%
Entergy Corp.
2.4%
Hess Corp.
2.3%
Enbridge, Inc.
2.2%
Sanofi SA ADR
2.2%
Public Storage
2.1%
Chubb Ltd.
2.1%
Sectors (% of Total Investments)
Financials
16.1%
Health Care
14.7%
Industrials
11.3%
Energy
9.7%
Consumer Staples
8.9%
Materials
8.3%
Information Technology
7.0%
Real Estate
6.8%
Consumer Discretionary
5.6%
Utilities
5.0%
Communication Services
4.4% | |
| Updated Prospectus Web Address | https://www.massmutual.com/product-performance/variable-insurance-funds | |
| Service Class | | |
| Shareholder Report [Line Items] | | |
| Fund Name | MML Income & Growth Fund | |
| Class Name | Service Class | |
| No Trading Symbol Flag | true | |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about the MML Income & Growth Fund (the “Fund”) for the period of January 1, 2024 to June 30, 2024. | |
| Shareholder Report Annual or Semi-Annual | semi-annual shareholder report | |
| Additional Information [Text Block] | You can find additional information about the Fund at https://www.massmutual.com/product-performance/variable-insurance-funds . You can also request this information by contacting us at 1-888-309-3539 or by sending an email request to fundinfo massmutual.com . | |
| Additional Information Phone Number | 1-888-309-3539 | |
| Additional Information Email | fundinfo@massmutual.com | |
| Additional Information Website | https://www.massmutual.com/product-performance/variable-insurance-funds | |
| Expenses [Text Block] | WHAT WERE THE FUND COSTS FOR THE LAST SIX MONTHS? This example shows the expenses you would have paid over the past six months, based on a hypothetical $10,000 investment. This table reflects any applicable waivers or expense limitations.
Class Name
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
Service Class
$50
0.97% | |
| Expenses Paid, Amount | $ 50 | |
| Expense Ratio, Percent | 0.97% | |
| Net Assets | $ 147,400,000 | |
| Holdings Count | $ / shares | 88 | |
| Investment Company Portfolio Turnover | 16% | |
| Additional Fund Statistics [Text Block] | WHAT ARE SOME KEY FUND STATISTICS? (as of June 30, 2024)
Total Net Assets (Millions)
$147.4
Total Number of Portfolio Holdings (includes derivative positions, if any)
88
Portfolio Turnover Rate
16% | |
| Holdings [Text Block] | Largest Holdings (% of Total Investments)
Philip Morris International, Inc.
3.0%
Fidelity National Information Services, Inc.
2.8%
Merck & Co., Inc.
2.7%
Air Products & Chemicals, Inc.
2.5%
Entergy Corp.
2.4%
Hess Corp.
2.3%
Enbridge, Inc.
2.2%
Sanofi SA ADR
2.2%
Public Storage
2.1%
Chubb Ltd.
2.1%
Sectors (% of Total Investments)
Financials
16.1%
Health Care
14.7%
Industrials
11.3%
Energy
9.7%
Consumer Staples
8.9%
Materials
8.3%
Information Technology
7.0%
Real Estate
6.8%
Consumer Discretionary
5.6%
Utilities
5.0%
Communication Services
4.4% | |
| Updated Prospectus Web Address | https://www.massmutual.com/product-performance/variable-insurance-funds | |
| Class II | | |
| Shareholder Report [Line Items] | | |
| Fund Name | MML International Equity Fund | |
| Class Name | Class II | |
| No Trading Symbol Flag | true | |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about the MML International Equity Fund (the “Fund”) for the period of January 1, 2024 to June 30, 2024. | |
| Shareholder Report Annual or Semi-Annual | semi-annual shareholder report | |
| Additional Information [Text Block] | You can find additional information about the Fund at https://www.massmutual.com/product-performance/variable-insurance-funds . You can also request this information by contacting us at 1-888-309-3539 or by sending an email request to fundinfo massmutual.com . | |
| Additional Information Phone Number | 1-888-309-3539 | |
| Additional Information Email | fundinfo@massmutual.com | |
| Additional Information Website | https://www.massmutual.com/product-performance/variable-insurance-funds | |
| Expenses [Text Block] | WHAT WERE THE FUND COSTS FOR THE LAST SIX MONTHS? This example shows the expenses you would have paid over the past six months, based on a hypothetical $10,000 investment. This table reflects any applicable waivers or expense limitations.
Class Name
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
Class II
$48
0.96% | |
| Expenses Paid, Amount | $ 48 | |
| Expense Ratio, Percent | 0.96% | |
| Net Assets | $ 234,900,000 | |
| Holdings Count | $ / shares | 132 | |
| Investment Company Portfolio Turnover | 8% | |
| Additional Fund Statistics [Text Block] | WHAT ARE SOME KEY FUND STATISTICS? (as of June 30, 2024)
Total Net Assets (Millions)
$234.9
Total Number of Portfolio Holdings (includes derivative positions, if any)
132
Portfolio Turnover Rate
8% | |
| Holdings [Text Block] | Largest Holdings (% of Total Investments)
Schneider Electric SE
2.2%
SAP SE
2.1%
Hitachi Ltd.
2.1%
Roche Holding AG
2.0%
Novo Nordisk AS Class B
2.0%
Air Liquide SA
1.9%
Novartis AG Registered
1.8%
Intesa Sanpaolo SpA
1.8%
Nestle SA Registered
1.7%
Capgemini SE
1.7%
Sectors (% of Total Investments)
Industrials
19.9%
Financials
19.7%
Consumer Discretionary
14.9%
Health Care
14.3%
Information Technology
9.0%
Consumer Staples
8.7%
Materials
6.3%
Communication Services
2.9%
Energy
2.0%
Utilities
0.8%
Largest Countries (% of Total Investments)
France
15.0%
Germany
14.1%
Japan
11.6%
United States
10.0%
United Kingdom
9.9%
Switzerland
7.8%
Italy
3.9%
Denmark
3.3%
Canada
3.1%
China
2.9% | |
| Updated Prospectus Web Address | https://www.massmutual.com/product-performance/variable-insurance-funds | |
| Service Class I | | |
| Shareholder Report [Line Items] | | |
| Fund Name | MML International Equity Fund | |
| Class Name | Service Class I | |
| No Trading Symbol Flag | true | |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about the MML International Equity Fund (the “Fund”) for the period of January 1, 2024 to June 30, 2024. | |
| Shareholder Report Annual or Semi-Annual | semi-annual shareholder report | |
| Additional Information [Text Block] | You can find additional information about the Fund at https://www.massmutual.com/product-performance/variable-insurance-funds . You can also request this information by contacting us at 1-888-309-3539 or by sending an email request to fundinfo massmutual.com . | |
| Additional Information Phone Number | 1-888-309-3539 | |
| Additional Information Email | fundinfo@massmutual.com | |
| Additional Information Website | https://www.massmutual.com/product-performance/variable-insurance-funds | |
| Expenses [Text Block] | WHAT WERE THE FUND COSTS FOR THE LAST SIX MONTHS? This example shows the expenses you would have paid over the past six months, based on a hypothetical $10,000 investment. This table reflects any applicable waivers or expense limitations.
