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Shareholder Report
 12 Months Ended
Jan. 31, 2026
USD ($)
$ / shares
Shareholder Report [Line Items]  
Document Type N-CSR
Amendment Flag false
Registrant Name Legg Mason Partners Investment Trust
Entity Central Index Key 0000880366
Entity Investment Company Type N-1A
Document Period End Date Jan. 31, 2026
Shareholder Report Annual or Semi-Annual annual shareholder report
Class A  
Shareholder Report [Line Items]  
Fund Name Franklin Multi-Asset Growth Fund
Class Name Class A
Trading Symbol SCHAX
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about Franklin Multi-Asset Growth Fund for the period February 1, 2025, to January 31, 2026.
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 YEAR? (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 A1
$42
0.39%
[1]
Expenses Paid, Amount $ 42 [1]
Expense Ratio, Percent 0.39% [1]
Factors Affecting Performance [Text Block]
HOW DID THE FUND PERFORM LAST YEAR AND WHAT AFFECTED ITS PERFORMANCE?
For the twelve months ended January 31, 2026, Class A shares of Franklin Multi-Asset Growth Fund returned 15.07%. The Fund compares its performance to the Russell 3000 Index, the Bloomberg U.S. Aggregate Index and the Composite Benchmark†, which returned 15.32%, 6.85% and 17.36%, respectively, for the same period.
PERFORMANCE HIGHLIGHTS
Top contributors to performance:
↑
Exposure to U.S. equities was the leading contributor to absolute return by virtue of weight in the portfolio and return.
↑
Asset allocation effects contributed to relative performance, due to an equity overweight (especially emerging markets exposure) and fixed income underweight.
↑
The Putnam Large Cap Value Fund was the leading contributor to relative performance at the manager level.
Top detractors from performance:
↓
Underlying manager selection was a detractor from relative performance overall, especially in U.S. equities.
↓
An underweight to international equities was also a detractor.
↓
The ClearBridge Large Cap Growth Fund and the Putnam Large Cap Growth Fund were the leading detractors from relative performance at the manager level.
Performance Past Does Not Indicate Future [Text] The Fund’s past performance is not necessarily an indication of how the Fund will perform in the future.
Line Graph [Table Text Block]
image
Average Annual Return [Table Text Block]
AVERAGE ANNUAL TOTAL RETURNS (%) Period Ended January 31, 2026
 
1 Year
5 Year
10 Year
Class A
15.07
10.26
10.11
Class A (with sales charge)
8.74
8.97
9.46
Russell 3000 Index
15.32
13.60
15.13
Bloomberg U.S. Aggregate Index
6.85
-0.20
1.88
Composite Benchmark†
17.36
9.99
11.79
[2]
No Deduction of Taxes [Text Block] The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or redemption of Fund shares.
Updated Performance Information Location [Text Block]
For current month-end performance, please call Franklin Templeton at 877-6LM-FUND/656-3863 or visit
https://www.franklintempleton.com/investments/options/mutual-funds.
Important data provider notices and terms available at www.franklintempletondatasources.com.
Net Assets $ 943,580,119
Holdings Count | $ / shares 15
Advisory Fees Paid, Amount $ 0
Investment Company Portfolio Turnover 49.00%
Additional Fund Statistics [Text Block]
KEY FUND STATISTICS (as of January 31, 2026)
Total Net Assets
$943,580,119
Total Number of Portfolio Holdings
15
Total Management Fee Paid
$0
Portfolio Turnover Rate
49%
Holdings [Text Block]
WHAT DID THE FUND INVEST IN? (as of January 31, 2026)
Portfolio Composition* (% of Total Investments)
image
 [3]
Updated Prospectus Web Address https://www.franklintempleton.com/regulatory-fund-documents
Class C  
Shareholder Report [Line Items]  
Fund Name Franklin Multi-Asset Growth Fund
Class Name Class C
Trading Symbol SCHCX
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about Franklin Multi-Asset Growth Fund for the period February 1, 2025, to January 31, 2026.
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 YEAR? (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 C1
$118
1.10%
[4]
Expenses Paid, Amount $ 118 [4]
Expense Ratio, Percent 1.10% [4]
Factors Affecting Performance [Text Block]
HOW DID THE FUND PERFORM LAST YEAR AND WHAT AFFECTED ITS PERFORMANCE?
For the twelve months ended January 31, 2026, Class C shares of Franklin Multi-Asset Growth Fund returned 14.25%. The Fund compares its performance to the Russell 3000 Index, the Bloomberg U.S. Aggregate Index and the Composite Benchmark†, which returned 15.32%, 6.85% and 17.36%, respectively, for the same period.
PERFORMANCE HIGHLIGHTS
Top contributors to performance:
↑
Exposure to U.S. equities was the leading contributor to absolute return by virtue of weight in the portfolio and return.
↑
Asset allocation effects contributed to relative performance, due to an equity overweight (especially emerging markets exposure) and fixed income underweight.
↑
The Putnam Large Cap Value Fund was the leading contributor to relative performance at the manager level.
Top detractors from performance:
↓
Underlying manager selection was a detractor from relative performance overall, especially in U.S. equities.
↓
An underweight to international equities was also a detractor.
↓
The ClearBridge Large Cap Growth Fund and the Putnam Large Cap Growth Fund were the leading detractors from relative performance at the manager level.
Performance Past Does Not Indicate Future [Text] The Fund’s past performance is not necessarily an indication of how the Fund will perform in the future.
Line Graph [Table Text Block]
image
Average Annual Return [Table Text Block]
AVERAGE ANNUAL TOTAL RETURNS (%) Period Ended January 31, 2026
 
1 Year
5 Year
10 Year
Class C
14.25
9.49
9.35
Class C (with sales charge)
13.25
9.49
9.35
Russell 3000 Index
15.32
13.60
15.13
Bloomberg U.S. Aggregate Index
6.85
-0.20
1.88
Composite Benchmark†
17.36
9.99
11.79
[5]
No Deduction of Taxes [Text Block] The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or redemption of Fund shares.
Updated Performance Information Location [Text Block]
For current month-end performance, please call Franklin Templeton at 877-6LM-FUND/656-3863 or visit
https://www.franklintempleton.com/investments/options/mutual-funds.
Important data provider notices and terms available at www.franklintempletondatasources.com.
Net Assets $ 943,580,119
Holdings Count | $ / shares 15
Advisory Fees Paid, Amount $ 0
Investment Company Portfolio Turnover 49.00%
Additional Fund Statistics [Text Block]
KEY FUND STATISTICS (as of January 31, 2026)
Total Net Assets
$943,580,119
Total Number of Portfolio Holdings
15
Total Management Fee Paid
$0
Portfolio Turnover Rate
49%
Holdings [Text Block]
WHAT DID THE FUND INVEST IN? (as of January 31, 2026)
Portfolio Composition* (% of Total Investments)
image
 [6]
Updated Prospectus Web Address https://www.franklintempleton.com/regulatory-fund-documents
Class R  
Shareholder Report [Line Items]  
Fund Name Franklin Multi-Asset Growth Fund
Class Name Class R
Trading Symbol LLLRX
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about Franklin Multi-Asset Growth Fund for the period February 1, 2025, to January 31, 2026.
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 YEAR? (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 R1
$72
0.67%
[7]
Expenses Paid, Amount $ 72 [7]
Expense Ratio, Percent 0.67% [7]
Factors Affecting Performance [Text Block]
HOW DID THE FUND PERFORM LAST YEAR AND WHAT AFFECTED ITS PERFORMANCE?
For the twelve months ended January 31, 2026, Class R shares of Franklin Multi-Asset Growth Fund returned 14.71%. The Fund compares its performance to the Russell 3000 Index, the Bloomberg U.S. Aggregate Index and the Composite Benchmark†, which returned 15.32%, 6.85% and 17.36%, respectively, for the same period.
PERFORMANCE HIGHLIGHTS
Top contributors to performance:
↑
Exposure to U.S. equities was the leading contributor to absolute return by virtue of weight in the portfolio and return.
↑
Asset allocation effects contributed to relative performance, due to an equity overweight (especially emerging markets exposure) and fixed income underweight.
↑
The Putnam Large Cap Value Fund was the leading contributor to relative performance at the manager level.
Top detractors from performance:
↓
Underlying manager selection was a detractor from relative performance overall, especially in U.S. equities.
↓
An underweight to international equities was also a detractor.
↓
The ClearBridge Large Cap Growth Fund and the Putnam Large Cap Growth Fund were the leading detractors from relative performance at the manager level.
Performance Past Does Not Indicate Future [Text] The Fund’s past performance is not necessarily an indication of how the Fund will perform in the future.
Line Graph [Table Text Block]
image
Average Annual Return [Table Text Block]
AVERAGE ANNUAL TOTAL RETURNS (%) Period Ended January 31, 2026
 
