Shareholder Report
|
6 Months Ended |
12 Months Ended |
|
Mar. 31, 2026
USD ($)
Holding
|
Sep. 30, 2025 |
| Shareholder Report [Line Items] |
|
|
|
| Document Type |
|
N-CSRS
|
|
| Amendment Flag |
|
false
|
|
| Registrant Name |
|
CALVERT SOCIAL INVESTMENT FUND
|
|
| Entity Central Index Key |
|
0000356682
|
|
| Entity Investment Company Type |
|
N-1A
|
|
| Document Period End Date |
|
Mar. 31, 2026
|
|
| Shareholder Report Annual or Semi-Annual |
|
Semi-Annual Shareholder Report
|
|
| C000023754 |
|
|
|
| Shareholder Report [Line Items] |
|
|
|
| Fund Name |
|
Calvert Balanced Fund
|
|
| Class Name |
|
Class A
|
|
| Trading Symbol |
|
CSIFX
|
|
| Annual or Semi-Annual Statement [Text Block] |
|
This semi-annual shareholder report contains important information about the Calvert Balanced Fund for the period of October 1, 2025 to March 31, 2026.
|
|
| Additional Information [Text Block] |
|
You can find additional information about the Fund at www.eatonvance.com/calvert-fund-documents.php. You can also request this information by contacting us at 1-800-368-2745.
|
|
| Additional Information Phone Number |
|
1-800-368-2745
|
|
| Additional Information Website |
|
<span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 400; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left; text-align-last: auto; white-space-collapse: preserve-breaks;">www.eatonvance.com/calvert-fund-documents.php</span>
|
|
| Expenses [Text Block] |
|
What were the Fund costs for the last six months?(based on a hypothetical $10,000 investment)
Table Summary
Class Name |
Costs of a $10,000 investment |
Costs paid as a percentage of a $10,000 investment |
Class A |
$44 |
0.89%Footnote Reference1 |
| Footnote |
Description |
Footnote1 |
Annualized | |
|
| Expenses Paid, Amount |
|
$ 44
|
|
| Expense Ratio, Percent |
[1] |
0.89%
|
|
| AssetsNet |
|
$ 1,372,822,355
|
|
| Holdings Count | Holding |
|
606
|
|
| InvestmentCompanyPortfolioTurnover |
|
55.00%
|
|
| Additional Fund Statistics [Text Block] |
|
Table Summary
Total Net Assets |
$1,372,822,355 |
# of Portfolio Holdings |
606 |
Portfolio Turnover Rate |
55% | |
|
| Holdings [Text Block] |
|
Asset Allocation (% of total investments)
Table Summary
Value |
Value |
OtherFootnote Reference† |
1.8% |
Collateralized Mortgage Obligations |
1.4% |
Commercial Mortgage-Backed Securities |
3.1% |
Asset-Backed Securities |
4.4% |
U.S. Treasury Obligations |
6.4% |
Short-Term Investments |
6.9% |
U.S. Government Agency Mortgage-Backed Securities |
8.2% |
Corporate Bonds |
9.4% |
Common Stocks |
58.4% |
| Footnote |
Description |
Footnote† |
Investment types less than 1% each | |
|
| Largest Holdings [Text Block] |
|
Top Ten Holdings (% of total investments)Footnote Referencea
Table Summary
NVIDIA Corp. |
5.2% |
Alphabet, Inc., Class C |
4.5% |
Apple, Inc. |
3.8% |
Microsoft Corp. |
3.4% |
Uniform Mortgage-Backed Security, 5.000%, 30-Year, TBA |
3.0% |
Amazon.com, Inc. |
2.8% |
Broadcom, Inc. |
2.3% |
JPMorgan Chase & Co. |
1.8% |
Baker Hughes Co. |
1.8% |
Coca-Cola Co. |
1.7% |
Total |
30.3% |
| Footnote |
Description |
Footnotea |
Excluding cash equivalents | |
|
| Material Fund Change [Text Block] |
|
|
|
| Updated Prospectus Phone Number |
|
1-800-368-2745
|
|
| C000023756 |
|
|
|
| Shareholder Report [Line Items] |
|
|
|
| Fund Name |
|
Calvert Balanced Fund
|
|
| Class Name |
|
Class C
|
|
| Trading Symbol |
|
CSGCX
|
|
| Annual or Semi-Annual Statement [Text Block] |
|
This semi-annual shareholder report contains important information about the Calvert Balanced Fund for the period of October 1, 2025 to March 31, 2026.
|
|
| Additional Information [Text Block] |
|
You can find additional information about the Fund at www.eatonvance.com/calvert-fund-documents.php. You can also request this information by contacting us at 1-800-368-2745.
|
|
| Additional Information Phone Number |
|
1-800-368-2745
|
|
| Additional Information Website |
|
<span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 400; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left; text-align-last: auto; white-space-collapse: preserve-breaks;">www.eatonvance.com/calvert-fund-documents.php</span>
|
|
| Expenses [Text Block] |
|
What were the Fund costs for the last six months?(based on a hypothetical $10,000 investment)
Table Summary
Class Name |
Costs of a $10,000 investment |
Costs paid as a percentage of a $10,000 investment |
Class C |
$81 |
1.64%Footnote Reference1 |
| Footnote |
Description |
Footnote1 |
Annualized | |
|
| Expenses Paid, Amount |
|
$ 81
|
|
| Expense Ratio, Percent |
[2] |
1.64%
|
|
| AssetsNet |
|
$ 1,372,822,355
|
|
| Holdings Count | Holding |
|
606
|
|
| InvestmentCompanyPortfolioTurnover |
|
55.00%
|
|
| Additional Fund Statistics [Text Block] |
|
Table Summary
Total Net Assets |
$1,372,822,355 |
# of Portfolio Holdings |
606 |
Portfolio Turnover Rate |
55% | |
|
| Holdings [Text Block] |
|
Asset Allocation (% of total investments)
Table Summary
Value |
Value |
OtherFootnote Reference† |
1.8% |
Collateralized Mortgage Obligations |
1.4% |
Commercial Mortgage-Backed Securities |
3.1% |
Asset-Backed Securities |
4.4% |
U.S. Treasury Obligations |
6.4% |
Short-Term Investments |
6.9% |
U.S. Government Agency Mortgage-Backed Securities |
8.2% |
Corporate Bonds |
9.4% |
Common Stocks |
58.4% |
| Footnote |
Description |
Footnote† |
Investment types less than 1% each | |
|
| Largest Holdings [Text Block] |
|
Top Ten Holdings (% of total investments)Footnote Referencea
Table Summary
NVIDIA Corp. |
5.2% |
Alphabet, Inc., Class C |
4.5% |
Apple, Inc. |
3.8% |
Microsoft Corp. |
3.4% |
Uniform Mortgage-Backed Security, 5.000%, 30-Year, TBA |
3.0% |
Amazon.com, Inc. |
2.8% |
Broadcom, Inc. |
2.3% |
JPMorgan Chase & Co. |
1.8% |
Baker Hughes Co. |
1.8% |
Coca-Cola Co. |
1.7% |
Total |
30.3% |
| Footnote |
Description |
Footnotea |
Excluding cash equivalents | |
|
| Material Fund Change [Text Block] |
|
|
|
| Updated Prospectus Phone Number |
|
1-800-368-2745
|
|
| C000023757 |
|
|
|
| Shareholder Report [Line Items] |
|
|
|
| Fund Name |
|
Calvert Balanced Fund
|
|
| Class Name |
|
Class I
|
|
| Trading Symbol |
|
CBAIX
|
|
| Annual or Semi-Annual Statement [Text Block] |
|
This semi-annual shareholder report contains important information about the Calvert Balanced Fund for the period of October 1, 2025 to March 31, 2026.
|
|
| Additional Information [Text Block] |
|
You can find additional information about the Fund at www.eatonvance.com/calvert-fund-documents.php. You can also request this information by contacting us at 1-800-368-2745.
|
|
| Additional Information Phone Number |
|
1-800-368-2745
|
|
| Additional Information Website |
|
<span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 400; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left; text-align-last: auto; white-space-collapse: preserve-breaks;">www.eatonvance.com/calvert-fund-documents.php</span>
|
|
| Expenses [Text Block] |
|
What were the Fund costs for the last six months?(based on a hypothetical $10,000 investment)
Table Summary
Class Name |
Costs of a $10,000 investment |
Costs paid as a percentage of a $10,000 investment |
Class I |
$32 |
0.64%Footnote Reference1 |
| Footnote |
Description |
Footnote1 |
Annualized | |
|
| Expenses Paid, Amount |
|
$ 32
|
|
| Expense Ratio, Percent |
[3] |
0.64%
|
|
| AssetsNet |
|
$ 1,372,822,355
|
|
| Holdings Count | Holding |
|
606
|
|
| InvestmentCompanyPortfolioTurnover |
|
55.00%
|
|
| Additional Fund Statistics [Text Block] |
|
Table Summary
Total Net Assets |
$1,372,822,355 |
# of Portfolio Holdings |
606 |
Portfolio Turnover Rate |
55% | |
|
| Holdings [Text Block] |
|
Asset Allocation (% of total investments)
Table Summary
Value |
Value |
OtherFootnote Reference† |
1.8% |
Collateralized Mortgage Obligations |
1.4% |
Commercial Mortgage-Backed Securities |
3.1% |
Asset-Backed Securities |
4.4% |
U.S. Treasury Obligations |
6.4% |
Short-Term Investments |
6.9% |
U.S. Government Agency Mortgage-Backed Securities |
8.2% |
Corporate Bonds |
9.4% |
Common Stocks |
58.4% |
| Footnote |
Description |
Footnote† |
Investment types less than 1% each | |
|
| Largest Holdings [Text Block] |
|
Top Ten Holdings (% of total investments)Footnote Referencea
Table Summary
NVIDIA Corp. |
5.2% |
Alphabet, Inc., Class C |
4.5% |
Apple, Inc. |
3.8% |
Microsoft Corp. |
3.4% |
Uniform Mortgage-Backed Security, 5.000%, 30-Year, TBA |
3.0% |
Amazon.com, Inc. |
2.8% |
Broadcom, Inc. |
2.3% |
JPMorgan Chase & Co. |
1.8% |
Baker Hughes Co. |
1.8% |
Coca-Cola Co. |
1.7% |
Total |
30.3% |
| Footnote |
Description |
Footnotea |
Excluding cash equivalents | |
|
| Material Fund Change [Text Block] |
|
|
|
| Updated Prospectus Phone Number |
|
1-800-368-2745
|
|
| C000211115 |
|
|
|
| Shareholder Report [Line Items] |
|
|
|
| Fund Name |
|
Calvert Balanced Fund
|
|
| Class Name |
|
Class R6
|
|
| Trading Symbol |
|
CBARX
|
|
| Annual or Semi-Annual Statement [Text Block] |
|
This semi-annual shareholder report contains important information about the Calvert Balanced Fund for the period of October 1, 2025 to March 31, 2026.
|
|
| Additional Information [Text Block] |
|
You can find additional information about the Fund at www.eatonvance.com/calvert-fund-documents.php. You can also request this information by contacting us at 1-800-368-2745.