Class Name
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
Service Class I
$61
1.21% | |
| Expenses Paid, Amount | $ 61 | |
| Expense Ratio, Percent | 1.21% | |
| Net Assets | $ 234,900,000 | |
| Holdings Count | $ / shares | 132 | |
| Investment Company Portfolio Turnover | 8% | |
| Additional Fund Statistics [Text Block] | WHAT ARE SOME KEY FUND STATISTICS? (as of June 30, 2024)
Total Net Assets (Millions)
$234.9
Total Number of Portfolio Holdings (includes derivative positions, if any)
132
Portfolio Turnover Rate
8% | |
| Holdings [Text Block] | Largest Holdings (% of Total Investments)
Schneider Electric SE
2.2%
SAP SE
2.1%
Hitachi Ltd.
2.1%
Roche Holding AG
2.0%
Novo Nordisk AS Class B
2.0%
Air Liquide SA
1.9%
Novartis AG Registered
1.8%
Intesa Sanpaolo SpA
1.8%
Nestle SA Registered
1.7%
Capgemini SE
1.7%
Sectors (% of Total Investments)
Industrials
19.9%
Financials
19.7%
Consumer Discretionary
14.9%
Health Care
14.3%
Information Technology
9.0%
Consumer Staples
8.7%
Materials
6.3%
Communication Services
2.9%
Energy
2.0%
Utilities
0.8%
Largest Countries (% of Total Investments)
France
15.0%
Germany
14.1%
Japan
11.6%
United States
10.0%
United Kingdom
9.9%
Switzerland
7.8%
Italy
3.9%
Denmark
3.3%
Canada
3.1%
China
2.9% | |
| Updated Prospectus Web Address | https://www.massmutual.com/product-performance/variable-insurance-funds | |
| Initial Class | | |
| Shareholder Report [Line Items] | | |
| Fund Name | MML Large Cap Growth Fund | |
| Class Name | Initial Class | |
| No Trading Symbol Flag | true | |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about the MML Large Cap Growth Fund (the “Fund”) for the period of January 1, 2024 to June 30, 2024. | |
| Shareholder Report Annual or Semi-Annual | semi-annual shareholder report | |
| Additional Information [Text Block] | You can find additional information about the Fund at https://www.massmutual.com/product-performance/variable-insurance-funds . You can also request this information by contacting us at 1-888-309-3539 or by sending an email request to fundinfo massmutual.com . | |
| Additional Information Phone Number | 1-888-309-3539 | |
| Additional Information Email | fundinfo@massmutual.com | |
| Additional Information Website | https://www.massmutual.com/product-performance/variable-insurance-funds | |
| Expenses [Text Block] | WHAT WERE THE FUND COSTS FOR THE LAST SIX MONTHS? This example shows the expenses you would have paid over the past six months, based on a hypothetical $10,000 investment. This table reflects any applicable waivers or expense limitations.
Class Name
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
Initial Class
$38
0.70% | |
| Expenses Paid, Amount | $ 38 | |
| Expense Ratio, Percent | 0.70% | |
| Net Assets | $ 205,500,000 | |
| Holdings Count | $ / shares | 38 | |
| Investment Company Portfolio Turnover | 5% | |
| Additional Fund Statistics [Text Block] | WHAT ARE SOME KEY FUND STATISTICS? (as of June 30, 2024)
Total Net Assets (Millions)
$205.5
Total Number of Portfolio Holdings (includes derivative positions, if any)
38
Portfolio Turnover Rate
5% | |
| Holdings [Text Block] | Largest Holdings (% of Total Investments)
NVIDIA Corp.
9.9%
Meta Platforms, Inc.
7.3%
Amazon.com, Inc.
6.0%
Tesla, Inc.
5.9%
Microsoft Corp.
5.2%
Netflix, Inc.
5.2%
Boeing Co.
4.9%
Alphabet, Inc. Class A
4.8%
Visa, Inc. Class A
4.7%
Oracle Corp.
4.6%
Sectors (% of Total Investments)
Information Technology
29.8%
Communication Services
22.0%
Consumer Discretionary
15.1%
Health Care
12.9%
Financials
8.6%
Industrials
6.8%
Consumer Staples
2.2% | |
| Updated Prospectus Web Address | https://www.massmutual.com/product-performance/variable-insurance-funds | |
| Service Class | | |
| Shareholder Report [Line Items] | | |
| Fund Name | MML Large Cap Growth Fund | |
| Class Name | Service Class | |
| No Trading Symbol Flag | true | |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about the MML Large Cap Growth Fund (the “Fund”) for the period of January 1, 2024 to June 30, 2024. | |
| Shareholder Report Annual or Semi-Annual | semi-annual shareholder report | |
| Additional Information [Text Block] | You can find additional information about the Fund at https://www.massmutual.com/product-performance/variable-insurance-funds . You can also request this information by contacting us at 1-888-309-3539 or by sending an email request to fundinfo massmutual.com . | |
| Additional Information Phone Number | 1-888-309-3539 | |
| Additional Information Email | fundinfo@massmutual.com | |
| Additional Information Website | https://www.massmutual.com/product-performance/variable-insurance-funds | |
| Expenses [Text Block] | WHAT WERE THE FUND COSTS FOR THE LAST SIX MONTHS? This example shows the expenses you would have paid over the past six months, based on a hypothetical $10,000 investment. This table reflects any applicable waivers or expense limitations.
Class Name
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
Service Class
$51
0.95% | |
| Expenses Paid, Amount | $ 51 | |
| Expense Ratio, Percent | 0.95% | |
| Net Assets | $ 205,500,000 | |
| Holdings Count | $ / shares | 38 | |
| Investment Company Portfolio Turnover | 5% | |
| Additional Fund Statistics [Text Block] | WHAT ARE SOME KEY FUND STATISTICS? (as of June 30, 2024)
Total Net Assets (Millions)
$205.5
Total Number of Portfolio Holdings (includes derivative positions, if any)
38
Portfolio Turnover Rate
5% | |
| Holdings [Text Block] | Largest Holdings (% of Total Investments)
NVIDIA Corp.
9.9%
Meta Platforms, Inc.
7.3%
Amazon.com, Inc.
6.0%
Tesla, Inc.
5.9%
Microsoft Corp.
5.2%
Netflix, Inc.
5.2%
Boeing Co.
4.9%
Alphabet, Inc. Class A
4.8%
Visa, Inc. Class A
4.7%
Oracle Corp.