1 Year
5 Year
10 Year
Class R
14.71
9.91
9.76
Russell 3000 Index
15.32
13.60
15.13
Bloomberg U.S. Aggregate Index
6.85
-0.20
1.88
Composite Benchmark†
17.36
9.99
11.79
[8]
No Deduction of Taxes [Text Block] The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or redemption of Fund shares.
Updated Performance Information Location [Text Block]
For current month-end performance, please call Franklin Templeton at 877-6LM-FUND/656-3863 or visit
https://www.franklintempleton.com/investments/options/mutual-funds.
Important data provider notices and terms available at www.franklintempletondatasources.com.
Net Assets $ 943,580,119
Holdings Count | $ / shares 15
Advisory Fees Paid, Amount $ 0
Investment Company Portfolio Turnover 49.00%
Additional Fund Statistics [Text Block]
KEY FUND STATISTICS (as of January 31, 2026)
Total Net Assets
$943,580,119
Total Number of Portfolio Holdings
15
Total Management Fee Paid
$0
Portfolio Turnover Rate
49%
Holdings [Text Block]
WHAT DID THE FUND INVEST IN? (as of January 31, 2026)
Portfolio Composition* (% of Total Investments)
image
 [9]
Updated Prospectus Web Address https://www.franklintempleton.com/regulatory-fund-documents
Class I  
Shareholder Report [Line Items]  
Fund Name Franklin Multi-Asset Growth Fund
Class Name Class I
Trading Symbol LANIX
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about Franklin Multi-Asset Growth Fund for the period February 1, 2025, to January 31, 2026.
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 YEAR? (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
$16
0.15%
[10]
Expenses Paid, Amount $ 16 [10]
Expense Ratio, Percent 0.15% [10]
Factors Affecting Performance [Text Block]
HOW DID THE FUND PERFORM LAST YEAR AND WHAT AFFECTED ITS PERFORMANCE?
For the twelve months ended January 31, 2026, Class I shares of Franklin Multi-Asset Growth Fund returned 15.34%. The Fund compares its performance to the Russell 3000 Index, the Bloomberg U.S. Aggregate Index and the Composite Benchmark†, which returned 15.32%, 6.85% and 17.36%, respectively, for the same period.
PERFORMANCE HIGHLIGHTS
Top contributors to performance:
↑
Exposure to U.S. equities was the leading contributor to absolute return by virtue of weight in the portfolio and return.
↑
Asset allocation effects contributed to relative performance, due to an equity overweight (especially emerging markets exposure) and fixed income underweight.
↑
The Putnam Large Cap Value Fund was the leading contributor to relative performance at the manager level.
Top detractors from performance:
↓
Underlying manager selection was a detractor from relative performance overall, especially in U.S. equities.
↓
An underweight to international equities was also a detractor.
↓
The ClearBridge Large Cap Growth Fund and the Putnam Large Cap Growth Fund were the leading detractors from relative performance at the manager level.
Performance Past Does Not Indicate Future [Text] The Fund’s past performance is not necessarily an indication of how the Fund will perform in the future.
Line Graph [Table Text Block]
image
Average Annual Return [Table Text Block]
AVERAGE ANNUAL TOTAL RETURNS (%) Period Ended January 31, 2026
 
1 Year
5 Year
10 Year
Class I
15.34
10.56
10.42
Russell 3000 Index
15.32
13.60
15.13
Bloomberg U.S. Aggregate Index
6.85
-0.20
1.88
Composite Benchmark†
17.36
9.99
11.79
[11]
No Deduction of Taxes [Text Block] The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or redemption of Fund shares.
Updated Performance Information Location [Text Block]
For current month-end performance, please call Franklin Templeton at 877-6LM-FUND/656-3863 or visit
https://www.franklintempleton.com/investments/options/mutual-funds.
Important data provider notices and terms available at www.franklintempletondatasources.com.
Net Assets $ 943,580,119
Holdings Count | $ / shares 15
Advisory Fees Paid, Amount $ 0
Investment Company Portfolio Turnover 49.00%
Additional Fund Statistics [Text Block]
KEY FUND STATISTICS (as of January 31, 2026)
Total Net Assets
$943,580,119
Total Number of Portfolio Holdings
15
Total Management Fee Paid
$0
Portfolio Turnover Rate
49%
Holdings [Text Block]
WHAT DID THE FUND INVEST IN? (as of January 31, 2026)
Portfolio Composition* (% of Total Investments)
image
 [12]
Updated Prospectus Web Address https://www.franklintempleton.com/regulatory-fund-documents
Class A  
Shareholder Report [Line Items]  
Fund Name Franklin Multi-Asset Moderate Growth Fund
Class Name Class A
Trading Symbol SCGRX
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about Franklin Multi-Asset Moderate Growth Fund for the period February 1, 2025, to January 31, 2026.
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 YEAR? (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 A1
$44
0.41%
[13]
Expenses Paid, Amount $ 44 [13]
Expense Ratio, Percent 0.41% [13]
Factors Affecting Performance [Text Block]
HOW DID THE FUND PERFORM LAST YEAR AND WHAT AFFECTED ITS PERFORMANCE?
For the twelve months ended January 31, 2026, Class A shares of Franklin Multi-Asset Moderate Growth Fund returned 13.86%. The Fund compares its performance to the Russell 3000 Index, the  Bloomberg U.S. Aggregate Index and the Composite Benchmark†, which returned 15.32%, 6.85% and 15.28%, respectively, for the same period.
PERFORMANCE HIGHLIGHTS
Top contributors to performance:
↑
Exposure to U.S. equities was the leading contributor to absolute return by virtue of weight in the portfolio and return.
↑
Asset allocation effects contributed to relative performance, due to an equity overweight (especially emerging markets exposure) and fixed income underweight.
↑
The Putnam Large Cap Value Fund was the leading contributor to relative performance at the manager level.
Top detractors from performance:
↓
Underlying manager selection was a detractor from relative performance overall, especially in U.S. equities.
↓
An underweight to international equities was also a detractor.
↓
The ClearBridge Large Cap Growth Fund and the Putnam Large Cap Growth Fund were the leading detractors from relative performance at the manager level.
Performance Past Does Not Indicate Future [Text] The Fund’s past performance is not necessarily an indication of how the Fund will perform in the future.
Line Graph [Table Text Block]
image
Average Annual Return [Table Text Block]
AVERAGE ANNUAL TOTAL RETURNS (%) Period Ended January 31, 2026
 
