COMBINED FINANCIAL HIGHLIGHTS (Details) - USD ($)		3 Months Ended		7 Months Ended
	Jan. 11, 2024	Jun. 30, 2025	Jun. 30, 2024	Aug. 02, 2024
FINANCIAL HIGHLIGHTS [Abstract]
Sponsor's fee rate	0.29%	0.19%		0.00%
Initial value of the funds assets on the basis of which fees is determined				$ 10,000,000,000
Sponsor's fee	$ 21	$ 237,309	$ 175,683
Franklin Bitcoin ETF [Member]
FINANCIAL HIGHLIGHTS [Abstract]
Sponsor's fee rate	0.29%	0.19%		0.00%
Initial value of the funds assets on the basis of which fees is determined				$ 10,000,000,000
Sponsor's fee	$ 21	$ 237,309	$ 175,683