4.6%
Sectors (% of Total Investments)
Information Technology
29.8%
Communication Services
22.0%
Consumer Discretionary
15.1%
Health Care
12.9%
Financials
8.6%
Industrials
6.8%
Consumer Staples
2.2% | |
| Updated Prospectus Web Address | https://www.massmutual.com/product-performance/variable-insurance-funds | |
| Initial Class | | |
| Shareholder Report [Line Items] | | |
| Fund Name | MML Managed Volatility Fund | |
| Class Name | Initial Class | |
| No Trading Symbol Flag | true | |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about the MML Managed Volatility Fund (the “Fund”) for the period of January 1, 2024 to June 30, 2024. | |
| Shareholder Report Annual or Semi-Annual | semi-annual shareholder report | |
| Additional Information [Text Block] | You can find additional information about the Fund at https://www.massmutual.com/product-performance/variable-insurance-funds . You can also request this information by contacting us at 1-888-309-3539 or by sending an email request to fundinfo massmutual.com . | |
| Additional Information Phone Number | 1-888-309-3539 | |
| Additional Information Email | fundinfo@massmutual.com | |
| Additional Information Website | https://www.massmutual.com/product-performance/variable-insurance-funds | |
| Expenses [Text Block] | WHAT WERE THE FUND COSTS FOR THE LAST SIX MONTHS? This example shows the expenses you would have paid over the past six months, based on a hypothetical $10,000 investment. This table reflects any applicable waivers or expense limitations.
Class Name
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
Initial Class
$62
1.19% | |
| Expenses Paid, Amount | $ 62 | |
| Expense Ratio, Percent | 1.19% | |
| Net Assets | $ 102,200,000 | |
| Holdings Count | $ / shares | 522 | |
| Investment Company Portfolio Turnover | 4% | |
| Additional Fund Statistics [Text Block] | WHAT ARE SOME KEY FUND STATISTICS? (as of June 30, 2024)
Total Net Assets (Millions)
$102.2
Total Number of Portfolio Holdings (includes derivative positions, if any)
522
Portfolio Turnover Rate
4% | |
| Holdings [Text Block] | Largest Holdings (% of Total Investments)
Microsoft Corp.
7.1%
NVIDIA Corp.
6.5%
Apple, Inc.
6.5%
Amazon.com, Inc.
3.8%
Meta Platforms, Inc.
2.4%
Alphabet, Inc. Class A
2.3%
Alphabet, Inc. Class C
1.9%
Berkshire Hathaway, Inc. Class B
1.6%
Eli Lilly & Co.
1.5%
Broadcom, Inc.
1.5%
Sectors (% of Total Investments)
Information Technology
31.7%
Financials
12.1%
Health Care
11.5%
Consumer Discretionary
9.7%
Communication Services
9.1%
Industrials
7.9%
Consumer Staples
5.6%
Energy
3.6%
Utilities
2.2%
Materials
2.1%
Real Estate
2.1% | |
| Updated Prospectus Web Address | https://www.massmutual.com/product-performance/variable-insurance-funds | |
| Service Class | | |
| Shareholder Report [Line Items] | | |
| Fund Name | MML Managed Volatility Fund | |
| Class Name | Service Class | |
| No Trading Symbol Flag | true | |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about the MML Managed Volatility Fund (the “Fund”) for the period of January 1, 2024 to June 30, 2024. | |
| Shareholder Report Annual or Semi-Annual | semi-annual shareholder report | |
| Additional Information [Text Block] | You can find additional information about the Fund at https://www.massmutual.com/product-performance/variable-insurance-funds . You can also request this information by contacting us at 1-888-309-3539 or by sending an email request to fundinfo massmutual.com . | |
| Additional Information Phone Number | 1-888-309-3539 | |
| Additional Information Email | fundinfo@massmutual.com | |
| Additional Information Website | https://www.massmutual.com/product-performance/variable-insurance-funds | |
| Expenses [Text Block] | WHAT WERE THE FUND COSTS FOR THE LAST SIX MONTHS? This example shows the expenses you would have paid over the past six months, based on a hypothetical $10,000 investment. This table reflects any applicable waivers or expense limitations.
Class Name
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
Service Class
$74
1.44% | |
| Expenses Paid, Amount | $ 74 | |
| Expense Ratio, Percent | 1.44% | |
| Net Assets | $ 102,200,000 | |
| Holdings Count | $ / shares | 522 | |
| Investment Company Portfolio Turnover | 4% | |
| Additional Fund Statistics [Text Block] | WHAT ARE SOME KEY FUND STATISTICS? (as of June 30, 2024)
Total Net Assets (Millions)
$102.2
Total Number of Portfolio Holdings (includes derivative positions, if any)
522
Portfolio Turnover Rate
4% | |
| Holdings [Text Block] | Largest Holdings (% of Total Investments)
Microsoft Corp.
7.1%
NVIDIA Corp.
6.5%
Apple, Inc.
6.5%
Amazon.com, Inc.
3.8%
Meta Platforms, Inc.
2.4%
Alphabet, Inc. Class A
2.3%
Alphabet, Inc. Class C
1.9%
Berkshire Hathaway, Inc. Class B
1.6%
Eli Lilly & Co.
1.5%
Broadcom, Inc.
1.5%
Sectors (% of Total Investments)
Information Technology
31.7%
Financials
12.1%
Health Care
11.5%
Consumer Discretionary
9.7%
Communication Services
9.1%
Industrials
7.9%
Consumer Staples
5.6%
Energy
3.6%
Utilities
2.2%
Materials
2.1%
Real Estate
2.1% | |
| Updated Prospectus Web Address | https://www.massmutual.com/product-performance/variable-insurance-funds | |
| Initial Class | | |
| Shareholder Report [Line Items] | | |
| Fund Name | MML Mid Cap Growth Fund | |
| Class Name | Initial Class | |
| No Trading Symbol Flag | true | |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about the MML Mid Cap Growth Fund (the “Fund”) for the period of January 1, 2024 to June 30, 2024. | |
| Shareholder Report Annual or Semi-Annual | semi-annual shareholder report | |
| Additional Information [Text Block] | You can find additional information about the Fund at https://www.massmutual.com/product-performance/variable-insurance-funds . You can also request this information by contacting us at 1-888-309-3539 or by sending an email request to fundinfo massmutual.com . | |
| Additional Information Phone Number | 1-888-309-3539 | |
| Additional Information Email | fundinfo@massmutual.com | |
| Additional Information Website | https://www.massmutual.com/product-performance/variable-insurance-funds | |
| Expenses [Text Block] | WHAT WERE THE FUND COSTS FOR THE LAST SIX MONTHS? This example shows the expenses you would have paid over the past six months, based on a hypothetical $10,000 investment. This table reflects any applicable waivers or expense limitations.
Class Name
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
Initial Class
$42
0.83% | |
| Expenses Paid, Amount | $ 42 | |
| Expense Ratio, Percent | 0.83% | |
| Net Assets | $ 323,000,000 | |
| Holdings Count | $ / shares | 148 | |
| Investment Company Portfolio Turnover | 22% | |
| Additional Fund Statistics [Text Block] | WHAT ARE SOME KEY FUND STATISTICS? (as of June 30, 2024)
Total Net Assets (Millions)
$323.0
Total Number of Portfolio Holdings (includes derivative positions, if any)
148
Portfolio Turnover Rate
22% | |
| Holdings [Text Block] | Largest Holdings (% of Total Investments)
PTC, Inc.