1 Year
5 Year
10 Year
Class A
13.86
8.90
9.20
Class A (with sales charge)
7.60
7.61
8.56
Russell 3000 Index
15.32
13.60
15.13
Bloomberg U.S. Aggregate Index
6.85
-0.20
1.88
Composite Benchmark†
15.28
8.41
10.28
[14]
No Deduction of Taxes [Text Block] The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or redemption of Fund shares.
Updated Performance Information Location [Text Block]
For current month-end performance, please call Franklin Templeton at 877-6LM-FUND/656-3863 or visit
https://www.franklintempleton.com/investments/options/mutual-funds.
Important data provider notices and terms available at www.franklintempletondatasources.com.
Net Assets $ 544,116,958
Holdings Count | $ / shares 17
Advisory Fees Paid, Amount $ 0
Investment Company Portfolio Turnover 42.00%
Additional Fund Statistics [Text Block]
KEY FUND STATISTICS (as of January 31, 2026)
Total Net Assets
$544,116,958
Total Number of Portfolio Holdings
17
Total Management Fee Paid
$0
Portfolio Turnover Rate
42%
Holdings [Text Block]
WHAT DID THE FUND INVEST IN? (as of January 31, 2026)
Portfolio Composition* (% of Total Investments)
image
 [15]
Updated Prospectus Web Address https://www.franklintempleton.com/regulatory-fund-documents
Class C  
Shareholder Report [Line Items]  
Fund Name Franklin Multi-Asset Moderate Growth Fund
Class Name Class C
Trading Symbol SCGCX
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about Franklin Multi-Asset Moderate Growth Fund for the period February 1, 2025, to January 31, 2026.
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 YEAR? (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 C1
$121
1.14%
[16]
Expenses Paid, Amount $ 121 [16]
Expense Ratio, Percent 1.14% [16]
Factors Affecting Performance [Text Block]
HOW DID THE FUND PERFORM LAST YEAR AND WHAT AFFECTED ITS PERFORMANCE?
For the twelve months ended January 31, 2026, Class C shares of Franklin Multi-Asset Moderate Growth Fund returned 13.06%. The Fund compares its performance to the Russell 3000 Index, the  Bloomberg U.S. Aggregate Index and the Composite Benchmark†, which returned 15.32%, 6.85% and 15.28%, respectively, for the same period.
PERFORMANCE HIGHLIGHTS
Top contributors to performance:
↑
Exposure to U.S. equities was the leading contributor to absolute return by virtue of weight in the portfolio and return.
↑
Asset allocation effects contributed to relative performance, due to an equity overweight (especially emerging markets exposure) and fixed income underweight.
↑
The Putnam Large Cap Value Fund was the leading contributor to relative performance at the manager level.
Top detractors from performance:
↓
Underlying manager selection was a detractor from relative performance overall, especially in U.S. equities.
↓
An underweight to international equities was also a detractor.
↓
The ClearBridge Large Cap Growth Fund and the Putnam Large Cap Growth Fund were the leading detractors from relative performance at the manager level.
Performance Past Does Not Indicate Future [Text] The Fund’s past performance is not necessarily an indication of how the Fund will perform in the future.
Line Graph [Table Text Block]
image
Average Annual Return [Table Text Block]
AVERAGE ANNUAL TOTAL RETURNS (%) Period Ended January 31, 2026
 
1 Year
5 Year
10 Year
Class C
13.06
8.11
8.44
Class C (with sales charge)
12.06
8.11
8.44
Russell 3000 Index
15.32
13.60
15.13
Bloomberg U.S. Aggregate Index
6.85
-0.20
1.88
Composite Benchmark†
15.28
8.41
10.28
[17]
No Deduction of Taxes [Text Block] The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or redemption of Fund shares.
Updated Performance Information Location [Text Block]
For current month-end performance, please call Franklin Templeton at 877-6LM-FUND/656-3863 or visit
https://www.franklintempleton.com/investments/options/mutual-funds.
Important data provider notices and terms available at www.franklintempletondatasources.com.
Net Assets $ 544,116,958
Holdings Count | $ / shares 17
Advisory Fees Paid, Amount $ 0
Investment Company Portfolio Turnover 42.00%
Additional Fund Statistics [Text Block]
KEY FUND STATISTICS (as of January 31, 2026)
Total Net Assets
$544,116,958
Total Number of Portfolio Holdings
17
Total Management Fee Paid
$0
Portfolio Turnover Rate
42%
Holdings [Text Block]
WHAT DID THE FUND INVEST IN? (as of January 31, 2026)
Portfolio Composition* (% of Total Investments)
image
 [18]
Updated Prospectus Web Address https://www.franklintempleton.com/regulatory-fund-documents
Class R  
Shareholder Report [Line Items]  
Fund Name Franklin Multi-Asset Moderate Growth Fund
Class Name Class R
Trading Symbol LLMRX
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about Franklin Multi-Asset Moderate Growth Fund for the period February 1, 2025, to January 31, 2026.
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 YEAR? (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 R1
$85
0.80%
[19],[20]
Expenses Paid, Amount $ 85 [19]
Expense Ratio, Percent 0.80% [19]
Factors Affecting Performance [Text Block]
HOW DID THE FUND PERFORM LAST YEAR AND WHAT AFFECTED ITS PERFORMANCE?
For the twelve months ended January 31, 2026, Class R shares of Franklin Multi-Asset Moderate Growth Fund returned 13.41%. The Fund compares its performance to the Russell 3000 Index, the  Bloomberg U.S. Aggregate Index and the Composite Benchmark†, which returned 15.32%, 6.85% and 15.28%, respectively, for the same period.
PERFORMANCE HIGHLIGHTS
Top contributors to performance:
↑
Exposure to U.S. equities was the leading contributor to absolute return by virtue of weight in the portfolio and return.
↑
Asset allocation effects contributed to relative performance, due to an equity overweight (especially emerging markets exposure) and fixed income underweight.
↑
The Putnam Large Cap Value Fund was the leading contributor to relative performance at the manager level.
Top detractors from performance:
↓
Underlying manager selection was a detractor from relative performance overall, especially in U.S. equities.
↓
An underweight to international equities was also a detractor.
↓
The ClearBridge Large Cap Growth Fund and the Putnam Large Cap Growth Fund were the leading detractors from relative performance at the manager level.
Performance Past Does Not Indicate Future [Text] The Fund’s past performance is not necessarily an indication of how the Fund will perform in the future.
Line Graph [Table Text Block]
image
Average Annual Return [Table Text Block]
AVERAGE ANNUAL TOTAL RETURNS (%) Period Ended January 31, 2026
 
1 Year
5 Year
10 Year
Class R
13.41
8.48
8.82
Russell 3000 Index
15.32
13.60
15.13
Bloomberg U.S. Aggregate Index
6.85
-0.20
1.88
Composite Benchmark†
15.28
8.41
10.28
[21]
No Deduction of Taxes [Text Block] The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or redemption of Fund shares.
Updated Performance Information Location [Text Block]
For current month-end performance, please call Franklin Templeton at 877-6LM-FUND/656-3863 or visit
https://www.franklintempleton.com/investments/options/mutual-funds.
Important data provider notices and terms available at www.franklintempletondatasources.com.
Net Assets $ 544,116,958
Holdings Count | $ / shares 17
Advisory Fees Paid, Amount $ 0
Investment Company Portfolio Turnover 42.00%
Additional Fund Statistics [Text Block]
KEY FUND STATISTICS (as of January 31, 2026)
Total Net Assets
$544,116,958
Total Number of Portfolio Holdings
17
Total Management Fee Paid
$0
Portfolio Turnover Rate
42%
Holdings [Text Block]
WHAT DID THE FUND INVEST IN? (as of January 31, 2026)
Portfolio Composition* (% of Total Investments)
image
 [22]
Updated Prospectus Web Address https://www.franklintempleton.com/regulatory-fund-documents
Class I  
Shareholder Report [Line Items]  
Fund Name Franklin Multi-Asset Moderate Growth Fund
Class Name Class I
Trading Symbol LLAIX
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about Franklin Multi-Asset Moderate Growth Fund for the period February 1, 2025, to January 31, 2026.
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 YEAR? (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
$15
0.14%
[23]
Expenses Paid, Amount $ 15 [23]
Expense Ratio, Percent 0.14% [23]
Factors Affecting Performance [Text Block]
HOW DID THE FUND PERFORM LAST YEAR AND WHAT AFFECTED ITS PERFORMANCE?
For the twelve months ended January 31, 2026, Class I shares of Franklin Multi-Asset Moderate Growth Fund returned 14.19%. The Fund compares its performance to the Russell 3000 Index, the  Bloomberg U.S. Aggregate Index and the Composite Benchmark†, which returned 15.32%, 6.85% and 15.28%, respectively, for the same period.
PERFORMANCE HIGHLIGHTS
Top contributors to performance:
↑
Exposure to U.S. equities was the leading contributor to absolute return by virtue of weight in the portfolio and return.
↑
Asset allocation effects contributed to relative performance, due to an equity overweight (especially emerging markets exposure) and fixed income underweight.
↑
The Putnam Large Cap Value Fund was the leading contributor to relative performance at the manager level.
Top detractors from performance:
↓
Underlying manager selection was a detractor from relative performance overall, especially in U.S. equities.
↓
An underweight to international equities was also a detractor.
↓
The ClearBridge Large Cap Growth Fund and the Putnam Large Cap Growth Fund were the leading detractors from relative performance at the manager level.
Performance Past Does Not Indicate Future [Text] The Fund’s past performance is not necessarily an indication of how the Fund will perform in the future.
Line Graph [Table Text Block]
image
Average Annual Return [Table Text Block]
AVERAGE ANNUAL TOTAL RETURNS (%) Period Ended January 31, 2026
 