|
|
| Additional Information Phone Number |
|
1-800-368-2745
|
|
| Additional Information Website |
|
<span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 400; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left; text-align-last: auto; white-space-collapse: preserve-breaks;">www.eatonvance.com/calvert-fund-documents.php</span>
|
|
| Expenses [Text Block] |
|
What were the Fund costs for the last six months?(based on a hypothetical $10,000 investment)
Table Summary
Class Name |
Costs of a $10,000 investment |
Costs paid as a percentage of a $10,000 investment |
Class R6 |
$29 |
0.58%Footnote Reference1 |
| Footnote |
Description |
Footnote1 |
Annualized | |
|
| Expenses Paid, Amount |
|
$ 29
|
|
| Expense Ratio, Percent |
[4] |
0.58%
|
|
| AssetsNet |
|
$ 1,372,822,355
|
|
| Holdings Count | Holding |
|
606
|
|
| InvestmentCompanyPortfolioTurnover |
|
55.00%
|
|
| Additional Fund Statistics [Text Block] |
|
Table Summary
Total Net Assets |
$1,372,822,355 |
# of Portfolio Holdings |
606 |
Portfolio Turnover Rate |
55% | |
|
| Holdings [Text Block] |
|
Asset Allocation (% of total investments)
Table Summary
Value |
Value |
OtherFootnote Reference† |
1.8% |
Collateralized Mortgage Obligations |
1.4% |
Commercial Mortgage-Backed Securities |
3.1% |
Asset-Backed Securities |
4.4% |
U.S. Treasury Obligations |
6.4% |
Short-Term Investments |
6.9% |
U.S. Government Agency Mortgage-Backed Securities |
8.2% |
Corporate Bonds |
9.4% |
Common Stocks |
58.4% |
| Footnote |
Description |
Footnote† |
Investment types less than 1% each | |
|
| Largest Holdings [Text Block] |
|
Top Ten Holdings (% of total investments)Footnote Referencea
Table Summary
NVIDIA Corp. |
5.2% |
Alphabet, Inc., Class C |
4.5% |
Apple, Inc. |
3.8% |
Microsoft Corp. |
3.4% |
Uniform Mortgage-Backed Security, 5.000%, 30-Year, TBA |
3.0% |
Amazon.com, Inc. |
2.8% |
Broadcom, Inc. |
2.3% |
JPMorgan Chase & Co. |
1.8% |
Baker Hughes Co. |
1.8% |
Coca-Cola Co. |
1.7% |
Total |
30.3% |
| Footnote |
Description |
Footnotea |
Excluding cash equivalents | |
|
| Material Fund Change [Text Block] |
|
|
|
| Updated Prospectus Phone Number |
|
1-800-368-2745
|
|
| C000023758 |
|
|
|
| Shareholder Report [Line Items] |
|
|
|
| Fund Name |
|
Calvert Bond Fund
|
|
| Class Name |
|
Class A
|
|
| Trading Symbol |
|
CSIBX
|
|
| Annual or Semi-Annual Statement [Text Block] |
|
This semi-annual shareholder report contains important information about the Calvert Bond Fund for the period of October 1, 2025 to March 31, 2026.
|
|
| Additional Information [Text Block] |
|
You can find additional information about the Fund at www.eatonvance.com/calvert-fund-documents.php. You can also request this information by contacting us at 1-800-368-2745.
|
|
| Additional Information Phone Number |
|
1-800-368-2745
|
|
| Additional Information Website |
|
<span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 400; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left; text-align-last: auto; white-space-collapse: preserve-breaks;">www.eatonvance.com/calvert-fund-documents.php</span>
|
|
| Expenses [Text Block] |
|
What were the Fund costs for the last six months?(based on a hypothetical $10,000 investment)
Table Summary
Class Name |
Costs of a $10,000 investment |
Costs paid as a percentage of a $10,000 investment |
Class A |
$36 |
0.72%Footnote Reference1 |
| Footnote |
Description |
Footnote1 |
Annualized | |
|
| Expenses Paid, Amount |
|
$ 36
|
|
| Expense Ratio, Percent |
[5] |
0.72%
|
|
| AssetsNet |
|
$ 4,243,428,085
|
|
| Holdings Count | Holding |
|
482
|
|
| InvestmentCompanyPortfolioTurnover |
|
146.00%
|
|
| Additional Fund Statistics [Text Block] |
|
Table Summary
Total Net Assets |
$4,243,428,085 |
# of Portfolio Holdings |
482 |
Portfolio Turnover Rate |
146% | |
|
| Holdings [Text Block] |
|
Asset Allocation (% of total investments)
Table Summary
Value |
Value |
OtherFootnote Reference† |
3.0% |
Senior Floating-Rate Loans |
1.3% |
Collateralized Mortgage Obligations |
4.4% |
Commercial Mortgage-Backed Securities |
7.0% |
Asset-Backed Securities |
9.8% |
Short-Term Investments |
10.4% |
U.S. Treasury Obligations |
18.8% |
U.S. Government Agency Mortgage-Backed Securities |
20.9% |
Corporate Bonds |
24.4% |
| Footnote |
Description |
Footnote† |
Investment types less than 1% each | Credit Quality (% of net assets)Footnote Referencea
Table Summary
Value |
Value |
Cash & Equivalents |
(3.7%) |
Not Rated |
5.0% |
CCCFootnote Reference* |
0.0% |
B |
2.7% |
BB |
3.1% |
BBB |
20.2% |
A |
12.8% |
AA |
6.2% |
AAA |
53.7% |
| Footnote |
Description |
Footnotea |
Ratings are based on Moody’s Investors Service, Inc. (“Moody’s”), S&P Global Ratings (“S&P”) or Fitch Ratings (“Fitch”), or Kroll Bond Rating Agency, LLC (“Kroll”) for securitized debt instruments only (such as asset-backed and mortgage-backed securities). If securities are rated differently by the ratings agencies, the highest rating is applied. Moody's ratings are converted to the S&P, Fitch and Kroll scale with ratings ranging from AAA, being the highest, to D, being the lowest. Ratings of BBB or higher are considered to be investment-grade quality. Holdings designated as “Not Rated” (if any) are not rated by the national ratings agencies stated above. |
Footnote* |
Amount is less than 0.05%. | |
|
| Material Fund Change [Text Block] |
|
|
|
| Updated Prospectus Phone Number |
|
1-800-368-2745
|
|
| C000023760 |
|
|
|
| Shareholder Report [Line Items] |
|
|
|
| Fund Name |
|
Calvert Bond Fund
|
|
| Class Name |
|
Class C
|
|
| Trading Symbol |
|
CSBCX
|
|
| Annual or Semi-Annual Statement [Text Block] |
|
This semi-annual shareholder report contains important information about the Calvert Bond Fund for the period of October 1, 2025 to March 31, 2026.
|
|
| Additional Information [Text Block] |
|
You can find additional information about the Fund at www.eatonvance.com/calvert-fund-documents.php. You can also request this information by contacting us at 1-800-368-2745.
|
|
| Additional Information Phone Number |
|
1-800-368-2745
|
|
| Additional Information Website |
|
<span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 400; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left; text-align-last: auto; white-space-collapse: preserve-breaks;">www.eatonvance.com/calvert-fund-documents.php</span>
|
|
| Expenses [Text Block] |
|
What were the Fund costs for the last six months?(based on a hypothetical $10,000 investment)
Table Summary
Class Name |
Costs of a $10,000 investment |
Costs paid as a percentage of a $10,000 investment |
Class C |
$76 |
1.52%Footnote Reference1 |
| Footnote |
Description |
Footnote1 |
Annualized | |
|
| Expenses Paid, Amount |
|
$ 76
|
|
| Expense Ratio, Percent |
[6] |
1.52%
|
|
| AssetsNet |
|
$ 4,243,428,085
|
|
| Holdings Count | Holding |
|
482
|
|
| InvestmentCompanyPortfolioTurnover |
|
146.00%
|
|
| Additional Fund Statistics [Text Block] |
|
Table Summary
Total Net Assets |
$4,243,428,085 |
# of Portfolio Holdings |
482 |
Portfolio Turnover Rate |
146% | |
|
| Holdings [Text Block] |
|
Asset Allocation (% of total investments)
Table Summary
Value |
Value |
OtherFootnote Reference† |
3.0% |
Senior Floating-Rate Loans |
1.3% |
Collateralized Mortgage Obligations |
4.4% |
Commercial Mortgage-Backed Securities |
7.0% |
Asset-Backed Securities |
9.8% |
Short-Term Investments |
10.4% |
U.S. Treasury Obligations |
18.8% |
U.S. Government Agency Mortgage-Backed Securities |
20.9% |
Corporate Bonds |
24.4% |
| Footnote |
Description |
Footnote† |
Investment types less than 1% each | Credit Quality (% of net assets)Footnote Referencea
Table Summary
Value |
Value |
Cash & Equivalents |
(3.7%) |
Not Rated |
5.0% |
CCCFootnote Reference* |
0.0% |
B |
2.7% |
BB |
3.1% |
BBB |
20.2% |
A |
12.8% |
AA |
6.2% |
AAA |
53.7% |
| Footnote |
Description |
Footnotea |
Ratings are based on Moody’s Investors Service, Inc. (“Moody’s”), S&P Global Ratings (“S&P”) or Fitch Ratings (“Fitch”), or Kroll Bond Rating Agency, LLC (“Kroll”) for securitized debt instruments only (such as asset-backed and mortgage-backed securities). If securities are rated differently by the ratings agencies, the highest rating is applied. Moody's ratings are converted to the S&P, Fitch and Kroll scale with ratings ranging from AAA, being the highest, to D, being the lowest. Ratings of BBB or higher are considered to be investment-grade quality. Holdings designated as “Not Rated” (if any) are not rated by the national ratings agencies stated above. |
Footnote* |
Amount is less than 0.05%. | |
|
| Material Fund Change [Text Block] |
|
|
|
| Updated Prospectus Phone Number |
|
1-800-368-2745
|
|
| C000023761 |
|
|
|
| Shareholder Report [Line Items] |
|
|
|
| Fund Name |
|
Calvert Bond Fund
|
|
| Class Name |
|
Class I
|
|
| Trading Symbol |
|
CBDIX
|
|
| Annual or Semi-Annual Statement [Text Block] |
|
This semi-annual shareholder report contains important information about the Calvert Bond Fund for the period of October 1, 2025 to March 31, 2026.
|
|
| Additional Information [Text Block] |
|
You can find additional information about the Fund at www.eatonvance.com/calvert-fund-documents.php. You can also request this information by contacting us at 1-800-368-2745.
|
|
| Additional Information Phone Number |
|
1-800-368-2745
|
|
| Additional Information Website |
|
<span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 400; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left; text-align-last: auto; white-space-collapse: preserve-breaks;">www.eatonvance.com/calvert-fund-documents.php</span>
|
|
| Expenses [Text Block] |
|
What were the Fund costs for the last six months?(based on a hypothetical $10,000 investment)
Table Summary
Class Name |
Costs of a $10,000 investment |
Costs paid as a percentage of a $10,000 investment |
Class I |
$26 |
0.52%Footnote Reference1 |
| Footnote |
Description |
Footnote1 |
Annualized | |
|
| Expenses Paid, Amount |
|
$ 26
|
|
| Expense Ratio, Percent |
[7] |
0.52%
|
|
| AssetsNet |
|
$ 4,243,428,085
|
|
| Holdings Count | Holding |
|
482
|
|
| InvestmentCompanyPortfolioTurnover |
|
146.00%
|
|
| Additional Fund Statistics [Text Block] |
|
Table Summary
Total Net Assets |
$4,243,428,085 |
# of Portfolio Holdings |
482 |
Portfolio Turnover Rate |
146% | |
|
| Holdings [Text Block] |
|
Asset Allocation (% of total investments)
Table Summary
Value |
Value |
OtherFootnote Reference† |
3.0% |
Senior Floating-Rate Loans |
1.3% |
Collateralized Mortgage Obligations |
4.4% |
Commercial Mortgage-Backed Securities |
7.0% |
Asset-Backed Securities |
9.8% |
Short-Term Investments |
10.4% |
U.S. Treasury Obligations |
18.8% |
U.S. Government Agency Mortgage-Backed Securities |
20.9% |
Corporate Bonds |
24.4% |
| Footnote |
Description |
Footnote† |
Investment types less than 1% each | Credit Quality (% of net assets)Footnote Referencea
Table Summary
Value |
Value |
Cash & Equivalents |
(3.7%) |
Not Rated |
5.0% |
CCCFootnote Reference* |
0.0% |
B |
2.7% |
BB |
3.1% |
BBB |
20.2% |
A |
12.8% |
AA |
6.2% |
AAA |
53.7% |
| Footnote |
Description |
Footnotea |
Ratings are based on Moody’s Investors Service, Inc. (“Moody’s”), S&P Global Ratings (“S&P”) or Fitch Ratings (“Fitch”), or Kroll Bond Rating Agency, LLC (“Kroll”) for securitized debt instruments only (such as asset-backed and mortgage-backed securities). If securities are rated differently by the ratings agencies, the highest rating is applied. Moody's ratings are converted to the S&P, Fitch and Kroll scale with ratings ranging from AAA, being the highest, to D, being the lowest. Ratings of BBB or higher are considered to be investment-grade quality. Holdings designated as “Not Rated” (if any) are not rated by the national ratings agencies stated above. |
Footnote* |
Amount is less than 0.05%. | |
|
| Material Fund Change [Text Block] |
|
|
|
| Updated Prospectus Phone Number |
|
1-800-368-2745
|
|
| C000195930 |
|
|
|
| Shareholder Report [Line Items] |
|
|
|
| Fund Name |
|
Calvert Bond Fund
|
|
| Class Name |
|
Class R6
|
|
| Trading Symbol |
|
CBORX
|
|
| Annual or Semi-Annual Statement [Text Block] |
|
This semi-annual shareholder report contains important information about the Calvert Bond Fund for the period of October 1, 2025 to March 31, 2026.
