v3.26.1
COMBINED FINANCIAL HIGHLIGHTS (Tables)
 12 Months Ended
Mar. 31, 2026
COMBINED FINANCIAL HIGHLIGHTS [Abstract]  
Summary of Financial Highlights
         
    For the Year
Ended
March 31, 2026 		    For the Year
Ended
March 31, 2025 		 
           
Net asset value per Share, beginning of year
 $41.54   $29.57 
Net investment loss(a)
  (0.08)    (0.05) 
Net realized and unrealized gain (loss) on investment in gold
  19.91    12.02 
Net change in net assets from operations(b)
  19.83    11.97 
Net asset value per Share, end of year
 $61.37   $41.54 
           
Total return, at net asset value(c)
  47.74%   40.48%
           
Ratio to average net assets
         
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.
Franklin Responsibly Sourced Gold ETF [Member]  
COMBINED FINANCIAL HIGHLIGHTS [Abstract]  
Summary of Financial Highlights
         
     For the Year
Ended
March 31, 2026 		     For the Year
Ended
March 31, 2025 		 
           
Net asset value per Share, beginning of year
 $41.54   $29.57 
Net investment loss(a)
  (0.08)    (0.05) 
Net realized and unrealized gain (loss) on investment in gold
  19.91    12.02 
Net change in net assets from operations(b)
  19.83    11.97 
Net asset value per Share, end of year
 $61.37   $41.54 
           
Total return, at net asset value(c)
  47.74%   40.48%
           
Ratio to average net assets
         
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.