1 Year
5 Year
10 Year
Class I
14.19
9.22
9.54
Russell 3000 Index
15.32
13.60
15.13
Bloomberg U.S. Aggregate Index
6.85
-0.20
1.88
Composite Benchmark†
15.28
8.41
10.28
[24]
No Deduction of Taxes [Text Block] The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or redemption of Fund shares.
Updated Performance Information Location [Text Block]
For current month-end performance, please call Franklin Templeton at 877-6LM-FUND/656-3863 or visit
https://www.franklintempleton.com/investments/options/mutual-funds.
Important data provider notices and terms available at www.franklintempletondatasources.com.
Net Assets $ 544,116,958
Holdings Count | $ / shares 17
Advisory Fees Paid, Amount $ 0
Investment Company Portfolio Turnover 42.00%
Additional Fund Statistics [Text Block]
KEY FUND STATISTICS (as of January 31, 2026)
Total Net Assets
$544,116,958
Total Number of Portfolio Holdings
17
Total Management Fee Paid
$0
Portfolio Turnover Rate
42%
Holdings [Text Block]
WHAT DID THE FUND INVEST IN? (as of January 31, 2026)
Portfolio Composition* (% of Total Investments)
image
 [25]
Updated Prospectus Web Address https://www.franklintempleton.com/regulatory-fund-documents
Class A  
Shareholder Report [Line Items]  
Fund Name Franklin Multi-Asset Conservative Growth Fund
Class Name Class A
Trading Symbol SBBAX
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about Franklin Multi-Asset Conservative Growth Fund for the period February 1, 2025, to January 31, 2026.
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 YEAR? (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 A1
$46
0.43%
[26]
Expenses Paid, Amount $ 46 [26]
Expense Ratio, Percent 0.43% [26]
Factors Affecting Performance [Text Block]
HOW DID THE FUND PERFORM LAST YEAR AND WHAT AFFECTED ITS PERFORMANCE?
For the twelve months ended January 31, 2025, Class A shares of Franklin Multi-Asset Conservative Growth Fund returned 12.09%. The Fund compares its performance to the Bloomberg U.S. Aggregate Index, the Russell 1000 Index and the Composite Benchmark†, which returned 6.85%, 15.31% and 12.80%, respectively, for the same period.
PERFORMANCE HIGHLIGHTS
Top contributors to performance:
↑
Exposure to U.S. equities was the leading contributor to absolute return by virtue of weight in the portfolio and return.
↑
Asset allocation effects contributed to relative performance, due to an equity overweight (especially emerging markets exposure) and fixed income underweight.
↑
The Putnam Large Cap Value Fund was the leading contributor to relative performance at the manager level.
Top detractors from performance:
↓
Underlying manager selection was a detractor from relative performance overall, especially in U.S. equities.
↓
An underweight to international equities was also a detractor.
↓
The ClearBridge Large Cap Growth Fund was the leading detractor from relative performance at the manager level.
Performance Past Does Not Indicate Future [Text] The Fund’s past performance is not necessarily an indication of how the Fund will perform in the future.
Line Graph [Table Text Block]
image
Average Annual Return [Table Text Block]
AVERAGE ANNUAL TOTAL RETURNS (%) Period Ended January 31, 2026
 
1 Year
5 Year
10 Year
Class A
12.09
6.56
7.61
Class A (with sales charge)
5.94
5.30
6.97
Russell 3000 Index
15.32
13.60
15.13
Bloomberg U.S. Aggregate Index
6.85
-0.20
1.88
Russell 1000 Index
15.31
14.09
15.38
Composite Benchmark†
12.80
6.06
8.09
[27]
No Deduction of Taxes [Text Block] The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or redemption of Fund shares.
Updated Performance Information Location [Text Block]
For current month-end performance, please call Franklin Templeton at 877-6LM-FUND/656-3863 or visit
https://www.franklintempleton.com/investments/options/mutual-funds.
Important data provider notices and terms available at www.franklintempletondatasources.com.
Net Assets $ 305,390,215
Holdings Count | $ / shares 17
Advisory Fees Paid, Amount $ 0
Investment Company Portfolio Turnover 37.00%
Additional Fund Statistics [Text Block]
KEY FUND STATISTICS (as of January 31, 2026)
Total Net Assets
$305,390,215
Total Number of Portfolio Holdings
17
Total Management Fee Paid
$0
Portfolio Turnover Rate
37%
Holdings [Text Block]
WHAT DID THE FUND INVEST IN? (as of January 31, 2026)
Portfolio Composition* (% of Total Investments)
image
 [28]
Updated Prospectus Web Address https://www.franklintempleton.com/regulatory-fund-documents
Class C  
Shareholder Report [Line Items]  
Fund Name Franklin Multi-Asset Conservative Growth Fund
Class Name Class C
Trading Symbol SCBCX
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about Franklin Multi-Asset Conservative Growth Fund for the period February 1, 2025, to January 31, 2026.
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 YEAR? (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 C1
$125
1.18%
[29]
Expenses Paid, Amount $ 125 [29]
Expense Ratio, Percent 1.18% [29]
Factors Affecting Performance [Text Block]
HOW DID THE FUND PERFORM LAST YEAR AND WHAT AFFECTED ITS PERFORMANCE?
For the twelve months ended January 31, 2025, Class C shares of Franklin Multi-Asset Conservative Growth Fund returned 11.24%. The Fund compares its performance to the Bloomberg U.S. Aggregate Index, the Russell 1000 Index and the Composite Benchmark†, which returned 6.85%, 15.31% and 12.80%, respectively, for the same period.
PERFORMANCE HIGHLIGHTS
Top contributors to performance:
↑
Exposure to U.S. equities was the leading contributor to absolute return by virtue of weight in the portfolio and return.
↑
Asset allocation effects contributed to relative performance, due to an equity overweight (especially emerging markets exposure) and fixed income underweight.
↑
The Putnam Large Cap Value Fund was the leading contributor to relative performance at the manager level.
Top detractors from performance:
↓
Underlying manager selection was a detractor from relative performance overall, especially in U.S. equities.
↓
An underweight to international equities was also a detractor.
↓
The ClearBridge Large Cap Growth Fund was the leading detractor from relative performance at the manager level.
Performance Past Does Not Indicate Future [Text] The Fund’s past performance is not necessarily an indication of how the Fund will perform in the future.
Line Graph [Table Text Block]
image
Average Annual Return [Table Text Block]
AVERAGE ANNUAL TOTAL RETURNS (%) Period Ended January 31, 2026
 