|
|
| Additional Information [Text Block] |
|
You can find additional information about the Fund at www.eatonvance.com/calvert-fund-documents.php. You can also request this information by contacting us at 1-800-368-2745.
|
|
| Additional Information Phone Number |
|
1-800-368-2745
|
|
| Additional Information Website |
|
<span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 400; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left; text-align-last: auto; white-space-collapse: preserve-breaks;">www.eatonvance.com/calvert-fund-documents.php</span>
|
|
| Expenses [Text Block] |
|
What were the Fund costs for the last six months?(based on a hypothetical $10,000 investment)
Table Summary
Class Name |
Costs of a $10,000 investment |
Costs paid as a percentage of a $10,000 investment |
Class R6 |
$23 |
0.45%Footnote Reference1 |
| Footnote |
Description |
Footnote1 |
Annualized | |
|
| Expenses Paid, Amount |
|
$ 23
|
|
| Expense Ratio, Percent |
[8] |
0.45%
|
|
| AssetsNet |
|
$ 4,243,428,085
|
|
| Holdings Count | Holding |
|
482
|
|
| InvestmentCompanyPortfolioTurnover |
|
146.00%
|
|
| Additional Fund Statistics [Text Block] |
|
Table Summary
Total Net Assets |
$4,243,428,085 |
# of Portfolio Holdings |
482 |
Portfolio Turnover Rate |
146% | |
|
| Holdings [Text Block] |
|
Asset Allocation (% of total investments)
Table Summary
Value |
Value |
OtherFootnote Reference† |
3.0% |
Senior Floating-Rate Loans |
1.3% |
Collateralized Mortgage Obligations |
4.4% |
Commercial Mortgage-Backed Securities |
7.0% |
Asset-Backed Securities |
9.8% |
Short-Term Investments |
10.4% |
U.S. Treasury Obligations |
18.8% |
U.S. Government Agency Mortgage-Backed Securities |
20.9% |
Corporate Bonds |
24.4% |
| Footnote |
Description |
Footnote† |
Investment types less than 1% each | Credit Quality (% of net assets)Footnote Referencea
Table Summary
Value |
Value |
Cash & Equivalents |
(3.7%) |
Not Rated |
5.0% |
CCCFootnote Reference* |
0.0% |
B |
2.7% |
BB |
3.1% |
BBB |
20.2% |
A |
12.8% |
AA |
6.2% |
AAA |
53.7% |
| Footnote |
Description |
Footnotea |
Ratings are based on Moody’s Investors Service, Inc. (“Moody’s”), S&P Global Ratings (“S&P”) or Fitch Ratings (“Fitch”), or Kroll Bond Rating Agency, LLC (“Kroll”) for securitized debt instruments only (such as asset-backed and mortgage-backed securities). If securities are rated differently by the ratings agencies, the highest rating is applied. Moody's ratings are converted to the S&P, Fitch and Kroll scale with ratings ranging from AAA, being the highest, to D, being the lowest. Ratings of BBB or higher are considered to be investment-grade quality. Holdings designated as “Not Rated” (if any) are not rated by the national ratings agencies stated above. |
Footnote* |
Amount is less than 0.05%. | |
|
| Material Fund Change [Text Block] |
|
|
|
| Updated Prospectus Phone Number |
|
1-800-368-2745
|
|
| C000023770 |
|
|
|
| Shareholder Report [Line Items] |
|
|
|
| Fund Name |
|
Calvert Conservative Allocation Fund
|
|
| Class Name |
|
Class A
|
|
| Trading Symbol |
|
CCLAX
|
|
| Annual or Semi-Annual Statement [Text Block] |
|
This semi-annual shareholder report contains important information about the Calvert Conservative Allocation Fund for the period of October 1, 2025 to March 31, 2026.
|
|
| Additional Information [Text Block] |
|
You can find additional information about the Fund at www.eatonvance.com/calvert-fund-documents.php. You can also request this information by contacting us at 1-800-368-2745.
|
|
| Additional Information Phone Number |
|
1-800-368-2745
|
|
| Additional Information Website |
|
<span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 400; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left; text-align-last: auto; white-space-collapse: preserve-breaks;">www.eatonvance.com/calvert-fund-documents.php</span>
|
|
| Expenses [Text Block] |
|
What were the Fund costs for the last six months?(based on a hypothetical $10,000 investment)
Table Summary
Class Name |
Costs of a $10,000 investment |
Costs paid as a percentage of a $10,000 investment |
Class A |
$22 |
0.45%Footnote Reference1 |
| Footnote |
Description |
Footnote1 |
Annualized | |
|
| Expenses Paid, Amount |
|
$ 22
|
|
| Expense Ratio, Percent |
[9] |
0.45%
|
|
| AssetsNet |
|
$ 219,615,391
|
|
| Holdings Count | Holding |
|
22
|
|
| InvestmentCompanyPortfolioTurnover |
|
14.00%
|
|
| Additional Fund Statistics [Text Block] |
|
Table Summary
Total Net Assets |
$219,615,391 |
# of Portfolio Holdings |
22 |
Portfolio Turnover Rate |
14% | |
|
| Holdings [Text Block] |
|
Asset Allocation (% of total investments)
Table Summary
Value |
Value |
Short-Term Investments |
0.8% |
International and Global Equity Funds |
9.1% |
Domestic Equity Funds |
26.1% |
Income Funds |
64.0% | |
|
| Largest Holdings [Text Block] |
|
Top Ten Holdings (% of total investments)Footnote Referencea
Table Summary
Calvert Bond Fund, Class R6 |
27.0% |
Calvert Core Bond Fund, Class I |
18.1% |
Calvert U.S. Large-Cap Growth Responsible Index Fund, Class R6 |
9.2% |
Calvert U.S. Large-Cap Core Responsible Index Fund, Class R6 |
9.0% |
Calvert Mortgage Access Fund, Class I |
7.1% |
Calvert Flexible Bond Fund, Class R6 |
3.9% |
Calvert International Responsible Index Fund, Class R6 |
3.5% |
Calvert Floating-Rate Advantage Fund, Class R6 |
3.5% |
Calvert US Large-Cap Value Responsible Index Fund, Class R6 |
3.4% |
Calvert High Yield Bond Fund, Class R6 |
3.4% |
Total |
88.1% |
| Footnote |
Description |
Footnotea |
Excluding cash equivalents | |
|
| Material Fund Change [Text Block] |
|
|
|
| Updated Prospectus Phone Number |
|
1-800-368-2745
|
|
| C000023771 |
|
|
|
| Shareholder Report [Line Items] |
|
|
|
| Fund Name |
|
Calvert Conservative Allocation Fund
|
|
| Class Name |
|
Class C
|
|
| Trading Symbol |
|
CALCX
|
|
| Annual or Semi-Annual Statement [Text Block] |
|
This semi-annual shareholder report contains important information about the Calvert Conservative Allocation Fund for the period of October 1, 2025 to March 31, 2026.
|
|
| Additional Information [Text Block] |
|
You can find additional information about the Fund at www.eatonvance.com/calvert-fund-documents.php. You can also request this information by contacting us at 1-800-368-2745.
|
|
| Additional Information Phone Number |
|
1-800-368-2745
|
|
| Additional Information Website |
|
<span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 400; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left; text-align-last: auto; white-space-collapse: preserve-breaks;">www.eatonvance.com/calvert-fund-documents.php</span>
|
|
| Expenses [Text Block] |
|
What were the Fund costs for the last six months?(based on a hypothetical $10,000 investment)
Table Summary
Class Name |
Costs of a $10,000 investment |
Costs paid as a percentage of a $10,000 investment |
Class C |
$60 |
1.20%Footnote Reference1 |
| Footnote |
Description |
Footnote1 |
Annualized | |
|
| Expenses Paid, Amount |
|
$ 60
|
|
| Expense Ratio, Percent |
[10] |
1.20%
|
|
| AssetsNet |
|
$ 219,615,391
|
|
| Holdings Count | Holding |
|
22
|
|
| InvestmentCompanyPortfolioTurnover |
|
14.00%
|
|
| Additional Fund Statistics [Text Block] |
|
Table Summary
Total Net Assets |
$219,615,391 |
# of Portfolio Holdings |
22 |
Portfolio Turnover Rate |
14% | |
|
| Holdings [Text Block] |
|
Asset Allocation (% of total investments)
Table Summary
Value |
Value |
Short-Term Investments |
0.8% |
International and Global Equity Funds |
9.1% |
Domestic Equity Funds |
26.1% |
Income Funds |
64.0% | |
|
| Largest Holdings [Text Block] |
|
Top Ten Holdings (% of total investments)Footnote Referencea
Table Summary
Calvert Bond Fund, Class R6 |
27.0% |
Calvert Core Bond Fund, Class I |
18.1% |
Calvert U.S. Large-Cap Growth Responsible Index Fund, Class R6 |
9.2% |
Calvert U.S. Large-Cap Core Responsible Index Fund, Class R6 |
9.0% |
Calvert Mortgage Access Fund, Class I |
7.1% |
Calvert Flexible Bond Fund, Class R6 |
3.9% |
Calvert International Responsible Index Fund, Class R6 |
3.5% |
Calvert Floating-Rate Advantage Fund, Class R6 |
3.5% |
Calvert US Large-Cap Value Responsible Index Fund, Class R6 |
3.4% |
Calvert High Yield Bond Fund, Class R6 |
3.4% |
Total |
88.1% |
| Footnote |
Description |
Footnotea |
Excluding cash equivalents | |
|
| Material Fund Change [Text Block] |
|
|
|
| Updated Prospectus Phone Number |
|
1-800-368-2745
|
|
| C000170082 |
|
|
|
| Shareholder Report [Line Items] |
|
|
|
| Fund Name |
|
Calvert Conservative Allocation Fund
|
|
| Class Name |
|
Class I
|
|
| Trading Symbol |
|
CFAIX
|
|
| Annual or Semi-Annual Statement [Text Block] |
|
This semi-annual shareholder report contains important information about the Calvert Conservative Allocation Fund for the period of October 1, 2025 to March 31, 2026.