2.3%
Marvell Technology, Inc.
2.1%
Cheniere Energy, Inc.
2.1%
Microchip Technology, Inc.
2.0%
Hologic, Inc.
2.0%
Veeva Systems, Inc. Class A
1.9%
Trade Desk, Inc. Class A
1.7%
Ross Stores, Inc.
1.7%
Alnylam Pharmaceuticals, Inc.
1.6%
Domino’s Pizza, Inc.
1.5%
Sectors (% of Total Investments)
Information Technology
21.1%
Health Care
20.5%
Industrials
14.8%
Consumer Discretionary
11.3%
Financials
7.8%
Communication Services
6.1%
Energy
4.8%
Materials
4.2%
Consumer Staples
4.1%
Real Estate
1.0% | |
| Updated Prospectus Web Address | https://www.massmutual.com/product-performance/variable-insurance-funds | |
| Service Class | | |
| Shareholder Report [Line Items] | | |
| Fund Name | MML Mid Cap Growth Fund | |
| Class Name | Service Class | |
| No Trading Symbol Flag | true | |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about the MML Mid Cap Growth Fund (the “Fund”) for the period of January 1, 2024 to June 30, 2024. | |
| Shareholder Report Annual or Semi-Annual | semi-annual shareholder report | |
| Additional Information [Text Block] | You can find additional information about the Fund at https://www.massmutual.com/product-performance/variable-insurance-funds . You can also request this information by contacting us at 1-888-309-3539 or by sending an email request to fundinfo massmutual.com . | |
| Additional Information Phone Number | 1-888-309-3539 | |
| Additional Information Email | fundinfo@massmutual.com | |
| Additional Information Website | https://www.massmutual.com/product-performance/variable-insurance-funds | |
| Expenses [Text Block] | WHAT WERE THE FUND COSTS FOR THE LAST SIX MONTHS? This example shows the expenses you would have paid over the past six months, based on a hypothetical $10,000 investment. This table reflects any applicable waivers or expense limitations.
Class Name
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
Service Class
$54
1.08% | |
| Expenses Paid, Amount | $ 54 | |
| Expense Ratio, Percent | 1.08% | |
| Net Assets | $ 323,000,000 | |
| Holdings Count | $ / shares | 148 | |
| Investment Company Portfolio Turnover | 22% | |
| Additional Fund Statistics [Text Block] | WHAT ARE SOME KEY FUND STATISTICS? (as of June 30, 2024)
Total Net Assets (Millions)
$323.0
Total Number of Portfolio Holdings (includes derivative positions, if any)
148
Portfolio Turnover Rate
22% | |
| Holdings [Text Block] | Largest Holdings (% of Total Investments)
PTC, Inc.
2.3%
Marvell Technology, Inc.
2.1%
Cheniere Energy, Inc.
2.1%
Microchip Technology, Inc.
2.0%
Hologic, Inc.
2.0%
Veeva Systems, Inc. Class A
1.9%
Trade Desk, Inc. Class A
1.7%
Ross Stores, Inc.
1.7%
Alnylam Pharmaceuticals, Inc.
1.6%
Domino’s Pizza, Inc.
1.5%
Sectors (% of Total Investments)
Information Technology
21.1%
Health Care
20.5%
Industrials
14.8%
Consumer Discretionary
11.3%
Financials
7.8%
Communication Services
6.1%
Energy
4.8%
Materials
4.2%
Consumer Staples
4.1%
Real Estate
1.0% | |
| Updated Prospectus Web Address | https://www.massmutual.com/product-performance/variable-insurance-funds | |
| Initial Class | | |
| Shareholder Report [Line Items] | | |
| Fund Name | MML Mid Cap Value Fund | |
| Class Name | Initial Class | |
| No Trading Symbol Flag | true | |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about the MML Mid Cap Value Fund (the “Fund”) for the period of January 1, 2024 to June 30, 2024. | |
| Shareholder Report Annual or Semi-Annual | semi-annual shareholder report | |
| Additional Information [Text Block] | You can find additional information about the Fund at https://www.massmutual.com/product-performance/variable-insurance-funds . You can also request this information by contacting us at 1-888-309-3539 or by sending an email request to fundinfo massmutual.com . | |
| Additional Information Phone Number | 1-888-309-3539 | |
| Additional Information Email | fundinfo@massmutual.com | |
| Additional Information Website | https://www.massmutual.com/product-performance/variable-insurance-funds | |
| Expenses [Text Block] | WHAT WERE THE FUND COSTS FOR THE LAST SIX MONTHS? This example shows the expenses you would have paid over the past six months, based on a hypothetical $10,000 investment. This table reflects any applicable waivers or expense limitations.
Class Name
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
Initial Class
$44
0.89% | |
| Expenses Paid, Amount | $ 44 | |
| Expense Ratio, Percent | 0.89% | |
| Net Assets | $ 254,000,000 | |
| Holdings Count | $ / shares | 109 | |
| Investment Company Portfolio Turnover | 27% | |
| Additional Fund Statistics [Text Block] | WHAT ARE SOME KEY FUND STATISTICS? (as of June 30, 2024)
Total Net Assets (Millions)
$254.0
Total Number of Portfolio Holdings (includes derivative positions, if any)
109
Portfolio Turnover Rate
27% | |
| Holdings [Text Block] | Largest Holdings (% of Total Investments)
Zimmer Biomet Holdings, Inc.
3.0%
Bank of New York Mellon Corp.
2.2%
Conagra Brands, Inc.
2.1%
Enterprise Products Partners LP
2.0%
Northern Trust Corp.
1.9%
Koninklijke Ahold Delhaize NV
1.9%
Henry Schein, Inc.
1.9%
Willis Towers Watson PLC
1.9%
Edison International
1.8%
Quest Diagnostics, Inc.
1.8%
Sectors (% of Total Investments)
Financials
16.5%
Health Care
14.9%
Industrials
14.2%
Utilities
12.1%
Consumer Staples
11.4%
Real Estate
6.9%
Information Technology
6.8%
Energy
6.0%
Materials
4.2%
Communication Services
3.1%
Consumer Discretionary
2.6% | |
| Updated Prospectus Web Address | https://www.massmutual.com/product-performance/variable-insurance-funds | |
| Service Class | | |
| Shareholder Report [Line Items] | | |
| Fund Name | MML Mid Cap Value Fund | |
| Class Name | Service Class | |
| No Trading Symbol Flag | true | |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about the MML Mid Cap Value Fund (the “Fund”) for the period of January 1, 2024 to June 30, 2024. | |
| Shareholder Report Annual or Semi-Annual | semi-annual shareholder report | |
| Additional Information [Text Block] | You can find additional information about the Fund at https://www.massmutual.com/product-performance/variable-insurance-funds . You can also request this information by contacting us at 1-888-309-3539 or by sending an email request to fundinfo massmutual.com . | |
| Additional Information Phone Number | 1-888-309-3539 | |
| Additional Information Email | fundinfo@massmutual.com | |
| Additional Information Website | https://www.massmutual.com/product-performance/variable-insurance-funds | |
| Expenses [Text Block] | WHAT WERE THE FUND COSTS FOR THE LAST SIX MONTHS? This example shows the expenses you would have paid over the past six months, based on a hypothetical $10,000 investment. This table reflects any applicable waivers or expense limitations.