1 Year
5 Year
10 Year
Class C
11.24
5.76
6.81
Class C (with sales charge)
10.24
5.76
6.81
Russell 3000 Index
15.32
13.60
15.13
Bloomberg U.S. Aggregate Index
6.85
-0.20
1.88
Russell 1000 Index
15.31
14.09
15.38
Composite Benchmark†
12.80
6.06
8.09
[30]
No Deduction of Taxes [Text Block] The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or redemption of Fund shares.
Updated Performance Information Location [Text Block]
For current month-end performance, please call Franklin Templeton at 877-6LM-FUND/656-3863 or visit
https://www.franklintempleton.com/investments/options/mutual-funds.
Important data provider notices and terms available at www.franklintempletondatasources.com.
Net Assets $ 305,390,215
Holdings Count | $ / shares 17
Advisory Fees Paid, Amount $ 0
Investment Company Portfolio Turnover 37.00%
Additional Fund Statistics [Text Block]
KEY FUND STATISTICS (as of January 31, 2026)
Total Net Assets
$305,390,215
Total Number of Portfolio Holdings
17
Total Management Fee Paid
$0
Portfolio Turnover Rate
37%
Holdings [Text Block]
WHAT DID THE FUND INVEST IN? (as of January 31, 2026)
Portfolio Composition* (% of Total Investments)
image
 [31]
Updated Prospectus Web Address https://www.franklintempleton.com/regulatory-fund-documents
Class R  
Shareholder Report [Line Items]  
Fund Name Franklin Multi-Asset Conservative Growth Fund
Class Name Class R
Trading Symbol LLARX
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about Franklin Multi-Asset Conservative Growth Fund for the period February 1, 2025, to January 31, 2026.
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 YEAR? (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 R1
$84
0.79%
[32],[33]
Expenses Paid, Amount $ 84 [32]
Expense Ratio, Percent 0.79% [32]
Factors Affecting Performance [Text Block]
HOW DID THE FUND PERFORM LAST YEAR AND WHAT AFFECTED ITS PERFORMANCE?
For the twelve months ended January 31, 2025, Class R shares of Franklin Multi-Asset Conservative Growth Fund returned 11.67%. The Fund compares its performance to the Bloomberg U.S. Aggregate Index, the Russell 1000 Index and the Composite Benchmark†, which returned 6.85%, 15.31% and 12.80%, respectively, for the same period.
PERFORMANCE HIGHLIGHTS
Top contributors to performance:
↑
Exposure to U.S. equities was the leading contributor to absolute return by virtue of weight in the portfolio and return.
↑
Asset allocation effects contributed to relative performance, due to an equity overweight (especially emerging markets exposure) and fixed income underweight.
↑
The Putnam Large Cap Value Fund was the leading contributor to relative performance at the manager level.
Top detractors from performance:
↓
Underlying manager selection was a detractor from relative performance overall, especially in U.S. equities.
↓
An underweight to international equities was also a detractor.
↓
The ClearBridge Large Cap Growth Fund was the leading detractor from relative performance at the manager level.
Performance Past Does Not Indicate Future [Text] The Fund’s past performance is not necessarily an indication of how the Fund will perform in the future.
Line Graph [Table Text Block]
image
Average Annual Return [Table Text Block]
AVERAGE ANNUAL TOTAL RETURNS (%) Period Ended January 31, 2026
 
1 Year
5 Year
10 Year
Class R
11.67
6.18
7.23
Russell 3000 Index
15.32
13.60
15.13
Bloomberg U.S. Aggregate Index
6.85
-0.20
1.88
Russell 1000 Index
15.31
14.09
15.38
Composite Benchmark†
12.80
6.06
8.09
[34]
No Deduction of Taxes [Text Block] The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or redemption of Fund shares.
Updated Performance Information Location [Text Block]
For current month-end performance, please call Franklin Templeton at 877-6LM-FUND/656-3863 or visit
https://www.franklintempleton.com/investments/options/mutual-funds.
Important data provider notices and terms available at www.franklintempletondatasources.com.
Net Assets $ 305,390,215
Holdings Count | $ / shares 17
Advisory Fees Paid, Amount $ 0
Investment Company Portfolio Turnover 37.00%
Additional Fund Statistics [Text Block]
KEY FUND STATISTICS (as of January 31, 2026)
Total Net Assets
$305,390,215
Total Number of Portfolio Holdings
17
Total Management Fee Paid
$0
Portfolio Turnover Rate
37%
Holdings [Text Block]
WHAT DID THE FUND INVEST IN? (as of January 31, 2026)
Portfolio Composition* (% of Total Investments)
image
 [35]
Updated Prospectus Web Address https://www.franklintempleton.com/regulatory-fund-documents
Class I  
Shareholder Report [Line Items]  
Fund Name Franklin Multi-Asset Conservative Growth Fund
Class Name Class I
Trading Symbol LMEIX
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about Franklin Multi-Asset Conservative Growth Fund for the period February 1, 2025, to January 31, 2026.
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 YEAR? (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
$16
0.15%
[36]
Expenses Paid, Amount $ 16 [36]
Expense Ratio, Percent 0.15% [36]
Factors Affecting Performance [Text Block]
HOW DID THE FUND PERFORM LAST YEAR AND WHAT AFFECTED ITS PERFORMANCE?
For the twelve months ended January 31, 2025, Class I shares of Franklin Multi-Asset Conservative Growth Fund returned 12.39%. The Fund compares its performance to the Bloomberg U.S. Aggregate Index, the Russell 1000 Index and the Composite Benchmark†, which returned 6.85%, 15.31% and 12.80%, respectively, for the same period.
PERFORMANCE HIGHLIGHTS
Top contributors to performance:
↑
Exposure to U.S. equities was the leading contributor to absolute return by virtue of weight in the portfolio and return.
↑
Asset allocation effects contributed to relative performance, due to an equity overweight (especially emerging markets exposure) and fixed income underweight.
↑
The Putnam Large Cap Value Fund was the leading contributor to relative performance at the manager level.
Top detractors from performance:
↓
Underlying manager selection was a detractor from relative performance overall, especially in U.S. equities.
↓
An underweight to international equities was also a detractor.
↓
The ClearBridge Large Cap Growth Fund was the leading detractor from relative performance at the manager level.
Performance Past Does Not Indicate Future [Text] The Fund’s past performance is not necessarily an indication of how the Fund will perform in the future.
Line Graph [Table Text Block]
image
Average Annual Return [Table Text Block]
AVERAGE ANNUAL TOTAL RETURNS (%) Period Ended January 31, 2026
 
1 Year
5 Year
10 Year
Class I
12.39
6.87
7.90
Russell 3000 Index
15.32
13.60
15.13
Bloomberg U.S. Aggregate Index
6.85
-0.20
1.88
Russell 1000 Index
15.31
14.09
15.38
Composite Benchmark†
12.80
6.06
8.09
[37]
No Deduction of Taxes [Text Block] The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or redemption of Fund shares.
Updated Performance Information Location [Text Block]
For current month-end performance, please call Franklin Templeton at 877-6LM-FUND/656-3863 or visit
https://www.franklintempleton.com/investments/options/mutual-funds.
Important data provider notices and terms available at www.franklintempletondatasources.com.
Net Assets $ 305,390,215
Holdings Count | $ / shares 17
Advisory Fees Paid, Amount $ 0
Investment Company Portfolio Turnover 37.00%
Additional Fund Statistics [Text Block]
KEY FUND STATISTICS (as of January 31, 2026)
Total Net Assets
$305,390,215
Total Number of Portfolio Holdings
17
Total Management Fee Paid
$0
Portfolio Turnover Rate
37%
Holdings [Text Block]
WHAT DID THE FUND INVEST IN? (as of January 31, 2026)
Portfolio Composition* (% of Total Investments)
image
 [38]
Updated Prospectus Web Address https://www.franklintempleton.com/regulatory-fund-documents
Class A  
Shareholder Report [Line Items]  
Fund Name Franklin Multi-Asset Defensive Growth Fund
Class Name Class A
Trading Symbol SBCPX
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about Franklin Multi-Asset Defensive Growth Fund for the period February 1, 2025, to January 31, 2026.
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 YEAR? (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 A1
$58
0.55%
[39],[40]
Expenses Paid, Amount $ 58 [39]
Expense Ratio, Percent 0.55% [39]
Factors Affecting Performance [Text Block]
HOW DID THE FUND PERFORM LAST YEAR AND WHAT AFFECTED ITS PERFORMANCE?
For the twelve months ended January 31, 2026, Class A shares of Franklin Multi-Asset Defensive Growth Fund returned 10.14%. The Fund compares its performance to the  Bloomberg U.S. Aggregate Index, the Russell 1000 Index and the Composite Benchmark†, which returned 6.85%, 15.31% and 10.47%, respectively, for the same period.
PERFORMANCE HIGHLIGHTS
Top contributors to performance:
↑
Exposure to U.S. equities was the leading contributor to absolute return by virtue of weight in the portfolio and return.
↑
Asset allocation effects contributed to relative performance, due to an equity overweight (especially emerging markets exposure) and fixed income underweight.
↑
The Putnam Large Cap Value Fund was the leading contributor to relative performance at the manager level.
Top detractors from performance:
↓
Underlying manager selection was a detractor from relative performance overall, especially in U.S. equities.
↓
An underweight to international equities was also a detractor.
↓
The ClearBridge Large Cap Growth Fund and the Putnam Large Cap Growth Fund were the leading detractors from relative performance at the manager level.
Performance Past Does Not Indicate Future [Text] The Fund’s past performance is not necessarily an indication of how the Fund will perform in the future.
Line Graph [Table Text Block]
image
Average Annual Return [Table Text Block]
AVERAGE ANNUAL TOTAL RETURNS (%) Period Ended January 31, 2026
 