|
|
| Additional Information [Text Block] |
|
You can find additional information about the Fund at www.eatonvance.com/calvert-fund-documents.php. You can also request this information by contacting us at 1-800-368-2745.
|
|
| Additional Information Phone Number |
|
1-800-368-2745
|
|
| Additional Information Website |
|
<span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 400; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left; text-align-last: auto; white-space-collapse: preserve-breaks;">www.eatonvance.com/calvert-fund-documents.php</span>
|
|
| Expenses [Text Block] |
|
What were the Fund costs for the last six months?(based on a hypothetical $10,000 investment)
Table Summary
Class Name |
Costs of a $10,000 investment |
Costs paid as a percentage of a $10,000 investment |
Class I |
$10 |
0.20%Footnote Reference1 |
| Footnote |
Description |
Footnote1 |
Annualized | |
|
| Expenses Paid, Amount |
|
$ 10
|
|
| Expense Ratio, Percent |
[11] |
0.20%
|
|
| AssetsNet |
|
$ 219,615,391
|
|
| Holdings Count | Holding |
|
22
|
|
| InvestmentCompanyPortfolioTurnover |
|
14.00%
|
|
| Additional Fund Statistics [Text Block] |
|
Table Summary
Total Net Assets |
$219,615,391 |
# of Portfolio Holdings |
22 |
Portfolio Turnover Rate |
14% | |
|
| Holdings [Text Block] |
|
Asset Allocation (% of total investments)
Table Summary
Value |
Value |
Short-Term Investments |
0.8% |
International and Global Equity Funds |
9.1% |
Domestic Equity Funds |
26.1% |
Income Funds |
64.0% | |
|
| Largest Holdings [Text Block] |
|
Top Ten Holdings (% of total investments)Footnote Referencea
Table Summary
Calvert Bond Fund, Class R6 |
27.0% |
Calvert Core Bond Fund, Class I |
18.1% |
Calvert U.S. Large-Cap Growth Responsible Index Fund, Class R6 |
9.2% |
Calvert U.S. Large-Cap Core Responsible Index Fund, Class R6 |
9.0% |
Calvert Mortgage Access Fund, Class I |
7.1% |
Calvert Flexible Bond Fund, Class R6 |
3.9% |
Calvert International Responsible Index Fund, Class R6 |
3.5% |
Calvert Floating-Rate Advantage Fund, Class R6 |
3.5% |
Calvert US Large-Cap Value Responsible Index Fund, Class R6 |
3.4% |
Calvert High Yield Bond Fund, Class R6 |
3.4% |
Total |
88.1% |
| Footnote |
Description |
Footnotea |
Excluding cash equivalents | |
|
| Material Fund Change [Text Block] |
|
|
|
| Updated Prospectus Phone Number |
|
1-800-368-2745
|
|
| C000235278 |
|
|
|
| Shareholder Report [Line Items] |
|
|
|
| Fund Name |
|
Calvert Conservative Allocation Fund
|
|
| Class Name |
|
Class R6
|
|
| Trading Symbol |
|
CAARX
|
|
| Annual or Semi-Annual Statement [Text Block] |
|
This semi-annual shareholder report contains important information about the Calvert Conservative Allocation Fund for the period of October 1, 2025 to March 31, 2026.
|
|
| Additional Information [Text Block] |
|
You can find additional information about the Fund at www.eatonvance.com/calvert-fund-documents.php. You can also request this information by contacting us at 1-800-368-2745.
|
|
| Additional Information Phone Number |
|
1-800-368-2745
|
|
| Additional Information Website |
|
<span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 400; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left; text-align-last: auto; white-space-collapse: preserve-breaks;">www.eatonvance.com/calvert-fund-documents.php</span>
|
|
| Expenses [Text Block] |
|
What were the Fund costs for the last six months?(based on a hypothetical $10,000 investment)
Table Summary
Class Name |
Costs of a $10,000 investment |
Costs paid as a percentage of a $10,000 investment |
Class R6 |
$6 |
0.12%Footnote Reference1 |
| Footnote |
Description |
Footnote1 |
Annualized | |
|
| Expenses Paid, Amount |
|
$ 6
|
|
| Expense Ratio, Percent |
[12] |
0.12%
|
|
| AssetsNet |
|
$ 219,615,391
|
|
| Holdings Count | Holding |
|
22
|
|
| InvestmentCompanyPortfolioTurnover |
|
14.00%
|
|
| Additional Fund Statistics [Text Block] |
|
Table Summary
Total Net Assets |
$219,615,391 |
# of Portfolio Holdings |
22 |
Portfolio Turnover Rate |
14% | |
|
| Holdings [Text Block] |
|
Asset Allocation (% of total investments)
Table Summary
Value |
Value |
Short-Term Investments |
0.8% |
International and Global Equity Funds |
9.1% |
Domestic Equity Funds |
26.1% |
Income Funds |
64.0% | |
|
| Largest Holdings [Text Block] |
|
Top Ten Holdings (% of total investments)Footnote Referencea
Table Summary
Calvert Bond Fund, Class R6 |
27.0% |
Calvert Core Bond Fund, Class I |
18.1% |
Calvert U.S. Large-Cap Growth Responsible Index Fund, Class R6 |
9.2% |
Calvert U.S. Large-Cap Core Responsible Index Fund, Class R6 |
9.0% |
Calvert Mortgage Access Fund, Class I |
7.1% |
Calvert Flexible Bond Fund, Class R6 |
3.9% |
Calvert International Responsible Index Fund, Class R6 |
3.5% |
Calvert Floating-Rate Advantage Fund, Class R6 |
3.5% |
Calvert US Large-Cap Value Responsible Index Fund, Class R6 |
3.4% |
Calvert High Yield Bond Fund, Class R6 |
3.4% |
Total |
88.1% |
| Footnote |
Description |
Footnotea |
Excluding cash equivalents | |
|
| Material Fund Change [Text Block] |
|
|
|
| Updated Prospectus Phone Number |
|
1-800-368-2745
|
|
| C000023762 |
|
|
|
| Shareholder Report [Line Items] |
|
|
|
| Fund Name |
|
Calvert Equity Fund
|
|
| Class Name |
|
Class A
|
|
| Trading Symbol |
|
CSIEX
|
|
| Annual or Semi-Annual Statement [Text Block] |
|
This semi-annual shareholder report contains important information about the Calvert Equity Fund for the period of October 1, 2025 to March 31, 2026.
|
|
| Additional Information [Text Block] |
|
You can find additional information about the Fund at www.eatonvance.com/calvert-fund-documents.php. You can also request this information by contacting us at 1-800-368-2745.
|
|
| Additional Information Phone Number |
|
1-800-368-2745
|
|
| Additional Information Website |
|
<span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 400; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left; text-align-last: auto; white-space-collapse: preserve-breaks;">www.eatonvance.com/calvert-fund-documents.php</span>
|
|
| Expenses [Text Block] |
|
What were the Fund costs for the last six months?(based on a hypothetical $10,000 investment)
Table Summary
Class Name |
Costs of a $10,000 investment |
Costs paid as a percentage of a $10,000 investment |
Class A |
$44 |
0.92%Footnote Reference1 |
| Footnote |
Description |
Footnote1 |
Annualized | |
|
| Expenses Paid, Amount |
|
$ 44
|
|
| Expense Ratio, Percent |
[13] |
0.92%
|
|
| AssetsNet |
|
$ 3,785,928,732
|
|
| Holdings Count | Holding |
|
67
|
|
| InvestmentCompanyPortfolioTurnover |
|
11.00%
|
|
| Additional Fund Statistics [Text Block] |
|
Table Summary
Total Net Assets |
$3,785,928,732 |
# of Portfolio Holdings |
67 |
Portfolio Turnover Rate |
11% | |
|
| Holdings [Text Block] |
|
Sector Allocation (% of total investments)
Table Summary
Value |
Value |
Venture Capital |
0.5% |
Consumer Staples |
2.0% |
Real Estate |
3.1% |
Short-Term Investments |
3.4% |
Communication Services |
5.4% |
Consumer Discretionary |
6.5% |
Materials |
8.0% |
Industrials |
13.7% |
Information Technology |
14.5% |
Financials |
20.4% |
Health Care |
22.5% | |
|
| Largest Holdings [Text Block] |
|
Top Ten Holdings (% of total investments)Footnote Referencea
Table Summary
Mastercard, Inc., Class A |
4.8% |
Thermo Fisher Scientific, Inc. |
4.7% |
Visa, Inc., Class A |
4.6% |
Verisk Analytics, Inc. |
4.5% |
Alphabet, Inc., Class C |
4.5% |
Danaher Corp. |
4.4% |
TJX Cos., Inc. |
4.3% |
VeriSign, Inc. |
4.2% |
Zoetis, Inc. |
4.1% |
Microsoft Corp. |
3.7% |
Total |
43.8% |
| Footnote |
Description |
Footnotea |
Excluding cash equivalents | |
|
| Material Fund Change [Text Block] |
|
|
|
| Updated Prospectus Phone Number |
|
1-800-368-2745
|
|
| C000023764 |
|
|
|
| Shareholder Report [Line Items] |
|
|
|
| Fund Name |
|
Calvert Equity Fund
|
|
| Class Name |
|
Class C
|
|
| Trading Symbol |
|
CSECX
|
|
| Annual or Semi-Annual Statement [Text Block] |
|
This semi-annual shareholder report contains important information about the Calvert Equity Fund for the period of October 1, 2025 to March 31, 2026.
|
|
| Additional Information [Text Block] |
|
You can find additional information about the Fund at www.eatonvance.com/calvert-fund-documents.php. You can also request this information by contacting us at 1-800-368-2745.
|
|
| Additional Information Phone Number |
|
1-800-368-2745
|
|
| Additional Information Website |
|
<span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 400; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left; text-align-last: auto; white-space-collapse: preserve-breaks;">www.eatonvance.com/calvert-fund-documents.php</span>
|
|
| Expenses [Text Block] |
|
What were the Fund costs for the last six months?(based on a hypothetical $10,000 investment)
Table Summary
Class Name |
Costs of a $10,000 investment |
Costs paid as a percentage of a $10,000 investment |
Class C |
$79 |
1.67%Footnote Reference1 |
| Footnote |
Description |
Footnote1 |
Annualized | |
|
| Expenses Paid, Amount |
|
$ 79
|
|
| Expense Ratio, Percent |
[14] |
1.67%
|
|
| AssetsNet |
|
$ 3,785,928,732
|
|
| Holdings Count | Holding |
|
67
|
|
| InvestmentCompanyPortfolioTurnover |
|
11.00%
|
|
| Additional Fund Statistics [Text Block] |
|
Table Summary
Total Net Assets |
$3,785,928,732 |
# of Portfolio Holdings |
67 |
Portfolio Turnover Rate |
11% | |
|
| Holdings [Text Block] |
|
Sector Allocation (% of total investments)
Table Summary
Value |
Value |
Venture Capital |
0.5% |
Consumer Staples |
2.0% |
Real Estate |
3.1% |
Short-Term Investments |
3.4% |
Communication Services |
5.4% |
Consumer Discretionary |
6.5% |
Materials |
8.0% |
Industrials |
13.7% |
Information Technology |
14.5% |
Financials |
20.4% |
Health Care |
22.5% | |
|
| Largest Holdings [Text Block] |
|
Top Ten Holdings (% of total investments)Footnote Referencea
Table Summary
Mastercard, Inc., Class A |
4.8% |
Thermo Fisher Scientific, Inc. |
4.7% |
Visa, Inc., Class A |
4.6% |
Verisk Analytics, Inc. |
4.5% |
Alphabet, Inc., Class C |
4.5% |
Danaher Corp. |
4.4% |
TJX Cos., Inc. |
4.3% |
VeriSign, Inc. |
4.2% |
Zoetis, Inc. |
4.1% |
Microsoft Corp. |
3.7% |
Total |
43.8% |
| Footnote |
Description |
Footnotea |
Excluding cash equivalents | |
|
| Material Fund Change [Text Block] |
|
|
|
| Updated Prospectus Phone Number |
|
1-800-368-2745
|
|
| C000023765 |
|
|
|
| Shareholder Report [Line Items] |
|
|
|
| Fund Name |
|
Calvert Equity Fund
|
|
| Class Name |
|
Class I
|
|
| Trading Symbol |
|
CEYIX
|
|
| Annual or Semi-Annual Statement [Text Block] |
|
This semi-annual shareholder report contains important information about the Calvert Equity Fund for the period of October 1, 2025 to March 31, 2026.