Class Name
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
Service Class
$57
1.14% | |
| Expenses Paid, Amount | $ 57 | |
| Expense Ratio, Percent | 1.14% | |
| Net Assets | $ 254,000,000 | |
| Holdings Count | $ / shares | 109 | |
| Investment Company Portfolio Turnover | 27% | |
| Additional Fund Statistics [Text Block] | WHAT ARE SOME KEY FUND STATISTICS? (as of June 30, 2024)
Total Net Assets (Millions)
$254.0
Total Number of Portfolio Holdings (includes derivative positions, if any)
109
Portfolio Turnover Rate
27% | |
| Holdings [Text Block] | Largest Holdings (% of Total Investments)
Zimmer Biomet Holdings, Inc.
3.0%
Bank of New York Mellon Corp.
2.2%
Conagra Brands, Inc.
2.1%
Enterprise Products Partners LP
2.0%
Northern Trust Corp.
1.9%
Koninklijke Ahold Delhaize NV
1.9%
Henry Schein, Inc.
1.9%
Willis Towers Watson PLC
1.9%
Edison International
1.8%
Quest Diagnostics, Inc.
1.8%
Sectors (% of Total Investments)
Financials
16.5%
Health Care
14.9%
Industrials
14.2%
Utilities
12.1%
Consumer Staples
11.4%
Real Estate
6.9%
Information Technology
6.8%
Energy
6.0%
Materials
4.2%
Communication Services
3.1%
Consumer Discretionary
2.6% | |
| Updated Prospectus Web Address | https://www.massmutual.com/product-performance/variable-insurance-funds | |
| Initial Class | | |
| Shareholder Report [Line Items] | | |
| Fund Name | MML Small Cap Growth Equity Fund | |
| Class Name | Initial Class | |
| No Trading Symbol Flag | true | |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about the MML Small Cap Growth Equity Fund (the “Fund”) for the period of January 1, 2024 to June 30, 2024. | |
| Shareholder Report Annual or Semi-Annual | semi-annual shareholder report | |
| Additional Information [Text Block] | You can find additional information about the Fund at https://www.massmutual.com/product-performance/variable-insurance-funds . You can also request this information by contacting us at 1-888-309-3539 or by sending an email request to fundinfo massmutual.com . | |
| Additional Information Phone Number | 1-888-309-3539 | |
| Additional Information Email | fundinfo@massmutual.com | |
| Additional Information Website | https://www.massmutual.com/product-performance/variable-insurance-funds | |
| Expenses [Text Block] | WHAT WERE THE FUND COSTS FOR THE LAST SIX MONTHS? This example shows the expenses you would have paid over the past six months, based on a hypothetical $10,000 investment. This table reflects any applicable waivers or expense limitations.
Class Name
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
Initial Class
$54
1.08% | |
| Expenses Paid, Amount | $ 54 | |
| Expense Ratio, Percent | 1.08% | |
| Net Assets | $ 146,000,000 | |
| Holdings Count | $ / shares | 179 | |
| Investment Company Portfolio Turnover | 19% | |
| Additional Fund Statistics [Text Block] | WHAT ARE SOME KEY FUND STATISTICS? (as of June 30, 2024)
Total Net Assets (Millions)
$146.0
Total Number of Portfolio Holdings (includes derivative positions, if any)
179
Portfolio Turnover Rate
19% | |
| Holdings [Text Block] | Largest Holdings (% of Total Investments)
Fluor Corp.
2.1%
Cabot Corp.
1.9%
Viper Energy, Inc.
1.7%
elf Beauty, Inc.
1.7%
AZEK Co., Inc.
1.5%
Verra Mobility Corp.
1.4%
Applied Industrial Technologies, Inc.
1.4%
PROCEPT BioRobotics Corp.
1.3%
Zurn Elkay Water Solutions Corp. Class C
1.2%
Haemonetics Corp.
1.2%
Sectors (% of Total Investments)
Industrials
23.0%
Health Care
18.7%
Information Technology
13.2%
Consumer Discretionary
10.9%
Financials
10.1%
Energy
6.4%
Real Estate
4.9%
Materials
3.5%
Communication Services
3.5%
Consumer Staples
3.2%
Utilities
1.0%
Domestic Equity
0.2% | |
| Updated Prospectus Web Address | https://www.massmutual.com/product-performance/variable-insurance-funds | |
| Service Class | | |
| Shareholder Report [Line Items] | | |
| Fund Name | MML Small Cap Growth Equity Fund | |
| Class Name | Service Class | |
| No Trading Symbol Flag | true | |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about the MML Small Cap Growth Equity Fund (the “Fund”) for the period of January 1, 2024 to June 30, 2024. | |
| Shareholder Report Annual or Semi-Annual | semi-annual shareholder report | |
| Additional Information [Text Block] | You can find additional information about the Fund at https://www.massmutual.com/product-performance/variable-insurance-funds . You can also request this information by contacting us at 1-888-309-3539 or by sending an email request to fundinfo massmutual.com . | |
| Additional Information Phone Number | 1-888-309-3539 | |
| Additional Information Email | fundinfo@massmutual.com | |
| Additional Information Website | https://www.massmutual.com/product-performance/variable-insurance-funds | |
| Expenses [Text Block] | WHAT WERE THE FUND COSTS FOR THE LAST SIX MONTHS? This example shows the expenses you would have paid over the past six months, based on a hypothetical $10,000 investment. This table reflects any applicable waivers or expense limitations.
Class Name
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
Service Class
$67
1.33% | |
| Expenses Paid, Amount | $ 67 | |
| Expense Ratio, Percent | 1.33% | |
| Net Assets | $ 146,000,000 | |
| Holdings Count | $ / shares | 179 | |
| Investment Company Portfolio Turnover | 19% | |
| Additional Fund Statistics [Text Block] | WHAT ARE SOME KEY FUND STATISTICS? (as of June 30, 2024)
Total Net Assets (Millions)
$146.0
Total Number of Portfolio Holdings (includes derivative positions, if any)
179
Portfolio Turnover Rate
19% | |
| Holdings [Text Block] | Largest Holdings (% of Total Investments)
Fluor Corp.
2.1%
Cabot Corp.
1.9%
Viper Energy, Inc.
1.7%
elf Beauty, Inc.
1.7%
AZEK Co., Inc.
1.5%
Verra Mobility Corp.
1.4%
Applied Industrial Technologies, Inc.
1.4%
PROCEPT BioRobotics Corp.
1.3%
Zurn Elkay Water Solutions Corp. Class C
1.2%
Haemonetics Corp.