1 Year
5 Year
10 Year
Class A
10.14
4.08
5.61
Class A (with sales charge)
6.04
3.18
5.15
Bloomberg U.S. Aggregate Index
6.85
-0.20
1.88
Russell 1000 Index
15.31
14.09
15.38
Composite Benchmark†
10.47
3.85
5.93
[41]
No Deduction of Taxes [Text Block] The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or redemption of Fund shares.
Updated Performance Information Location [Text Block]
For current month-end performance, please call Franklin Templeton at 877-6LM-FUND/656-3863 or visit
https://www.franklintempleton.com/investments/options/mutual-funds.
Important data provider notices and terms available at www.franklintempletondatasources.com.
Net Assets $ 104,914,031
Holdings Count | $ / shares 17
Advisory Fees Paid, Amount $ 0
Investment Company Portfolio Turnover 32.00%
Additional Fund Statistics [Text Block]
KEY FUND STATISTICS (as of January 31, 2026)
Total Net Assets
$104,914,031
Total Number of Portfolio Holdings
17
Total Management Fee Paid
$0
Portfolio Turnover Rate
32%
Holdings [Text Block]
WHAT DID THE FUND INVEST IN? (as of January 31, 2026)
Portfolio Composition* (% of Total Investments)
image
 [42]
Updated Prospectus Web Address https://www.franklintempleton.com/regulatory-fund-documents
Class C  
Shareholder Report [Line Items]  
Fund Name Franklin Multi-Asset Defensive Growth Fund
Class Name Class C
Trading Symbol LWLAX
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about Franklin Multi-Asset Defensive Growth Fund for the period February 1, 2025, to January 31, 2026.
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 YEAR? (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 C1
$140
1.34%
[43],[44]
Expenses Paid, Amount $ 140 [43]
Expense Ratio, Percent 1.34% [43]
Factors Affecting Performance [Text Block]
HOW DID THE FUND PERFORM LAST YEAR AND WHAT AFFECTED ITS PERFORMANCE?
For the twelve months ended January 31, 2026, Class C shares of Franklin Multi-Asset Defensive Growth Fund returned 9.31%. The Fund compares its performance to the  Bloomberg U.S. Aggregate Index, the Russell 1000 Index and the Composite Benchmark†, which returned 6.85%, 15.31% and 10.47%, respectively, for the same period.
PERFORMANCE HIGHLIGHTS
Top contributors to performance:
↑
Exposure to U.S. equities was the leading contributor to absolute return by virtue of weight in the portfolio and return.
↑
Asset allocation effects contributed to relative performance, due to an equity overweight (especially emerging markets exposure) and fixed income underweight.
↑
The Putnam Large Cap Value Fund was the leading contributor to relative performance at the manager level.
Top detractors from performance:
↓
Underlying manager selection was a detractor from relative performance overall, especially in U.S. equities.
↓
An underweight to international equities was also a detractor.
↓
The ClearBridge Large Cap Growth Fund and the Putnam Large Cap Growth Fund were the leading detractors from relative performance at the manager level.
Performance Past Does Not Indicate Future [Text] The Fund’s past performance is not necessarily an indication of how the Fund will perform in the future.
Line Graph [Table Text Block]
image
Average Annual Return [Table Text Block]
AVERAGE ANNUAL TOTAL RETURNS (%) Period Ended January 31, 2026
 
1 Year
5 Year
10 Year
Class C
9.31
3.30
4.84
Class C (with sales charge)
8.31
3.30
4.84
Bloomberg U.S. Aggregate Index
6.85
-0.20
1.88
Russell 1000 Index
15.31
14.09
15.38
Composite Benchmark†
10.47
3.85
5.93
[45]
No Deduction of Taxes [Text Block] The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or redemption of Fund shares.
Updated Performance Information Location [Text Block]
For current month-end performance, please call Franklin Templeton at 877-6LM-FUND/656-3863 or visit
https://www.franklintempleton.com/investments/options/mutual-funds.
Important data provider notices and terms available at www.franklintempletondatasources.com.
Net Assets $ 104,914,031
Holdings Count | $ / shares 17
Advisory Fees Paid, Amount $ 0
Investment Company Portfolio Turnover 32.00%
Additional Fund Statistics [Text Block]
KEY FUND STATISTICS (as of January 31, 2026)
Total Net Assets
$104,914,031
Total Number of Portfolio Holdings
17
Total Management Fee Paid
$0
Portfolio Turnover Rate
32%
Holdings [Text Block]
WHAT DID THE FUND INVEST IN? (as of January 31, 2026)
Portfolio Composition* (% of Total Investments)
image
 [46]
Updated Prospectus Web Address https://www.franklintempleton.com/regulatory-fund-documents
Class C1  
Shareholder Report [Line Items]  
Fund Name Franklin Multi-Asset Defensive Growth Fund
Class Name Class C1
Trading Symbol SBCLX
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about Franklin Multi-Asset Defensive Growth Fund for the period February 1, 2025, to January 31, 2026.
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 YEAR? (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 C11
$117
1.23%
[47],[48]
Expenses Paid, Amount $ 117 [47]
Expense Ratio, Percent 1.23% [47]
Factors Affecting Performance [Text Block]
HOW DID THE FUND PERFORM LAST YEAR AND WHAT AFFECTED ITS PERFORMANCE?
For the twelve months ended January 31, 2026, Class C1 shares of Franklin Multi-Asset Defensive Growth Fund returned 9.19%. The Fund compares its performance to the  Bloomberg U.S. Aggregate Index, the Russell 1000 Index and the Composite Benchmark†, which returned 6.85%, 15.31% and 10.47%, respectively, for the same period.
PERFORMANCE HIGHLIGHTS
Top contributors to performance:
↑
Exposure to U.S. equities was the leading contributor to absolute return by virtue of weight in the portfolio and return.
↑
Asset allocation effects contributed to relative performance, due to an equity overweight (especially emerging markets exposure) and fixed income underweight.
↑
The Putnam Large Cap Value Fund was the leading contributor to relative performance at the manager level.
Top detractors from performance:
↓
Underlying manager selection was a detractor from relative performance overall, especially in U.S. equities.
↓
An underweight to international equities was also a detractor.
↓
The ClearBridge Large Cap Growth Fund and the Putnam Large Cap Growth Fund were the leading detractors from relative performance at the manager level.
Performance Past Does Not Indicate Future [Text] The Fund’s past performance is not necessarily an indication of how the Fund will perform in the future.
Line Graph [Table Text Block]
image
Average Annual Return [Table Text Block]
AVERAGE ANNUAL TOTAL RETURNS (%) Period Ended January 31, 2026
 
