v3.26.1
COMBINED FINANCIAL HIGHLIGHTS (Tables)
 3 Months Ended
Jun. 30, 2026
COMBINED FINANCIAL HIGHLIGHTS [Abstract]  
Summary of Financial Highlights
         
    
For the Three
Months Ended
June 30, 2026
    
For the Three
Months Ended
June 30, 2025
 
           
Net asset value per Share, beginning of period
  $61.37   $41.54 
Net investment loss(a)
   (0.02)    (0.02) 
Net realized and unrealized gain (loss) on investment in gold
   (7.76)   2.30
Net change in net assets from operations(b)
   (7.78)    2.28 
Net asset value per Share, end of period
  $53.59   $43.82 
           
Total return, at net asset value(c)
   (12.68)%   5.49%
           
Ratio to average net assets(d)
          
Net investment loss
   (0.15)%   (0.15)%
Net expenses
   0.15%   0.15%
 
(a)
Calculated using average Shares outstanding.
(b)
The amount shown for a share outstanding may not agree with the change in the aggregate gains and losses on investment for the period because of the timing of transactions in the Fund’s shares in relation to fluctuating market values for the Fund’s underlying investment.
(c)
Calculated based on the change in net asset value of a Share during the period. Total return for periods of less than a year are not annualized.
(d)
Annualized.
Franklin Responsibly Sourced Gold ETF [Member]  
COMBINED FINANCIAL HIGHLIGHTS [Abstract]  
Summary of Financial Highlights
         
   
For the Three
Months Ended
June 30, 2026
   
For the Three
Months Ended
June 30, 2025
 
           
Net asset value per Share, beginning of period
  $61.37   $41.54 
Net investment loss(a)
   (0.02)    (0.02) 
Net realized and unrealized gain (loss) on investment in gold
   (7.76)    2.30 
Net change in net assets from operations(b)
   (7.78)    2.28 
Net asset value per Share, end of period
  $53.59   $43.82 
           
Total return, at net asset value(c)
   (12.68)%   5.49%
           
Ratio to average net assets(d)
          
Net investment loss
   (0.15)%   (0.15)%
Net expenses
   0.15%   0.15%
 
(a)
Calculated using average Shares outstanding.
(b)
The amount shown for a share outstanding may not agree with the change in the aggregate gains and losses on investment for the period because of the timing of transactions in the Fund’s shares in relation to fluctuating market values for the Fund’s underlying investment.
(c)
Calculated based on the change in net asset value of a Share during the period. Total return for periods of less than a year are not annualized.
(d)
Annualized.