|
|
| Additional Information [Text Block] |
|
You can find additional information about the Fund at www.eatonvance.com/calvert-fund-documents.php. You can also request this information by contacting us at 1-800-368-2745.
|
|
| Additional Information Phone Number |
|
1-800-368-2745
|
|
| Additional Information Website |
|
<span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 400; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left; text-align-last: auto; white-space-collapse: preserve-breaks;">www.eatonvance.com/calvert-fund-documents.php</span>
|
|
| Expenses [Text Block] |
|
What were the Fund costs for the last six months?(based on a hypothetical $10,000 investment)
Table Summary
Class Name |
Costs of a $10,000 investment |
Costs paid as a percentage of a $10,000 investment |
Class I |
$32 |
0.67%Footnote Reference1 |
| Footnote |
Description |
Footnote1 |
Annualized | |
|
| Expenses Paid, Amount |
|
$ 32
|
|
| Expense Ratio, Percent |
[15] |
0.67%
|
|
| AssetsNet |
|
$ 3,785,928,732
|
|
| Holdings Count | Holding |
|
67
|
|
| InvestmentCompanyPortfolioTurnover |
|
11.00%
|
|
| Additional Fund Statistics [Text Block] |
|
Table Summary
Total Net Assets |
$3,785,928,732 |
# of Portfolio Holdings |
67 |
Portfolio Turnover Rate |
11% | |
|
| Holdings [Text Block] |
|
Sector Allocation (% of total investments)
Table Summary
Value |
Value |
Venture Capital |
0.5% |
Consumer Staples |
2.0% |
Real Estate |
3.1% |
Short-Term Investments |
3.4% |
Communication Services |
5.4% |
Consumer Discretionary |
6.5% |
Materials |
8.0% |
Industrials |
13.7% |
Information Technology |
14.5% |
Financials |
20.4% |
Health Care |
22.5% | |
|
| Largest Holdings [Text Block] |
|
Top Ten Holdings (% of total investments)Footnote Referencea
Table Summary
Mastercard, Inc., Class A |
4.8% |
Thermo Fisher Scientific, Inc. |
4.7% |
Visa, Inc., Class A |
4.6% |
Verisk Analytics, Inc. |
4.5% |
Alphabet, Inc., Class C |
4.5% |
Danaher Corp. |
4.4% |
TJX Cos., Inc. |
4.3% |
VeriSign, Inc. |
4.2% |
Zoetis, Inc. |
4.1% |
Microsoft Corp. |
3.7% |
Total |
43.8% |
| Footnote |
Description |
Footnotea |
Excluding cash equivalents | |
|
| Material Fund Change [Text Block] |
|
|
|
| Updated Prospectus Phone Number |
|
1-800-368-2745
|
|
| C000195931 |
|
|
|
| Shareholder Report [Line Items] |
|
|
|
| Fund Name |
|
Calvert Equity Fund
|
|
| Class Name |
|
Class R6
|
|
| Trading Symbol |
|
CEYRX
|
|
| Annual or Semi-Annual Statement [Text Block] |
|
This semi-annual shareholder report contains important information about the Calvert Equity Fund for the period of October 1, 2025 to March 31, 2026.
|
|
| Additional Information [Text Block] |
|
You can find additional information about the Fund at www.eatonvance.com/calvert-fund-documents.php. You can also request this information by contacting us at 1-800-368-2745.
|
|
| Additional Information Phone Number |
|
1-800-368-2745
|
|
| Additional Information Website |
|
<span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 400; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left; text-align-last: auto; white-space-collapse: preserve-breaks;">www.eatonvance.com/calvert-fund-documents.php</span>
|
|
| Expenses [Text Block] |
|
What were the Fund costs for the last six months?(based on a hypothetical $10,000 investment)
Table Summary
Class Name |
Costs of a $10,000 investment |
Costs paid as a percentage of a $10,000 investment |
Class R6 |
$29 |
0.61%Footnote Reference1 |
| Footnote |
Description |
Footnote1 |
Annualized | |
|
| Expenses Paid, Amount |
|
$ 29
|
|
| Expense Ratio, Percent |
[16] |
0.61%
|
|
| AssetsNet |
|
$ 3,785,928,732
|
|
| Holdings Count | Holding |
|
67
|
|
| InvestmentCompanyPortfolioTurnover |
|
11.00%
|
|
| Additional Fund Statistics [Text Block] |
|
Table Summary
Total Net Assets |
$3,785,928,732 |
# of Portfolio Holdings |
67 |
Portfolio Turnover Rate |
11% | |
|
| Holdings [Text Block] |
|
Sector Allocation (% of total investments)
Table Summary
Value |
Value |
Venture Capital |
0.5% |
Consumer Staples |
2.0% |
Real Estate |
3.1% |
Short-Term Investments |
3.4% |
Communication Services |
5.4% |
Consumer Discretionary |
6.5% |
Materials |
8.0% |
Industrials |
13.7% |
Information Technology |
14.5% |
Financials |
20.4% |
Health Care |
22.5% | |
|
| Largest Holdings [Text Block] |
|
Top Ten Holdings (% of total investments)Footnote Referencea
Table Summary
Mastercard, Inc., Class A |
4.8% |
Thermo Fisher Scientific, Inc. |
4.7% |
Visa, Inc., Class A |
4.6% |
Verisk Analytics, Inc. |
4.5% |
Alphabet, Inc., Class C |
4.5% |
Danaher Corp. |
4.4% |
TJX Cos., Inc. |
4.3% |
VeriSign, Inc. |
4.2% |
Zoetis, Inc. |
4.1% |
Microsoft Corp. |
3.7% |
Total |
43.8% |
| Footnote |
Description |
Footnotea |
Excluding cash equivalents | |
|
| Material Fund Change [Text Block] |
|
|
|
| Updated Prospectus Phone Number |
|
1-800-368-2745
|
|
| C000023774 |
|
|
|
| Shareholder Report [Line Items] |
|
|
|
| Fund Name |
|
Calvert Growth Allocation Fund
|
|
| Class Name |
|
Class A
|
|
| Trading Symbol |
|
CAAAX
|
|
| Annual or Semi-Annual Statement [Text Block] |
|
This semi-annual shareholder report contains important information about the Calvert Growth Allocation Fund for the period of October 1, 2025 to March 31, 2026.
|
|
| Additional Information [Text Block] |
|
You can find additional information about the Fund at www.eatonvance.com/calvert-fund-documents.php. You can also request this information by contacting us at 1-800-368-2745.
|
|
| Additional Information Phone Number |
|
1-800-368-2745
|
|
| Additional Information Website |
|
<span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 400; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left; text-align-last: auto; white-space-collapse: preserve-breaks;">www.eatonvance.com/calvert-fund-documents.php</span>
|
|
| Expenses [Text Block] |
|
What were the Fund costs for the last six months?(based on a hypothetical $10,000 investment)
Table Summary
Class Name |
Costs of a $10,000 investment |
Costs paid as a percentage of a $10,000 investment |
Class A |
$22 |
0.44%Footnote Reference1 |
| Footnote |
Description |
Footnote1 |
Annualized | |
|
| Expenses Paid, Amount |
|
$ 22
|
|
| Expense Ratio, Percent |
[17] |
0.44%
|
|
| AssetsNet |
|
$ 348,276,730
|
|
| Holdings Count | Holding |
|
19
|
|
| InvestmentCompanyPortfolioTurnover |
|
18.00%
|
|
| Additional Fund Statistics [Text Block] |
|
Table Summary
Total Net Assets |
$348,276,730 |
# of Portfolio Holdings |
19 |
Portfolio Turnover Rate |
18% | |
|
| Holdings [Text Block] |
|
Asset Allocation (% of total investments)
Table Summary
Value |
Value |
Short-Term Investments |
0.0%Footnote Reference* |
Income Funds |
9.5% |
International and Global Equity Funds |
26.7% |
Domestic Equity Funds |
63.8% |
| Footnote |
Description |
Footnote* |
Amount is less than 0.05%. | |
|
| Largest Holdings [Text Block] |
|
Top Ten Holdings (% of total investments)Footnote Referencea
Table Summary
Calvert U.S. Large-Cap Growth Responsible Index Fund, Class R6 |
22.6% |
Calvert U.S. Large-Cap Core Responsible Index Fund, Class R6 |
21.2% |
Calvert International Responsible Index Fund, Class R6 |
11.3% |
Calvert U.S. Large-Cap Value Responsible Index Fund, Class R6 |
8.9% |
Calvert International Equity Fund, Class R6 |
7.0% |
Calvert Equity Fund, Class R6 |
6.6% |
Calvert Emerging Markets Advancement Fund, Class I |
5.7% |
Calvert Bond Fund, Class R6 |
4.0% |
Calvert Core Bond Fund, Class I |
3.4% |
Calvert Emerging Markets Equity Fund, Class R6 |
2.7% |
Total |
93.4% |
| Footnote |
Description |
Footnotea |
Excluding cash equivalents | |
|
| Material Fund Change [Text Block] |
|
|
|
| Updated Prospectus Phone Number |
|
1-800-368-2745
|
|
| C000023775 |
|
|
|
| Shareholder Report [Line Items] |
|
|
|
| Fund Name |
|
Calvert Growth Allocation Fund
|
|
| Class Name |
|
Class C
|
|
| Trading Symbol |
|
CAACX
|
|
| Annual or Semi-Annual Statement [Text Block] |
|
This semi-annual shareholder report contains important information about the Calvert Growth Allocation Fund for the period of October 1, 2025 to March 31, 2026.
|
|
| Additional Information [Text Block] |
|
You can find additional information about the Fund at www.eatonvance.com/calvert-fund-documents.php. You can also request this information by contacting us at 1-800-368-2745.