1 Year
5 Year
10 Year
Class C1
9.19
3.55
5.08
Class C1 (with sales charge)
8.19
3.55
5.08
Bloomberg U.S. Aggregate Index
6.85
-0.20
1.88
Russell 1000 Index
15.31
14.09
15.38
Composite Benchmark†
10.47
3.85
5.93
[49]
No Deduction of Taxes [Text Block] The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or redemption of Fund shares.
Updated Performance Information Location [Text Block]
For current month-end performance, please call Franklin Templeton at 877-6LM-FUND/656-3863 or visit
https://www.franklintempleton.com/investments/options/mutual-funds.
Important data provider notices and terms available at www.franklintempletondatasources.com.
Net Assets $ 104,914,031
Holdings Count | $ / shares 17
Advisory Fees Paid, Amount $ 0
Investment Company Portfolio Turnover 32.00%
Additional Fund Statistics [Text Block]
KEY FUND STATISTICS (as of January 31, 2026)
Total Net Assets
$104,914,031
Total Number of Portfolio Holdings
17
Total Management Fee Paid
$0
Portfolio Turnover Rate
32%
Holdings [Text Block]
WHAT DID THE FUND INVEST IN? (as of January 31, 2026)
Portfolio Composition* (% of Total Investments)
image
 [50]
Updated Prospectus Web Address https://www.franklintempleton.com/regulatory-fund-documents
Class R  
Shareholder Report [Line Items]  
Fund Name Franklin Multi-Asset Defensive Growth Fund
Class Name Class R
Trading Symbol LMLRX
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about Franklin Multi-Asset Defensive Growth Fund for the period February 1, 2025, to January 31, 2026.
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 YEAR? (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 R1
$76
0.72%
[51],[52]
Expenses Paid, Amount $ 76 [51]
Expense Ratio, Percent 0.72% [51]
Factors Affecting Performance [Text Block]
HOW DID THE FUND PERFORM LAST YEAR AND WHAT AFFECTED ITS PERFORMANCE?
For the twelve months ended January 31, 2026, Class R shares of Franklin Multi-Asset Defensive Growth Fund returned 10.01%. The Fund compares its performance to the  Bloomberg U.S. Aggregate Index, the Russell 1000 Index and the Composite Benchmark†, which returned 6.85%, 15.31% and 10.47%, respectively, for the same period.
PERFORMANCE HIGHLIGHTS
Top contributors to performance:
↑
Exposure to U.S. equities was the leading contributor to absolute return by virtue of weight in the portfolio and return.
↑
Asset allocation effects contributed to relative performance, due to an equity overweight (especially emerging markets exposure) and fixed income underweight.
↑
The Putnam Large Cap Value Fund was the leading contributor to relative performance at the manager level.
Top detractors from performance:
↓
Underlying manager selection was a detractor from relative performance overall, especially in U.S. equities.
↓
An underweight to international equities was also a detractor.
↓
The ClearBridge Large Cap Growth Fund and the Putnam Large Cap Growth Fund were the leading detractors from relative performance at the manager level.
Performance Past Does Not Indicate Future [Text] The Fund’s past performance is not necessarily an indication of how the Fund will perform in the future.
Line Graph [Table Text Block]
image
Average Annual Return [Table Text Block]
AVERAGE ANNUAL TOTAL RETURNS (%) Period Ended January 31, 2026
 
1 Year
5 Year
10 Year
Class R
10.01
3.85
5.35
Bloomberg U.S. Aggregate Index
6.85
-0.20
1.88
Russell 1000 Index
15.31
14.09
15.38
Composite Benchmark†
10.47
3.85
5.93
[53]
No Deduction of Taxes [Text Block] The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or redemption of Fund shares.
Updated Performance Information Location [Text Block]
For current month-end performance, please call Franklin Templeton at 877-6LM-FUND/656-3863 or visit
https://www.franklintempleton.com/investments/options/mutual-funds.
Important data provider notices and terms available at www.franklintempletondatasources.com.
Net Assets $ 104,914,031
Holdings Count | $ / shares 17
Advisory Fees Paid, Amount $ 0
Investment Company Portfolio Turnover 32.00%
Additional Fund Statistics [Text Block]
KEY FUND STATISTICS (as of January 31, 2026)
Total Net Assets
$104,914,031
Total Number of Portfolio Holdings
17
Total Management Fee Paid
$0
Portfolio Turnover Rate
32%
Holdings [Text Block]
WHAT DID THE FUND INVEST IN? (as of January 31, 2026)
Portfolio Composition* (% of Total Investments)
image
 [54]
Updated Prospectus Web Address https://www.franklintempleton.com/regulatory-fund-documents
Class I  
Shareholder Report [Line Items]  
Fund Name Franklin Multi-Asset Defensive Growth Fund
Class Name Class I
Trading Symbol LMGIX
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about Franklin Multi-Asset Defensive Growth Fund for the period February 1, 2025, to January 31, 2026.
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 YEAR? (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
$26
0.25%
[55],[56]
Expenses Paid, Amount $ 26 [55]
Expense Ratio, Percent 0.25% [55]
Factors Affecting Performance [Text Block]
HOW DID THE FUND PERFORM LAST YEAR AND WHAT AFFECTED ITS PERFORMANCE?
For the twelve months ended January 31, 2026, Class I shares of Franklin Multi-Asset Defensive Growth Fund returned 10.49%. The Fund compares its performance to the  Bloomberg U.S. Aggregate Index, the Russell 1000 Index and the Composite Benchmark†, which returned 6.85%, 15.31% and 10.47%, respectively, for the same period.
PERFORMANCE HIGHLIGHTS
Top contributors to performance:
↑
Exposure to U.S. equities was the leading contributor to absolute return by virtue of weight in the portfolio and return.
↑
Asset allocation effects contributed to relative performance, due to an equity overweight (especially emerging markets exposure) and fixed income underweight.
↑
The Putnam Large Cap Value Fund was the leading contributor to relative performance at the manager level.
Top detractors from performance:
↓
Underlying manager selection was a detractor from relative performance overall, especially in U.S. equities.
↓
An underweight to international equities was also a detractor.
↓
The ClearBridge Large Cap Growth Fund and the Putnam Large Cap Growth Fund were the leading detractors from relative performance at the manager level.
Performance Past Does Not Indicate Future [Text] The Fund’s past performance is not necessarily an indication of how the Fund will perform in the future.
Line Graph [Table Text Block]
image
Average Annual Return [Table Text Block]
AVERAGE ANNUAL TOTAL RETURNS (%) Period Ended January 31, 2026
 