1.2%
Sectors (% of Total Investments)
Industrials
23.0%
Health Care
18.7%
Information Technology
13.2%
Consumer Discretionary
10.9%
Financials
10.1%
Energy
6.4%
Real Estate
4.9%
Materials
3.5%
Communication Services
3.5%
Consumer Staples
3.2%
Utilities
1.0%
Domestic Equity
0.2% | |
| Updated Prospectus Web Address | https://www.massmutual.com/product-performance/variable-insurance-funds | |
| Class II | | |
| Shareholder Report [Line Items] | | |
| Fund Name | MML Small Company Value Fund | |
| Class Name | Class II | |
| No Trading Symbol Flag | true | |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about the MML Small Company Value Fund (the “Fund”) for the period of January 1, 2024 to June 30, 2024. | |
| Shareholder Report Annual or Semi-Annual | semi-annual shareholder report | |
| Additional Information [Text Block] | You can find additional information about the Fund at https://www.massmutual.com/product-performance/variable-insurance-funds . You can also request this information by contacting us at 1-888-309-3539 or by sending an email request to fundinfo massmutual.com . | |
| Additional Information Phone Number | 1-888-309-3539 | |
| Additional Information Email | fundinfo@massmutual.com | |
| Additional Information Website | https://www.massmutual.com/product-performance/variable-insurance-funds | |
| Expenses [Text Block] | WHAT WERE THE FUND COSTS FOR THE LAST SIX MONTHS? This example shows the expenses you would have paid over the past six months, based on a hypothetical $10,000 investment. This table reflects any applicable waivers or expense limitations.
Class Name
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
Class II
$48
0.96% | |
| Expenses Paid, Amount | $ 48 | |
| Expense Ratio, Percent | 0.96% | |
| Net Assets | $ 66,600,000 | |
| Holdings Count | $ / shares | 109 | |
| Investment Company Portfolio Turnover | 17% | |
| Additional Fund Statistics [Text Block] | WHAT ARE SOME KEY FUND STATISTICS? (as of June 30, 2024)
Total Net Assets (Millions)
$66.6
Total Number of Portfolio Holdings (includes derivative positions, if any)
109
Portfolio Turnover Rate
17% | |
| Holdings [Text Block] | Largest Holdings (% of Total Investments)
Old National Bancorp
2.6%
ChampionX Corp.
2.5%
Graphic Packaging Holding Co.
2.4%
FNB Corp.
2.3%
Timken Co.
2.2%
Axis Capital Holdings Ltd.
2.2%
Magnolia Oil & Gas Corp. Class A
2.1%
Brink’s Co.
2.1%
EVERTEC, Inc.
2.0%
Coherent Corp.
2.0%
Sectors (% of Total Investments)
Financials
30.6%
Industrials
18.2%
Consumer Discretionary
12.5%
Energy
12.5%
Information Technology
8.1%
Materials
4.3%
Real Estate
4.1%
Consumer Staples
3.6%
Health Care
2.6%
Communication Services
1.6%
Utilities
0.9% | |
| Updated Prospectus Web Address | https://www.massmutual.com/product-performance/variable-insurance-funds | |
| Service Class I | | |
| Shareholder Report [Line Items] | | |
| Fund Name | MML Small Company Value Fund | |
| Class Name | Service Class I | |
| No Trading Symbol Flag | true | |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about the MML Small Company Value Fund (the “Fund”) for the period of January 1, 2024 to June 30, 2024. | |
| Shareholder Report Annual or Semi-Annual | semi-annual shareholder report | |
| Additional Information [Text Block] | You can find additional information about the Fund at https://www.massmutual.com/product-performance/variable-insurance-funds . You can also request this information by contacting us at 1-888-309-3539 or by sending an email request to fundinfo massmutual.com . | |
| Additional Information Phone Number | 1-888-309-3539 | |
| Additional Information Email | fundinfo@massmutual.com | |
| Additional Information Website | https://www.massmutual.com/product-performance/variable-insurance-funds | |
| Expenses [Text Block] | WHAT WERE THE FUND COSTS FOR THE LAST SIX MONTHS? This example shows the expenses you would have paid over the past six months, based on a hypothetical $10,000 investment. This table reflects any applicable waivers or expense limitations.
Class Name
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
Service Class I
$60
1.21% | |
| Expenses Paid, Amount | $ 60 | |
| Expense Ratio, Percent | 1.21% | |
| Net Assets | $ 66,600,000 | |
| Holdings Count | $ / shares | 109 | |
| Investment Company Portfolio Turnover | 17% | |
| Additional Fund Statistics [Text Block] | WHAT ARE SOME KEY FUND STATISTICS? (as of June 30, 2024)
Total Net Assets (Millions)
$66.6
Total Number of Portfolio Holdings (includes derivative positions, if any)
109
Portfolio Turnover Rate
17% | |
| Holdings [Text Block] | Largest Holdings (% of Total Investments)
Old National Bancorp
2.6%
ChampionX Corp.
2.5%
Graphic Packaging Holding Co.
2.4%
FNB Corp.
2.3%
Timken Co.
2.2%
Axis Capital Holdings Ltd.
2.2%
Magnolia Oil & Gas Corp. Class A
2.1%
Brink’s Co.
2.1%
EVERTEC, Inc.
2.0%
Coherent Corp.
2.0%
Sectors (% of Total Investments)
Financials
30.6%
Industrials
18.2%
Consumer Discretionary
12.5%
Energy
12.5%
Information Technology
8.1%
Materials
4.3%
Real Estate
4.1%
Consumer Staples
3.6%
Health Care
2.6%
Communication Services
1.6%
Utilities
0.9% | |
| Updated Prospectus Web Address | https://www.massmutual.com/product-performance/variable-insurance-funds | |
| Initial Class | | |
| Shareholder Report [Line Items] | | |
| Fund Name | MML Small/Mid Cap Value Fund | |
| Class Name | Initial Class | |
| No Trading Symbol Flag | true | |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about the MML Small/Mid Cap Value Fund (the “Fund”) for the period of January 1, 2024 to June 30, 2024. | |
| Shareholder Report Annual or Semi-Annual | semi-annual shareholder report | |
| Additional Information [Text Block] | You can find additional information about the Fund at https://www.massmutual.com/product-performance/variable-insurance-funds . You can also request this information by contacting us at 1-888-309-3539 or by sending an email request to fundinfo massmutual.com . | |
| Additional Information Phone Number | 1-888-309-3539 | |
| Additional Information Email | fundinfo@massmutual.com | |
| Additional Information Website | https://www.massmutual.com/product-performance/variable-insurance-funds | |
| Expenses [Text Block] | WHAT WERE THE FUND COSTS FOR THE LAST SIX MONTHS? This example shows the expenses you would have paid over the past six months, based on a hypothetical $10,000 investment. This table reflects any applicable waivers or expense limitations.
