v3.25.2
Shareholder Report
 6 Months Ended
Jun. 30, 2025
USD ($)
$ / shares
Shareholder Report [Line Items]  
Document Type N-CSRS
Amendment Flag false
Registrant Name Legg Mason Partners Variable Equity Trust
Entity Central Index Key 0001176343
Entity Investment Company Type N-1A
Document Period End Date Jun. 30, 2025
Class I  
Shareholder Report [Line Items]  
Fund Name ClearBridge Variable Growth Portfolio
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 ClearBridge Variable Growth Portfolio for the period January 1, 2025, to June 30, 2025.
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.franklintempleton.com/regulatory-fund-documents. You can also request this information by contacting us at 877-6LM-FUND/656-3863.
Additional Information Phone Number 877-6LM-FUND/656-3863
Additional Information Website https://www.franklintempleton.com/regulatory-fund-documents
Expenses [Text Block]
WHAT WERE THE FUND COSTS FOR THE LAST SIX MONTHS? (based on a hypothetical $10,000 investment)
Class Name
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment*,†
Class I1
$46
0.88%
[1],[2],[3]
Expenses Paid, Amount $ 46 [1]
Expense Ratio, Percent 0.88% [1]
Net Assets $ 146,053,757
Holdings Count | $ / shares 53 [4]
Investment Company Portfolio Turnover 15.00%
Additional Fund Statistics [Text Block]
KEY FUND STATISTICS (as of June 30, 2025)
Total Net Assets
$146,053,757
Total Number of Portfolio Holdings*
53
Portfolio Turnover Rate
15%
[4]
Holdings [Text Block]
image
Updated Prospectus Web Address https://www.franklintempleton.com/regulatory-fund-documents
Class II  
Shareholder Report [Line Items]  
Fund Name ClearBridge Variable Growth Portfolio
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 ClearBridge Variable Growth Portfolio for the period January 1, 2025, to June 30, 2025.
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.franklintempleton.com/regulatory-fund-documents. You can also request this information by contacting us at 877-6LM-FUND/656-3863.
Additional Information Phone Number 877-6LM-FUND/656-3863
Additional Information Website https://www.franklintempleton.com/regulatory-fund-documents
Expenses [Text Block]
WHAT WERE THE FUND COSTS FOR THE LAST SIX MONTHS? (based on a hypothetical $10,000 investment)
Class Name
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment*,†
Class II1
$59
1.13%
[5],[6],[7]
Expenses Paid, Amount $ 59 [5]
Expense Ratio, Percent 1.13% [5]
Net Assets $ 146,053,757
Holdings Count | $ / shares 53 [8]
Investment Company Portfolio Turnover 15.00%
Additional Fund Statistics [Text Block]
KEY FUND STATISTICS (as of June 30, 2025)
Total Net Assets
$146,053,757
Total Number of Portfolio Holdings*
53
Portfolio Turnover Rate
15%
[8]
Holdings [Text Block]
image
Updated Prospectus Web Address https://www.franklintempleton.com/regulatory-fund-documents
[1]
1 Does not reflect expenses incurred from investing through variable annuity or variable life insurance products.
[2]
* Reflects fee waivers and/or expense reimbursements, without which expenses would have been higher.
[3]
† Annualized.
[4]
* Does not include derivatives, except purchased options, if any.
[5]
1 Does not reflect expenses incurred from investing through variable annuity or variable life insurance products.
[6]
* Reflects fee waivers and/or expense reimbursements, without which expenses would have been higher.
[7]
† Annualized.
[8]
* Does not include derivatives, except purchased options, if any.