1 Year
5 Year
10 Year
Class I
10.49
4.40
5.93
Bloomberg U.S. Aggregate Index
6.85
-0.20
1.88
Russell 1000 Index
15.31
14.09
15.38
Composite Benchmark†
10.47
3.85
5.93
[57]
No Deduction of Taxes [Text Block] The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or redemption of Fund shares.
Updated Performance Information Location [Text Block]
For current month-end performance, please call Franklin Templeton at 877-6LM-FUND/656-3863 or visit
https://www.franklintempleton.com/investments/options/mutual-funds.
Important data provider notices and terms available at www.franklintempletondatasources.com.
Net Assets $ 104,914,031
Holdings Count | $ / shares 17
Advisory Fees Paid, Amount $ 0
Investment Company Portfolio Turnover 32.00%
Additional Fund Statistics [Text Block]
KEY FUND STATISTICS (as of January 31, 2026)
Total Net Assets
$104,914,031
Total Number of Portfolio Holdings
17
Total Management Fee Paid
$0
Portfolio Turnover Rate
32%
Holdings [Text Block]
WHAT DID THE FUND INVEST IN? (as of January 31, 2026)
Portfolio Composition* (% of Total Investments)
image
 [58]
Updated Prospectus Web Address https://www.franklintempleton.com/regulatory-fund-documents
[1]
1 Excludes fees and expenses of the underlying funds in which the Fund invests.
[2]
† The Fund’s Composite Benchmark is comprised of 45% Russell 1000 Index, 20% Russell 2000 Index, 20% MSCI EAFE Index, 10% Bloomberg U.S. Aggregate Index and 5% Bloomberg U.S. High Yield—2% Issuer Cap Index.
[3]
* Does not include derivatives, except purchased options, if any.  
[4]
1 Excludes fees and expenses of the underlying funds in which the Fund invests.
[5]
† The Fund’s Composite Benchmark is comprised of 45% Russell 1000 Index, 20% Russell 2000 Index, 20% MSCI EAFE Index, 10% Bloomberg U.S. Aggregate Index and 5% Bloomberg U.S. High Yield—2% Issuer Cap Index.
[6]
* Does not include derivatives, except purchased options, if any.  
[7]
1 Excludes fees and expenses of the underlying funds in which the Fund invests.
[8]
† The Fund’s Composite Benchmark is comprised of 45% Russell 1000 Index, 20% Russell 2000 Index, 20% MSCI EAFE Index, 10% Bloomberg U.S. Aggregate Index and 5% Bloomberg U.S. High Yield—2% Issuer Cap Index.
[9]
* Does not include derivatives, except purchased options, if any.  
[10]
1 Excludes fees and expenses of the underlying funds in which the Fund invests.
[11]
† The Fund’s Composite Benchmark is comprised of 45% Russell 1000 Index, 20% Russell 2000 Index, 20% MSCI EAFE Index, 10% Bloomberg U.S. Aggregate Index and 5% Bloomberg U.S. High Yield—2% Issuer Cap Index.
[12]
* Does not include derivatives, except purchased options, if any.  
[13]
1 Excludes fees and expenses of the underlying funds in which the Fund invests.
[14]
† The Fund’s Composite Benchmark is comprised of 40% Russell 1000 Index, 15% Russell 2000 Index, 15% MSCI EAFE Index, 25% Bloomberg U.S. Aggregate Index and 5% Bloomberg U.S. High Yield—2% Issuer Cap Index.
[15]
* Does not include derivatives, except purchased options, if any.  
[16]
1 Excludes fees and expenses of the underlying funds in which the Fund invests.
[17]
† The Fund’s Composite Benchmark is comprised of 40% Russell 1000 Index, 15% Russell 2000 Index, 15% MSCI EAFE Index, 25% Bloomberg U.S. Aggregate Index and 5% Bloomberg U.S. High Yield—2% Issuer Cap Index.
[18]
* Does not include derivatives, except purchased options, if any.  
[19]
1 Excludes fees and expenses of the underlying funds in which the Fund invests.
[20]
* Reflects fee waivers and/or expense reimbursements, without which expenses would have been higher.
[21]
† The Fund’s Composite Benchmark is comprised of 40% Russell 1000 Index, 15% Russell 2000 Index, 15% MSCI EAFE Index, 25% Bloomberg U.S. Aggregate Index and 5% Bloomberg U.S. High Yield—2% Issuer Cap Index.
[22]
* Does not include derivatives, except purchased options, if any.  
[23]
1 Excludes fees and expenses of the underlying funds in which the Fund invests.
[24]
† The Fund’s Composite Benchmark is comprised of 40% Russell 1000 Index, 15% Russell 2000 Index, 15% MSCI EAFE Index, 25% Bloomberg U.S. Aggregate Index and 5% Bloomberg U.S. High Yield—2% Issuer Cap Index.
[25]
* Does not include derivatives, except purchased options, if any.  
[26]
1 Excludes fees and expenses of the underlying funds in which the Fund invests.
[27]
† The Fund’s Composite Benchmark is comprised of 28% Russell 1000 Index, 12% Russell 2000 Index, 10% MSCI EAFE Index, 43% Bloomberg U.S. Aggregate Index and 7% Bloomberg U.S. High Yield—2% Issuer Cap Index.
[28]
* Does not include derivatives, except purchased options, if any.  
[29]
1 Excludes fees and expenses of the underlying funds in which the Fund invests.
[30]
† The Fund’s Composite Benchmark is comprised of 28% Russell 1000 Index, 12% Russell 2000 Index, 10% MSCI EAFE Index, 43% Bloomberg U.S. Aggregate Index and 7% Bloomberg U.S. High Yield—2% Issuer Cap Index.
[31]
* Does not include derivatives, except purchased options, if any.  
[32]
1 Excludes fees and expenses of the underlying funds in which the Fund invests.
[33]
* Reflects fee waivers and/or expense reimbursements, without which expenses would have been higher.
[34]
† The Fund’s Composite Benchmark is comprised of 28% Russell 1000 Index, 12% Russell 2000 Index, 10% MSCI EAFE Index, 43% Bloomberg U.S. Aggregate Index and 7% Bloomberg U.S. High Yield—2% Issuer Cap Index.
[35]
* Does not include derivatives, except purchased options, if any.  
[36]
1 Excludes fees and expenses of the underlying funds in which the Fund invests.
[37]
† The Fund’s Composite Benchmark is comprised of 28% Russell 1000 Index, 12% Russell 2000 Index, 10% MSCI EAFE Index, 43% Bloomberg U.S. Aggregate Index and 7% Bloomberg U.S. High Yield—2% Issuer Cap Index.
[38]
* Does not include derivatives, except purchased options, if any.  
[39]
1 Excludes fees and expenses of the underlying funds in which the Fund invests.
[40]
* Reflects fee waivers and/or expense reimbursements, without which expenses would have been higher.
[41]
† The Fund’s Composite Benchmark is comprised of 17% Russell 1000 Index, 7% Russell 2000 Index, 6% MSCI EAFE Index, 60% Bloomberg U.S. Aggregate Index and 10% Bloomberg U.S. High Yield—2% Issuer Cap Index.
[42]
* Does not include derivatives, except purchased options, if any.  
[43]
1 Excludes fees and expenses of the underlying funds in which the Fund invests.
[44]
* Reflects fee waivers and/or expense reimbursements, without which expenses would have been higher.
[45]
† The Fund’s Composite Benchmark is comprised of 17% Russell 1000 Index, 7% Russell 2000 Index, 6% MSCI EAFE Index, 60% Bloomberg U.S. Aggregate Index and 10% Bloomberg U.S. High Yield—2% Issuer Cap Index.
[46]
* Does not include derivatives, except purchased options, if any.  
[47]
1 Excludes fees and expenses of the underlying funds in which the Fund invests.
[48]
* Reflects fee waivers and/or expense reimbursements, without which expenses would have been higher.
[49]
† The Fund’s Composite Benchmark is comprised of 17% Russell 1000 Index, 7% Russell 2000 Index, 6% MSCI EAFE Index, 60% Bloomberg U.S. Aggregate Index and 10% Bloomberg U.S. High Yield—2% Issuer Cap Index.
[50]
* Does not include derivatives, except purchased options, if any.  
[51]
1 Excludes fees and expenses of the underlying funds in which the Fund invests.
[52]
* Reflects fee waivers and/or expense reimbursements, without which expenses would have been higher.
[53]
† The Fund’s Composite Benchmark is comprised of 17% Russell 1000 Index, 7% Russell 2000 Index, 6% MSCI EAFE Index, 60% Bloomberg U.S. Aggregate Index and 10% Bloomberg U.S. High Yield—2% Issuer Cap Index.
[54]
* Does not include derivatives, except purchased options, if any.  
[55]
1 Excludes fees and expenses of the underlying funds in which the Fund invests.
[56]
* Reflects fee waivers and/or expense reimbursements, without which expenses would have been higher.
[57]
† The Fund’s Composite Benchmark is comprised of 17% Russell 1000 Index, 7% Russell 2000 Index, 6% MSCI EAFE Index, 60% Bloomberg U.S. Aggregate Index and 10% Bloomberg U.S. High Yield—2% Issuer Cap Index.
[58]
* Does not include derivatives, except purchased options, if any.