Class Name
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
Initial Class
$41
0.82% | |
| Expenses Paid, Amount | $ 41 | |
| Expense Ratio, Percent | 0.82% | |
| Net Assets | $ 128,900,000 | |
| Holdings Count | $ / shares | 95 | |
| Investment Company Portfolio Turnover | 27% | |
| Additional Fund Statistics [Text Block] | WHAT ARE SOME KEY FUND STATISTICS? (as of June 30, 2024)
Total Net Assets (Millions)
$128.9
Total Number of Portfolio Holdings (includes derivative positions, if any)
95
Portfolio Turnover Rate
27% | |
| Holdings [Text Block] | Largest Holdings (% of Total Investments)
MasTec, Inc.
1.6%
Jones Lang LaSalle, Inc.
1.6%
First Citizens BancShares, Inc. Class A
1.5%
ArcBest Corp.
1.5%
ADT, Inc.
1.4%
Cameco Corp.
1.4%
Nexstar Media Group, Inc.
1.4%
BorgWarner, Inc.
1.4%
AutoNation, Inc.
1.4%
Fluor Corp.
1.4%
Sectors (% of Total Investments)
Industrials
21.2%
Financials
19.7%
Consumer Discretionary
16.7%
Information Technology
12.7%
Real Estate
7.1%
Energy
5.5%
Health Care
5.5%
Materials
3.3%
Utilities
2.8%
Communication Services
2.6%
Consumer Staples
2.3% | |
| Updated Prospectus Web Address | https://www.massmutual.com/product-performance/variable-insurance-funds | |
| Service Class | | |
| Shareholder Report [Line Items] | | |
| Fund Name | MML Small/Mid Cap Value Fund | |
| Class Name | Service Class | |
| No Trading Symbol Flag | true | |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about the MML Small/Mid Cap Value Fund (the “Fund”) for the period of January 1, 2024 to June 30, 2024. | |
| Shareholder Report Annual or Semi-Annual | semi-annual shareholder report | |
| Additional Information [Text Block] | You can find additional information about the Fund at https://www.massmutual.com/product-performance/variable-insurance-funds . You can also request this information by contacting us at 1-888-309-3539 or by sending an email request to fundinfo massmutual.com . | |
| Additional Information Phone Number | 1-888-309-3539 | |
| Additional Information Email | fundinfo@massmutual.com | |
| Additional Information Website | https://www.massmutual.com/product-performance/variable-insurance-funds | |
| Expenses [Text Block] | WHAT WERE THE FUND COSTS FOR THE LAST SIX MONTHS? This example shows the expenses you would have paid over the past six months, based on a hypothetical $10,000 investment. This table reflects any applicable waivers or expense limitations.
Class Name
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
Service Class
$54
1.07% | |
| Expenses Paid, Amount | $ 54 | |
| Expense Ratio, Percent | 1.07% | |
| Net Assets | $ 128,900,000 | |
| Holdings Count | $ / shares | 95 | |
| Investment Company Portfolio Turnover | 27% | |
| Additional Fund Statistics [Text Block] | WHAT ARE SOME KEY FUND STATISTICS? (as of June 30, 2024)
Total Net Assets (Millions)
$128.9
Total Number of Portfolio Holdings (includes derivative positions, if any)
95
Portfolio Turnover Rate
27% | |
| Holdings [Text Block] | Largest Holdings (% of Total Investments)
MasTec, Inc.
1.6%
Jones Lang LaSalle, Inc.
1.6%
First Citizens BancShares, Inc. Class A
1.5%
ArcBest Corp.
1.5%
ADT, Inc.
1.4%
Cameco Corp.
1.4%
Nexstar Media Group, Inc.
1.4%
BorgWarner, Inc.
1.4%
AutoNation, Inc.
1.4%
Fluor Corp.
1.4%
Sectors (% of Total Investments)
Industrials
21.2%
Financials
19.7%
Consumer Discretionary
16.7%
Information Technology
12.7%
Real Estate
7.1%
Energy
5.5%
Health Care
5.5%
Materials
3.3%
Utilities
2.8%
Communication Services
2.6%
Consumer Staples
2.3% | |
| Updated Prospectus Web Address | https://www.massmutual.com/product-performance/variable-insurance-funds | |
| Initial Class | | |
| Shareholder Report [Line Items] | | |
| Fund Name | MML Sustainable Equity Fund | |
| Class Name | Initial Class | |
| No Trading Symbol Flag | true | |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about the MML Sustainable Equity Fund (the “Fund”) for the period of January 1, 2024 to June 30, 2024. | |
| Shareholder Report Annual or Semi-Annual | semi-annual shareholder report | |
| Additional Information [Text Block] | You can find additional information about the Fund at https://www.massmutual.com/product-performance/variable-insurance-funds . You can also request this information by contacting us at 1-888-309-3539 or by sending an email request to fundinfo massmutual.com . | |
| Additional Information Phone Number | 1-888-309-3539 | |
| Additional Information Email | fundinfo@massmutual.com | |
| Additional Information Website | https://www.massmutual.com/product-performance/variable-insurance-funds | |
| Expenses [Text Block] | WHAT WERE THE FUND COSTS FOR THE LAST SIX MONTHS? This example shows the expenses you would have paid over the past six months, based on a hypothetical $10,000 investment. This table reflects any applicable waivers or expense limitations.
Class Name
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
Initial Class
$30
0.56% | |
| Expenses Paid, Amount | $ 30 | |
| Expense Ratio, Percent | 0.56% | |
| Net Assets | $ 148,600,000 | |
| Holdings Count | $ / shares | 105 | |
| Investment Company Portfolio Turnover | 14% | |
| Additional Fund Statistics [Text Block] | WHAT ARE SOME KEY FUND STATISTICS? (as of June 30, 2024)
Total Net Assets (Millions)
$148.6
Total Number of Portfolio Holdings (includes derivative positions, if any)
105
Portfolio Turnover Rate
14% | |
| Holdings [Text Block] | Largest Holdings (% of Total Investments)
Microsoft Corp.
8.7%
NVIDIA Corp.
7.0%
Apple, Inc.
6.4%
Alphabet, Inc. Class A
4.5%
Amazon.com, Inc.
3.6%
Meta Platforms, Inc.
2.4%
UnitedHealth Group, Inc.
1.8%
JP Morgan Chase & Co.
1.7%
Visa, Inc. Class A
1.6%
Home Depot, Inc.
1.5%
Sectors (% of Total Investments)
Information Technology
33.5%
Health Care
12.8%
Financials
12.7%
Consumer Discretionary
9.8%
Communication Services
8.5%
Industrials
8.2%
Consumer Staples
5.1%
Energy
3.4%
Materials
2.2%
Real Estate
2.0%
Utilities
1.5%
Equity Funds
0.1% | |
| Updated Prospectus Web Address | https://www.massmutual.com/product-performance/variable-insurance-funds | |
| Service Class | | |
| Shareholder Report [Line Items] | | |
| Fund Name | MML Sustainable Equity Fund | |
| Class Name | Service Class | |
| No Trading Symbol Flag | true | |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about the MML Sustainable Equity Fund (the “Fund”) for the period of January 1, 2024 to June 30, 2024. | |
| Shareholder Report Annual or Semi-Annual | semi-annual shareholder report | |
| Additional Information [Text Block] | You can find additional information about the Fund at https://www.massmutual.com/product-performance/variable-insurance-funds . You can also request this information by contacting us at 1-888-309-3539 or by sending an email request to fundinfo massmutual.com . | |
| Additional Information Phone Number | 1-888-309-3539 | |
| Additional Information Email | fundinfo@massmutual.com | |
| Additional Information Website | https://www.massmutual.com/product-performance/variable-insurance-funds | |
| Expenses [Text Block] | WHAT WERE THE FUND COSTS FOR THE LAST SIX MONTHS? This example shows the expenses you would have paid over the past six months, based on a hypothetical $10,000 investment. This table reflects any applicable waivers or expense limitations.