|
|
| Additional Information Phone Number |
|
1-800-368-2745
|
|
| Additional Information Website |
|
<span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 400; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left; text-align-last: auto; white-space-collapse: preserve-breaks;">www.eatonvance.com/calvert-fund-documents.php</span>
|
|
| Expenses [Text Block] |
|
What were the Fund costs for the last six months?(based on a hypothetical $10,000 investment)
Table Summary
Class Name |
Costs of a $10,000 investment |
Costs paid as a percentage of a $10,000 investment |
Class C |
$59 |
1.19%Footnote Reference1 |
| Footnote |
Description |
Footnote1 |
Annualized | |
|
| Expenses Paid, Amount |
|
$ 59
|
|
| Expense Ratio, Percent |
[18] |
1.19%
|
|
| AssetsNet |
|
$ 348,276,730
|
|
| Holdings Count | Holding |
|
19
|
|
| InvestmentCompanyPortfolioTurnover |
|
18.00%
|
|
| Additional Fund Statistics [Text Block] |
|
Table Summary
Total Net Assets |
$348,276,730 |
# of Portfolio Holdings |
19 |
Portfolio Turnover Rate |
18% | |
|
| Holdings [Text Block] |
|
Asset Allocation (% of total investments)
Table Summary
Value |
Value |
Short-Term Investments |
0.0%Footnote Reference* |
Income Funds |
9.5% |
International and Global Equity Funds |
26.7% |
Domestic Equity Funds |
63.8% |
| Footnote |
Description |
Footnote* |
Amount is less than 0.05%. | |
|
| Largest Holdings [Text Block] |
|
Top Ten Holdings (% of total investments)Footnote Referencea
Table Summary
Calvert U.S. Large-Cap Growth Responsible Index Fund, Class R6 |
22.6% |
Calvert U.S. Large-Cap Core Responsible Index Fund, Class R6 |
21.2% |
Calvert International Responsible Index Fund, Class R6 |
11.3% |
Calvert U.S. Large-Cap Value Responsible Index Fund, Class R6 |
8.9% |
Calvert International Equity Fund, Class R6 |
7.0% |
Calvert Equity Fund, Class R6 |
6.6% |
Calvert Emerging Markets Advancement Fund, Class I |
5.7% |
Calvert Bond Fund, Class R6 |
4.0% |
Calvert Core Bond Fund, Class I |
3.4% |
Calvert Emerging Markets Equity Fund, Class R6 |
2.7% |
Total |
93.4% |
| Footnote |
Description |
Footnotea |
Excluding cash equivalents | |
|
| Material Fund Change [Text Block] |
|
|
|
| Updated Prospectus Phone Number |
|
1-800-368-2745
|
|
| C000099328 |
|
|
|
| Shareholder Report [Line Items] |
|
|
|
| Fund Name |
|
Calvert Growth Allocation Fund
|
|
| Class Name |
|
Class I
|
|
| Trading Symbol |
|
CAGIX
|
|
| Annual or Semi-Annual Statement [Text Block] |
|
This semi-annual shareholder report contains important information about the Calvert Growth Allocation Fund for the period of October 1, 2025 to March 31, 2026.
|
|
| Additional Information [Text Block] |
|
You can find additional information about the Fund at www.eatonvance.com/calvert-fund-documents.php. You can also request this information by contacting us at 1-800-368-2745.
|
|
| Additional Information Phone Number |
|
1-800-368-2745
|
|
| Additional Information Website |
|
<span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 400; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left; text-align-last: auto; white-space-collapse: preserve-breaks;">www.eatonvance.com/calvert-fund-documents.php</span>
|
|
| Expenses [Text Block] |
|
What were the Fund costs for the last six months?(based on a hypothetical $10,000 investment)
Table Summary
Class Name |
Costs of a $10,000 investment |
Costs paid as a percentage of a $10,000 investment |
Class I |
$9 |
0.19%Footnote Reference1 |
| Footnote |
Description |
Footnote1 |
Annualized | |
|
| Expenses Paid, Amount |
|
$ 9
|
|
| Expense Ratio, Percent |
[19] |
0.19%
|
|
| AssetsNet |
|
$ 348,276,730
|
|
| Holdings Count | Holding |
|
19
|
|
| InvestmentCompanyPortfolioTurnover |
|
18.00%
|
|
| Additional Fund Statistics [Text Block] |
|
Table Summary
Total Net Assets |
$348,276,730 |
# of Portfolio Holdings |
19 |
Portfolio Turnover Rate |
18% | |
|
| Holdings [Text Block] |
|
Asset Allocation (% of total investments)
Table Summary
Value |
Value |
Short-Term Investments |
0.0%Footnote Reference* |
Income Funds |
9.5% |
International and Global Equity Funds |
26.7% |
Domestic Equity Funds |
63.8% |
| Footnote |
Description |
Footnote* |
Amount is less than 0.05%. | |
|
| Largest Holdings [Text Block] |
|
Top Ten Holdings (% of total investments)Footnote Referencea
Table Summary
Calvert U.S. Large-Cap Growth Responsible Index Fund, Class R6 |
22.6% |
Calvert U.S. Large-Cap Core Responsible Index Fund, Class R6 |
21.2% |
Calvert International Responsible Index Fund, Class R6 |
11.3% |
Calvert U.S. Large-Cap Value Responsible Index Fund, Class R6 |
8.9% |
Calvert International Equity Fund, Class R6 |
7.0% |
Calvert Equity Fund, Class R6 |
6.6% |
Calvert Emerging Markets Advancement Fund, Class I |
5.7% |
Calvert Bond Fund, Class R6 |
4.0% |
Calvert Core Bond Fund, Class I |
3.4% |
Calvert Emerging Markets Equity Fund, Class R6 |
2.7% |
Total |
93.4% |
| Footnote |
Description |
Footnotea |
Excluding cash equivalents | |
|
| Material Fund Change [Text Block] |
|
|
|
| Updated Prospectus Phone Number |
|
1-800-368-2745
|
|
| C000235280 |
|
|
|
| Shareholder Report [Line Items] |
|
|
|
| Fund Name |
|
Calvert Growth Allocation Fund
|
|
| Class Name |
|
Class R6
|
|
| Trading Symbol |
|
CGARX
|
|
| Annual or Semi-Annual Statement [Text Block] |
|
This semi-annual shareholder report contains important information about the Calvert Growth Allocation Fund for the period of October 1, 2025 to March 31, 2026.
|
|
| Additional Information [Text Block] |
|
You can find additional information about the Fund at www.eatonvance.com/calvert-fund-documents.php. You can also request this information by contacting us at 1-800-368-2745.
|
|
| Additional Information Phone Number |
|
1-800-368-2745
|
|
| Additional Information Website |
|
<span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 400; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left; text-align-last: auto; white-space-collapse: preserve-breaks;">www.eatonvance.com/calvert-fund-documents.php</span>
|
|
| Expenses [Text Block] |
|
What were the Fund costs for the last six months?(based on a hypothetical $10,000 investment)
Table Summary
Class Name |
Costs of a $10,000 investment |
Costs paid as a percentage of a $10,000 investment |
Class R6 |
$6 |
0.13%Footnote Reference1 |
| Footnote |
Description |
Footnote1 |
Annualized | |
|
| Expenses Paid, Amount |
|
$ 6
|
|
| Expense Ratio, Percent |
[20] |
0.13%
|
|
| AssetsNet |
|
$ 348,276,730
|
|
| Holdings Count | Holding |
|
19
|
|
| InvestmentCompanyPortfolioTurnover |
|
18.00%
|
|
| Additional Fund Statistics [Text Block] |
|
Table Summary
Total Net Assets |
$348,276,730 |
# of Portfolio Holdings |
19 |
Portfolio Turnover Rate |
18% | |
|
| Holdings [Text Block] |
|
Asset Allocation (% of total investments)
Table Summary
Value |
Value |
Short-Term Investments |
0.0%Footnote Reference* |
Income Funds |
9.5% |
International and Global Equity Funds |
26.7% |
Domestic Equity Funds |
63.8% |
| Footnote |
Description |
Footnote* |
Amount is less than 0.05%. | |
|
| Largest Holdings [Text Block] |
|
Top Ten Holdings (% of total investments)Footnote Referencea
Table Summary
Calvert U.S. Large-Cap Growth Responsible Index Fund, Class R6 |
22.6% |
Calvert U.S. Large-Cap Core Responsible Index Fund, Class R6 |
21.2% |
Calvert International Responsible Index Fund, Class R6 |
11.3% |
Calvert U.S. Large-Cap Value Responsible Index Fund, Class R6 |
8.9% |
Calvert International Equity Fund, Class R6 |
7.0% |
Calvert Equity Fund, Class R6 |
6.6% |
Calvert Emerging Markets Advancement Fund, Class I |
5.7% |
Calvert Bond Fund, Class R6 |
4.0% |
Calvert Core Bond Fund, Class I |
3.4% |
Calvert Emerging Markets Equity Fund, Class R6 |
2.7% |
Total |
93.4% |
| Footnote |
Description |
Footnotea |
Excluding cash equivalents | |
|
| Material Fund Change [Text Block] |
|
|
|
| Updated Prospectus Phone Number |
|
1-800-368-2745
|
|
| C000023772 |
|
|
|
| Shareholder Report [Line Items] |
|
|
|
| Fund Name |
|
Calvert Moderate Allocation Fund
|
|
| Class Name |
|
Class A
|
|
| Trading Symbol |
|
CMAAX
|
|
| Annual or Semi-Annual Statement [Text Block] |
|
This semi-annual shareholder report contains important information about the Calvert Moderate Allocation Fund for the period of October 1, 2025 to March 31, 2026.
|
|
| Additional Information [Text Block] |
|
You can find additional information about the Fund at www.eatonvance.com/calvert-fund-documents.php. You can also request this information by contacting us at 1-800-368-2745.
|
|
| Additional Information Phone Number |
|
1-800-368-2745
|
|
| Additional Information Website |
|
<span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 400; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left; text-align-last: auto; white-space-collapse: preserve-breaks;">www.eatonvance.com/calvert-fund-documents.php</span>
|
|
| Expenses [Text Block] |
|
What were the Fund costs for the last six months?(based on a hypothetical $10,000 investment)
Table Summary
Class Name |
Costs of a $10,000 investment |
Costs paid as a percentage of a $10,000 investment |
Class A |
$21 |
0.43%Footnote Reference1 |
| Footnote |
Description |
Footnote1 |
Annualized | |
|
| Expenses Paid, Amount |
|
$ 21
|
|
| Expense Ratio, Percent |
[21] |
0.43%
|
|
| AssetsNet |
|
$ 371,635,940
|
|
| Holdings Count | Holding |
|
22
|
|
| InvestmentCompanyPortfolioTurnover |
|
17.00%
|
|
| Additional Fund Statistics [Text Block] |
|
Table Summary
Total Net Assets |
$371,635,940 |
# of Portfolio Holdings |
22 |
Portfolio Turnover Rate |
17% | |
|
| Holdings [Text Block] |
|
Asset Allocation (% of total investments)
Table Summary
Value |
Value |
Short-Term Investments |
0.5% |
International and Global Equity Funds |
17.6% |
Income Funds |
34.0% |
Domestic Equity Funds |
47.9% | |
|
| Largest Holdings [Text Block] |
|
Top Ten Holdings (% of total investments)Footnote Referencea
Table Summary
Calvert U.S. Large-Cap Growth Responsible Index Fund, Class R6 |
16.9% |
Calvert U.S. Large-Cap Core Responsible Index Fund, Class R6 |
16.0% |
Calvert Bond Fund, Class R6 |
14.4% |
Calvert Core Bond Fund, Class I |
9.3% |
Calvert U.S. Large-Cap Value Responsible Index Fund, Class R6 |
6.7% |
Calvert International Responsible Index Fund, Class R6 |
6.6% |
Calvert International Equity Fund, Class R6 |
5.2% |
Calvert Equity Fund, Class R6 |
5.0% |
Calvert Emerging Markets Advancement Fund, Class I |
4.1% |
Calvert Mortgage Access Fund, Class I |
4.1% |
Total |
88.3% |
| Footnote |
Description |
Footnotea |
Excluding cash equivalents | |
|
| Material Fund Change [Text Block] |
|
|
|
| Updated Prospectus Phone Number |
|
1-800-368-2745
|
|
| C000023773 |
|
|
|
| Shareholder Report [Line Items] |
|
|
|
| Fund Name |
|
Calvert Moderate Allocation Fund
|
|
| Class Name |
|
Class C
|
|
| Trading Symbol |
|
CMACX
|
|
| Annual or Semi-Annual Statement [Text Block] |
|
This semi-annual shareholder report contains important information about the Calvert Moderate Allocation Fund for the period of October 1, 2025 to March 31, 2026.
|
|
| Additional Information [Text Block] |
|
You can find additional information about the Fund at www.eatonvance.com/calvert-fund-documents.php. You can also request this information by contacting us at 1-800-368-2745.