Class Name
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
Service Class
$43
0.81% | |
| Expenses Paid, Amount | $ 43 | |
| Expense Ratio, Percent | 0.81% | |
| Net Assets | $ 148,600,000 | |
| Holdings Count | $ / shares | 105 | |
| Investment Company Portfolio Turnover | 14% | |
| Additional Fund Statistics [Text Block] | WHAT ARE SOME KEY FUND STATISTICS? (as of June 30, 2024)
Total Net Assets (Millions)
$148.6
Total Number of Portfolio Holdings (includes derivative positions, if any)
105
Portfolio Turnover Rate
14% | |
| Holdings [Text Block] | Largest Holdings (% of Total Investments)
Microsoft Corp.
8.7%
NVIDIA Corp.
7.0%
Apple, Inc.
6.4%
Alphabet, Inc. Class A
4.5%
Amazon.com, Inc.
3.6%
Meta Platforms, Inc.
2.4%
UnitedHealth Group, Inc.
1.8%
JP Morgan Chase & Co.
1.7%
Visa, Inc. Class A
1.6%
Home Depot, Inc.
1.5%
Sectors (% of Total Investments)
Information Technology
33.5%
Health Care
12.8%
Financials
12.7%
Consumer Discretionary
9.8%
Communication Services
8.5%
Industrials
8.2%
Consumer Staples
5.1%
Energy
3.4%
Materials
2.2%
Real Estate
2.0%
Utilities
1.5%
Equity Funds
0.1% | |
| Updated Prospectus Web Address | https://www.massmutual.com/product-performance/variable-insurance-funds | |
| Class II | | |
| Shareholder Report [Line Items] | | |
| Fund Name | MML Total Return Bond Fund | |
| Class Name | Class II | |
| No Trading Symbol Flag | true | |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about the MML Total Return Bond Fund (the “Fund”) for the period of January 1, 2024 to June 30, 2024. | |
| Shareholder Report Annual or Semi-Annual | semi-annual shareholder report | |
| Additional Information [Text Block] | You can find additional information about the Fund at https://www.massmutual.com/product-performance/variable-insurance-funds . You can also request this information by contacting us at 1-888-309-3539 or by sending an email request to fundinfo massmutual.com . | |
| Additional Information Phone Number | 1-888-309-3539 | |
| Additional Information Email | fundinfo@massmutual.com | |
| Additional Information Website | https://www.massmutual.com/product-performance/variable-insurance-funds | |
| Expenses [Text Block] | WHAT WERE THE FUND COSTS FOR THE LAST SIX MONTHS? This example shows the expenses you would have paid over the past six months, based on a hypothetical $10,000 investment. This table reflects any applicable waivers or expense limitations.
Class Name
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
Class II
$31
0.63% | |
| Expenses Paid, Amount | $ 31 | |
| Expense Ratio, Percent | 0.63% | |
| Net Assets | $ 318,600,000 | |
| Holdings Count | $ / shares | 537 | |
| Investment Company Portfolio Turnover | 256% | |
| Additional Fund Statistics [Text Block] | WHAT ARE SOME KEY FUND STATISTICS? (as of June 30, 2024)
Total Net Assets (Millions)
$318.6
Total Number of Portfolio Holdings (includes derivative positions, if any)
537
Portfolio Turnover Rate
256% | |
| Holdings [Text Block] | Portfolio Characteristics (% of Total Investments)
U.S. Treasury Obligations
29.3%
U.S. Government Agency Obligations and Instrumentalities
27.4%
Non-U.S. Government Agency Obligations
13.0%
Corporate Debt
12.1%
Repurchase Agreement
10.8%
Investment of Cash Collateral from Securities Loaned
4.1%
U.S. Treasury Bill
1.5%
Bank Loans
1.0%
Municipal Obligations
0.5%
Sovereign Debt Obligations
0.4% | |
| Updated Prospectus Web Address | https://www.massmutual.com/product-performance/variable-insurance-funds | |
| Service Class I | | |
| Shareholder Report [Line Items] | | |
| Fund Name | MML Total Return Bond Fund | |
| Class Name | Service Class I | |
| No Trading Symbol Flag | true | |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about the MML Total Return Bond Fund (the “Fund”) for the period of January 1, 2024 to June 30, 2024. | |
| Shareholder Report Annual or Semi-Annual | semi-annual shareholder report | |
| Additional Information [Text Block] | You can find additional information about the Fund at https://www.massmutual.com/product-performance/variable-insurance-funds . You can also request this information by contacting us at 1-888-309-3539 or by sending an email request to fundinfo massmutual.com . | |
| Additional Information Phone Number | 1-888-309-3539 | |
| Additional Information Email | fundinfo@massmutual.com | |
| Additional Information Website | https://www.massmutual.com/product-performance/variable-insurance-funds | |
| Expenses [Text Block] | WHAT WERE THE FUND COSTS FOR THE LAST SIX MONTHS? This example shows the expenses you would have paid over the past six months, based on a hypothetical $10,000 investment. This table reflects any applicable waivers or expense limitations.
Class Name
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
Service Class I
$43
0.88% | |
| Expenses Paid, Amount | $ 43 | |
| Expense Ratio, Percent | 0.88% | |
| Net Assets | $ 318,600,000 | |
| Holdings Count | $ / shares | 537 | |
| Investment Company Portfolio Turnover | 256% | |
| Additional Fund Statistics [Text Block] | WHAT ARE SOME KEY FUND STATISTICS? (as of June 30, 2024)
Total Net Assets (Millions)
$318.6
Total Number of Portfolio Holdings (includes derivative positions, if any)
537
Portfolio Turnover Rate
256% | |
| Holdings [Text Block] | Portfolio Characteristics (% of Total Investments)
U.S. Treasury Obligations
29.3%
U.S. Government Agency Obligations and Instrumentalities
27.4%
Non-U.S. Government Agency Obligations
13.0%
Corporate Debt
12.1%
Repurchase Agreement
10.8%
Investment of Cash Collateral from Securities Loaned
4.1%
U.S. Treasury Bill
1.5%
Bank Loans
1.0%
Municipal Obligations
0.5%
Sovereign Debt Obligations
0.4% | |
| Updated Prospectus Web Address | https://www.massmutual.com/product-performance/variable-insurance-funds | |
|
[1]
1 The Fund is a feeder fund. The expenses shown in this table reflect the aggregate expenses of both the feeder fund and the master fund. |