|
|
| Additional Information Phone Number |
|
1-800-368-2745
|
|
| Additional Information Website |
|
<span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 400; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left; text-align-last: auto; white-space-collapse: preserve-breaks;">www.eatonvance.com/calvert-fund-documents.php</span>
|
|
| Expenses [Text Block] |
|
What were the Fund costs for the last six months?(based on a hypothetical $10,000 investment)
Table Summary
Class Name |
Costs of a $10,000 investment |
Costs paid as a percentage of a $10,000 investment |
Class C |
$59 |
1.18%Footnote Reference1 |
| Footnote |
Description |
Footnote1 |
Annualized | |
|
| Expenses Paid, Amount |
|
$ 59
|
|
| Expense Ratio, Percent |
[22] |
1.18%
|
|
| AssetsNet |
|
$ 371,635,940
|
|
| Holdings Count | Holding |
|
22
|
|
| InvestmentCompanyPortfolioTurnover |
|
17.00%
|
|
| Additional Fund Statistics [Text Block] |
|
Table Summary
Total Net Assets |
$371,635,940 |
# of Portfolio Holdings |
22 |
Portfolio Turnover Rate |
17% | |
|
| Holdings [Text Block] |
|
Asset Allocation (% of total investments)
Table Summary
Value |
Value |
Short-Term Investments |
0.5% |
International and Global Equity Funds |
17.6% |
Income Funds |
34.0% |
Domestic Equity Funds |
47.9% | |
|
| Largest Holdings [Text Block] |
|
Top Ten Holdings (% of total investments)Footnote Referencea
Table Summary
Calvert U.S. Large-Cap Growth Responsible Index Fund, Class R6 |
16.9% |
Calvert U.S. Large-Cap Core Responsible Index Fund, Class R6 |
16.0% |
Calvert Bond Fund, Class R6 |
14.4% |
Calvert Core Bond Fund, Class I |
9.3% |
Calvert U.S. Large-Cap Value Responsible Index Fund, Class R6 |
6.7% |
Calvert International Responsible Index Fund, Class R6 |
6.6% |
Calvert International Equity Fund, Class R6 |
5.2% |
Calvert Equity Fund, Class R6 |
5.0% |
Calvert Emerging Markets Advancement Fund, Class I |
4.1% |
Calvert Mortgage Access Fund, Class I |
4.1% |
Total |
88.3% |
| Footnote |
Description |
Footnotea |
Excluding cash equivalents | |
|
| Material Fund Change [Text Block] |
|
|
|
| Updated Prospectus Phone Number |
|
1-800-368-2745
|
|
| C000099327 |
|
|
|
| Shareholder Report [Line Items] |
|
|
|
| Fund Name |
|
Calvert Moderate Allocation Fund
|
|
| Class Name |
|
Class I
|
|
| Trading Symbol |
|
CLAIX
|
|
| Annual or Semi-Annual Statement [Text Block] |
|
This semi-annual shareholder report contains important information about the Calvert Moderate Allocation Fund for the period of October 1, 2025 to March 31, 2026.
|
|
| Additional Information [Text Block] |
|
You can find additional information about the Fund at www.eatonvance.com/calvert-fund-documents.php. You can also request this information by contacting us at 1-800-368-2745.
|
|
| Additional Information Phone Number |
|
1-800-368-2745
|
|
| Additional Information Website |
|
<span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 400; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left; text-align-last: auto; white-space-collapse: preserve-breaks;">www.eatonvance.com/calvert-fund-documents.php</span>
|
|
| Expenses [Text Block] |
|
What were the Fund costs for the last six months?(based on a hypothetical $10,000 investment)
Table Summary
Class Name |
Costs of a $10,000 investment |
Costs paid as a percentage of a $10,000 investment |
Class I |
$9 |
0.18%Footnote Reference1 |
| Footnote |
Description |
Footnote1 |
Annualized | |
|
| Expenses Paid, Amount |
|
$ 9
|
|
| Expense Ratio, Percent |
[23] |
0.18%
|
|
| AssetsNet |
|
$ 371,635,940
|
|
| Holdings Count | Holding |
|
22
|
|
| InvestmentCompanyPortfolioTurnover |
|
17.00%
|
|
| Additional Fund Statistics [Text Block] |
|
Table Summary
Total Net Assets |
$371,635,940 |
# of Portfolio Holdings |
22 |
Portfolio Turnover Rate |
17% | |
|
| Holdings [Text Block] |
|
Asset Allocation (% of total investments)
Table Summary
Value |
Value |
Short-Term Investments |
0.5% |
International and Global Equity Funds |
17.6% |
Income Funds |
34.0% |
Domestic Equity Funds |
47.9% | |
|
| Largest Holdings [Text Block] |
|
Top Ten Holdings (% of total investments)Footnote Referencea
Table Summary
Calvert U.S. Large-Cap Growth Responsible Index Fund, Class R6 |
16.9% |
Calvert U.S. Large-Cap Core Responsible Index Fund, Class R6 |
16.0% |
Calvert Bond Fund, Class R6 |
14.4% |
Calvert Core Bond Fund, Class I |
9.3% |
Calvert U.S. Large-Cap Value Responsible Index Fund, Class R6 |
6.7% |
Calvert International Responsible Index Fund, Class R6 |
6.6% |
Calvert International Equity Fund, Class R6 |
5.2% |
Calvert Equity Fund, Class R6 |
5.0% |
Calvert Emerging Markets Advancement Fund, Class I |
4.1% |
Calvert Mortgage Access Fund, Class I |
4.1% |
Total |
88.3% |
| Footnote |
Description |
Footnotea |
Excluding cash equivalents | |
|
| Material Fund Change [Text Block] |
|
|
|
| Updated Prospectus Phone Number |
|
1-800-368-2745
|
|
| C000235279 |
|
|
|
| Shareholder Report [Line Items] |
|
|
|
| Fund Name |
|
Calvert Moderate Allocation Fund
|
|
| Class Name |
|
Class R6
|
|
| Trading Symbol |
|
CAMRX
|
|
| Annual or Semi-Annual Statement [Text Block] |
|
This semi-annual shareholder report contains important information about the Calvert Moderate Allocation Fund for the period of October 1, 2025 to March 31, 2026.
|
|
| Additional Information [Text Block] |
|
You can find additional information about the Fund at www.eatonvance.com/calvert-fund-documents.php. You can also request this information by contacting us at 1-800-368-2745.
|
|
| Additional Information Phone Number |
|
1-800-368-2745
|
|
| Additional Information Website |
|
<span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 400; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left; text-align-last: auto; white-space-collapse: preserve-breaks;">www.eatonvance.com/calvert-fund-documents.php</span>
|
|
| Expenses [Text Block] |
|
What were the Fund costs for the last six months?(based on a hypothetical $10,000 investment)
Table Summary
Class Name |
Costs of a $10,000 investment |
Costs paid as a percentage of a $10,000 investment |
Class R6 |
$6 |
0.12%Footnote Reference1 |
| Footnote |
Description |
Footnote1 |
Annualized | |
|
| Expenses Paid, Amount |
|
$ 6
|
|
| Expense Ratio, Percent |
[24] |
0.12%
|
|
| AssetsNet |
|
$ 371,635,940
|
|
| Holdings Count | Holding |
|
22
|
|
| InvestmentCompanyPortfolioTurnover |
|
17.00%
|
|
| Additional Fund Statistics [Text Block] |
|
Table Summary
Total Net Assets |
$371,635,940 |
# of Portfolio Holdings |
22 |
Portfolio Turnover Rate |
17% | |
|
| Holdings [Text Block] |
|
Asset Allocation (% of total investments)
Table Summary
Value |
Value |
Short-Term Investments |
0.5% |
International and Global Equity Funds |
17.6% |
Income Funds |
34.0% |
Domestic Equity Funds |
47.9% | |
|
| Largest Holdings [Text Block] |
|
Top Ten Holdings (% of total investments)Footnote Referencea
Table Summary
Calvert U.S. Large-Cap Growth Responsible Index Fund, Class R6 |
16.9% |
Calvert U.S. Large-Cap Core Responsible Index Fund, Class R6 |
16.0% |
Calvert Bond Fund, Class R6 |
14.4% |
Calvert Core Bond Fund, Class I |
9.3% |
Calvert U.S. Large-Cap Value Responsible Index Fund, Class R6 |
6.7% |
Calvert International Responsible Index Fund, Class R6 |
6.6% |
Calvert International Equity Fund, Class R6 |
5.2% |
Calvert Equity Fund, Class R6 |
5.0% |
Calvert Emerging Markets Advancement Fund, Class I |
4.1% |
Calvert Mortgage Access Fund, Class I |
4.1% |
Total |
88.3% |
| Footnote |
Description |
Footnotea |
Excluding cash equivalents | |
|
| Material Fund Change [Text Block] |
|
|
|
| Updated Prospectus Phone Number |
|
1-800-368-2745
|
|
| C000235426 |
|
|
|
| Shareholder Report [Line Items] |
|
|
|
| Fund Name |
|
Calvert Focused Value Fund
|
|
| Class Name |
|
Class A
|
|
| Trading Symbol |
|
CRFAX
|
|
| Annual or Semi-Annual Statement [Text Block] |
|
This semi-annual shareholder report contains important information about the Calvert Focused Value Fund for the period of October 1, 2025 to March 31, 2026.
|
|
| Additional Information [Text Block] |
|
You can find additional information about the Fund at www.eatonvance.com/calvert-fund-documents.php. You can also request this information by contacting us at 1-800-368-2745.
|
|
| Material Fund Change Notice [Text Block] |
|
This report describes changes to the Fund that occurred during the reporting period.
|
|
| Additional Information Phone Number |
|
1-800-368-2745
|
|
| Additional Information Website |
|
<span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 400; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left; text-align-last: auto; white-space-collapse: preserve-breaks;">www.eatonvance.com/calvert-fund-documents.php</span>
|
|
| Expenses [Text Block] |
|
What were the Fund costs for the last six months?(based on a hypothetical $10,000 investment)
Table Summary
Class Name |
Costs of a $10,000 investment |
Costs paid as a percentage of a $10,000 investment |
Class A |
$76 |
1.51%Footnote Reference1 |
| Footnote |
Description |
Footnote1 |
Annualized | |
|
| Expenses Paid, Amount |
|
$ 76
|
|
| Expense Ratio, Percent |
[25] |
1.51%
|
|
| Material Change Date |
|
|
Sep. 30, 2025
|
| AssetsNet |
|
$ 12,207,225
|
|
| Holdings Count | Holding |
|
30
|
|
| InvestmentCompanyPortfolioTurnover |
|
25.00%
|
|
| Additional Fund Statistics [Text Block] |
|
Table Summary
Total Net Assets |
$12,207,225 |
# of Portfolio Holdings |
30 |
Portfolio Turnover Rate |
25% | |
|
| Holdings [Text Block] |
|
Sector Allocation (% of total investments)
Table Summary
Value |
Value |
Short-Term Investments |
1.0% |
Real Estate |
3.8% |
Utilities |
4.7% |
Communication Services |
5.9% |
Materials |
6.7% |
Consumer Discretionary |
8.5% |
Consumer Staples |
8.8% |
Health Care |
10.5% |
Information Technology |
12.8% |
Industrials |
13.6% |
Financials |
23.7% | |
|
| Largest Holdings [Text Block] |
|
Top Ten Holdings (% of total investments)Footnote Referencea
Table Summary
Alphabet, Inc., Class A |
5.9% |
Amazon.com, Inc. |
5.6% |
Bristol-Myers Squibb Co. |
4.7% |
Bank of America Corp. |
4.0% |
Johnson Controls International PLC |
3.8% |
First Industrial Realty Trust, Inc. |
3.8% |
Charles Schwab Corp. |
3.8% |
American International Group, Inc. |
3.6% |
Micron Technology, Inc. |
3.6% |
Hershey Co. |
3.6% |
Total |
42.4% |
| Footnote |
Description |
Footnotea |
Excluding cash equivalents | |
|
| Material Fund Change [Text Block] |
|
This is a summary of certain changes to the Fund since September 30, 2025. In March 2026, the Fund's Trustees approved the liquidation of the Fund. Effective as of the close of business on May 4, 2026, shares of the Fund were no longer available for purchase or exchange. All of the Fund’s outstanding shares were redeemed and the Fund was liquidated at the close of business on May 11, 2026. |
|
| Summary of Change Legend [Text Block] |
|
This is a summary of certain changes to the Fund since September 30, 2025.
|
|
| Updated Prospectus Phone Number |
|
1-800-368-2745
|
|
| C000235427 |
|
|
|
| Shareholder Report [Line Items] |
|
|
|
| Fund Name |
|
Calvert Focused Value Fund
|
|
| Class Name |
|
Class C
|
|
| Trading Symbol |
|
CRFCX
|
|
| Annual or Semi-Annual Statement [Text Block] |
|
This semi-annual shareholder report contains important information about the Calvert Focused Value Fund for the period of October 1, 2025 to March 31, 2026.
|
|
| Additional Information [Text Block] |
|
You can find additional information about the Fund at www.eatonvance.com/calvert-fund-documents.php. You can also request this information by contacting us at 1-800-368-2745.
|
|
| Material Fund Change Notice [Text Block] |
|
This report describes changes to the Fund that occurred during the reporting period.
|
|
| Additional Information Phone Number |
|
1-800-368-2745
|
|
| Additional Information Website |
|
<span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 400; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left; text-align-last: auto; white-space-collapse: preserve-breaks;">www.eatonvance.com/calvert-fund-documents.php</span>
|
|
| Expenses [Text Block] |
|
What were the Fund costs for the last six months?(based on a hypothetical $10,000 investment)
Table Summary
Class Name |
Costs of a $10,000 investment |
Costs paid as a percentage of a $10,000 investment |
Class C |
$113 |
2.23%Footnote Reference1 |
| Footnote |
Description |
Footnote1 |
Annualized | |
|
| Expenses Paid, Amount |
|
$ 113
|
|
| Expense Ratio, Percent |
[26] |
2.23%
|
|
| Material Change Date |
|
|
Sep. 30, 2025
|
| AssetsNet |
|
$ 12,207,225
|
|
| Holdings Count | Holding |
|
30
|
|
| InvestmentCompanyPortfolioTurnover |
|
25.00%
|
|
| Additional Fund Statistics [Text Block] |
|
Table Summary
Total Net Assets |
$12,207,225 |
# of Portfolio Holdings |
30 |
Portfolio Turnover Rate |
25% | |
|
| Holdings [Text Block] |
|
Sector Allocation (% of total investments)
Table Summary
Value |
Value |
Short-Term Investments |
1.0% |
Real Estate |
3.8% |
Utilities |
4.7% |
Communication Services |
5.9% |
Materials |
6.7% |
Consumer Discretionary |
8.5% |
Consumer Staples |
8.8% |
Health Care |
10.5% |
Information Technology |
12.8% |
Industrials |
13.6% |
Financials |
23.7% | |
|
| Largest Holdings [Text Block] |
|
Top Ten Holdings (% of total investments)Footnote Referencea
Table Summary
Alphabet, Inc., Class A |
5.9% |
Amazon.com, Inc. |
5.6% |
Bristol-Myers Squibb Co. |
4.7% |
Bank of America Corp. |
4.0% |
Johnson Controls International PLC |
3.8% |
First Industrial Realty Trust, Inc. |
3.8% |
Charles Schwab Corp. |
3.8% |
American International Group, Inc. |
3.6% |
Micron Technology, Inc. |
3.6% |
Hershey Co. |
3.6% |
Total |
42.4% |
| Footnote |
Description |
Footnotea |
Excluding cash equivalents | |
|
| Material Fund Change [Text Block] |
|
This is a summary of certain changes to the Fund since September 30, 2025. In March 2026, the Fund's Trustees approved the liquidation of the Fund. Effective as of the close of business on May 4, 2026, shares of the Fund were no longer available for purchase or exchange. All of the Fund’s outstanding shares were redeemed and the Fund was liquidated at the close of business on May 11, 2026. |
|
| Summary of Change Legend [Text Block] |
|
This is a summary of certain changes to the Fund since September 30, 2025.
|
|
| Updated Prospectus Phone Number |
|
1-800-368-2745
|
|
| C000235428 |
|
|
|
| Shareholder Report [Line Items] |
|
|
|
| Fund Name |
|
Calvert Focused Value Fund
|
|
| Class Name |
|
Class I
|
|
| Trading Symbol |
|
CRFIX
|
|
| Annual or Semi-Annual Statement [Text Block] |
|
This semi-annual shareholder report contains important information about the Calvert Focused Value Fund for the period of October 1, 2025 to March 31, 2026.
|
|
| Additional Information [Text Block] |
|
You can find additional information about the Fund at www.eatonvance.com/calvert-fund-documents.php. You can also request this information by contacting us at 1-800-368-2745.
|
|
| Material Fund Change Notice [Text Block] |
|
This report describes changes to the Fund that occurred during the reporting period.
|
|
| Additional Information Phone Number |
|
1-800-368-2745
|
|
| Additional Information Website |
|
<span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 400; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left; text-align-last: auto; white-space-collapse: preserve-breaks;">www.eatonvance.com/calvert-fund-documents.php</span>
|
|
| Expenses [Text Block] |
|
What were the Fund costs for the last six months?(based on a hypothetical $10,000 investment)
Table Summary
Class Name |
Costs of a $10,000 investment |
Costs paid as a percentage of a $10,000 investment |
Class I |
$62 |
1.22%Footnote Reference1 |
| Footnote |
Description |
Footnote1 |
Annualized | |
|
| Expenses Paid, Amount |
|
$ 62
|
|
| Expense Ratio, Percent |
[27] |
1.22%
|
|
| Material Change Date |
|
|
Sep. 30, 2025
|
| AssetsNet |
|
$ 12,207,225
|
|
| Holdings Count | Holding |
|
30
|
|
| InvestmentCompanyPortfolioTurnover |
|
25.00%
|
|
| Additional Fund Statistics [Text Block] |
|
Table Summary
Total Net Assets |
$12,207,225 |
# of Portfolio Holdings |
30 |
Portfolio Turnover Rate |
25% | |
|
| Holdings [Text Block] |
|
Sector Allocation (% of total investments)
Table Summary
Value |
Value |
Short-Term Investments |
1.0% |
Real Estate |
3.8% |
Utilities |
4.7% |
Communication Services |
5.9% |
Materials |
6.7% |
Consumer Discretionary |
8.5% |
Consumer Staples |
8.8% |
Health Care |
10.5% |
Information Technology |
12.8% |
Industrials |
13.6% |
Financials |
23.7% | |
|
| Largest Holdings [Text Block] |
|
Top Ten Holdings (% of total investments)Footnote Referencea
Table Summary
Alphabet, Inc., Class A |
5.9% |
Amazon.com, Inc. |
5.6% |
Bristol-Myers Squibb Co. |
4.7% |
Bank of America Corp. |
4.0% |
Johnson Controls International PLC |
3.8% |
First Industrial Realty Trust, Inc. |
3.8% |
Charles Schwab Corp. |
3.8% |
American International Group, Inc. |
3.6% |
Micron Technology, Inc. |
3.6% |
Hershey Co. |
3.6% |
Total |
42.4% |
| Footnote |
Description |
Footnotea |
Excluding cash equivalents | |
|
| Material Fund Change [Text Block] |
|
This is a summary of certain changes to the Fund since September 30, 2025. In March 2026, the Fund's Trustees approved the liquidation of the Fund. Effective as of the close of business on May 4, 2026, shares of the Fund were no longer available for purchase or exchange. All of the Fund’s outstanding shares were redeemed and the Fund was liquidated at the close of business on May 11, 2026. |
|
| Summary of Change Legend [Text Block] |
|
This is a summary of certain changes to the Fund since September 30, 2025.
|
|
| Updated Prospectus Phone Number |
|
1-800-368-2745
|
|
| C000235425 |
|
|
|
| Shareholder Report [Line Items] |
|
|
|
| Fund Name |
|
Calvert Focused Value Fund
|
|
| Class Name |
|
Class R6
|
|
| Trading Symbol |
|
CRFRX
|
|
| Annual or Semi-Annual Statement [Text Block] |
|
This semi-annual shareholder report contains important information about the Calvert Focused Value Fund for the period of October 1, 2025 to March 31, 2026.
|
|
| Additional Information [Text Block] |
|
You can find additional information about the Fund at www.eatonvance.com/calvert-fund-documents.php. You can also request this information by contacting us at 1-800-368-2745.
|
|
| Material Fund Change Notice [Text Block] |
|
This report describes changes to the Fund that occurred during the reporting period.
|
|
| Additional Information Phone Number |
|
1-800-368-2745
|
|
| Additional Information Website |
|
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| Expenses [Text Block] |
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What were the Fund costs for the last six months?(based on a hypothetical $10,000 investment)
Table Summary
Class Name |
Costs of a $10,000 investment |
Costs paid as a percentage of a $10,000 investment |
Class R6 |
$39 |
0.77%Footnote Reference1 |
| Footnote |
Description |
Footnote1 |
Annualized | |
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| Expenses Paid, Amount |
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$ 39
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| Expense Ratio, Percent |
[28] |
0.77%
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| Material Change Date |
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Sep. 30, 2025
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| AssetsNet |
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$ 12,207,225
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| Holdings Count | Holding |
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30
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| InvestmentCompanyPortfolioTurnover |
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25.00%
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| Additional Fund Statistics [Text Block] |
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Table Summary
Total Net Assets |
$12,207,225 |
# of Portfolio Holdings |
30 |
Portfolio Turnover Rate |
25% | |
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| Holdings [Text Block] |
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Sector Allocation (% of total investments)
Table Summary
Value |
Value |
Short-Term Investments |
1.0% |
Real Estate |
3.8% |
Utilities |
4.7% |
Communication Services |
5.9% |
Materials |
6.7% |
Consumer Discretionary |
8.5% |
Consumer Staples |
8.8% |
Health Care |
10.5% |
Information Technology |
12.8% |
Industrials |
13.6% |
Financials |
23.7% | |
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| Largest Holdings [Text Block] |
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Top Ten Holdings (% of total investments)Footnote Referencea
Table Summary
Alphabet, Inc., Class A |
5.9% |
Amazon.com, Inc. |
5.6% |
Bristol-Myers Squibb Co. |
4.7% |
Bank of America Corp. |
4.0% |
Johnson Controls International PLC |
3.8% |
First Industrial Realty Trust, Inc. |
3.8% |
Charles Schwab Corp. |
3.8% |
American International Group, Inc. |
3.6% |
Micron Technology, Inc. |
3.6% |
Hershey Co. |
3.6% |
Total |
42.4% |
| Footnote |
Description |
Footnotea |
Excluding cash equivalents | |
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| Material Fund Change [Text Block] |
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This is a summary of certain changes to the Fund since September 30, 2025. In March 2026, the Fund's Trustees approved the liquidation of the Fund. Effective as of the close of business on May 4, 2026, shares of the Fund were no longer available for purchase or exchange. All of the Fund’s outstanding shares were redeemed and the Fund was liquidated at the close of business on May 11, 2026. |
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| Summary of Change Legend [Text Block] |
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This is a summary of certain changes to the Fund since September 30, 2025.
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| Updated Prospectus Phone Number |
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1-800-368-2745
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