Combined Statements of Assets and Liabilities (Unaudited) [Abstract] Total assets Total liabilities Net assets Net assets, beginning of period Net assets, end of period Legal Entity [Axis] Combined Schedule of Investments [Abstract] Crypto Asset [Axis] Net assets, Fair Value as a % of Net Assets Combined Statements of Operations [Abstract] Total expenses Net investment loss Net investment loss Net realized and change in unrealized appreciation (depreciation) on investment in bitcoin Net increase (decrease) in net assets resulting from operations Net increase (decrease) in net assets resulting from operations Combined Statements of Cash Flows [Abstract] Net cash provided by (used in) operating activities Net cash provided by (used in) financing activities Net increase in cash Cash, beginning of period Cash, end of period Combined Statements of Changes in Net Assets (Unaudited) [Abstract] Net increase (decrease) in net assets from capital Share transactions ORGANIZATION [Abstract] SIGNIFICANT ACCOUNTING POLICIES [Abstract] Beginning Balance, Shares (in Shares) Ending Balance, Shares (in Shares) Shares outstanding (in Shares) Beginning Balance, Amount Ending Balance, Amount INVESTMENT IN BITCOIN [Abstract] Beginning Balance, Quantity (in Bitcoin) Ending Balance, Quantity (in Bitcoin) Beginning Balance, Amount Ending Balance, Amount Investment in bitcoin, at fair value Total investments, Fair Value RELATED PARTIES [Abstract] CONCENTRATION OF RISK [Abstract] COMBINED FINANCIAL HIGHLIGHTS [Abstract] Net asset value per Share, beginning of period (in Dollars per share) Net asset value per Share, end of period (in Dollars per share) Net asset value per Share (in Dollars per share) Net change in net assets from operations (in Dollars per share) COMMITMENTS AND CONTINGENCIES [Abstract] INDEMNIFICATION [Abstract] OPERATING SEGMENTS [Abstract] SUBSEQUENT EVENTS [Abstract] Document Type Document Quarterly Report Document Period End Date Document Transition Report Entity File Number Entity Registrant Name Entity Incorporation, State or Country Code Entity Tax Identification Number Entity Address, Address Line One Entity Address, City or Town Entity Address, State or Province Entity Address, Postal Zip Code City Area Code Local Phone Number Title of 12(b) Security Trading Symbol Security Exchange Name Entity Current Reporting Status Entity Interactive Data Current Entity Filer Category Entity Small Business Entity Emerging Growth Company Entity Ex Transition Period Entity Shell Company Entity Common Stock, Shares Outstanding Entity Central Index Key Amendment Flag Document Fiscal Year Focus Document Fiscal Period Focus Current Fiscal Year End Date Assets Investment in bitcoin, at cost Total investments, Cost Liabilities Sponsor's fee payable Notes Payable, Related Party, Type [Extensible Enumeration] Commitments and contingencies (Note 7) Shares issued (in Shares) Shares, no par value (in Dollars per share) Shares authorized, unlimited Quantity of Bitcoin (in Bitcoin) Total investments, Fair Value as a % of Net Assets Less liabilities, Fair Value Less liabilities, Fair Value as a % of Net Assets Expenses Sponsor’s fee Net realized gain (loss) from bitcoin sold for the redemption of Shares and sold to pay expenses Net realized gain (loss) on investment in bitcoin Net realized gain (loss) on investment in bitcoin Net realized gain (loss) from bitcoin sold for the redemption of Shares and sold to pay expenses, Amount Net change in unrealized appreciation (depreciation) on investment in bitcoin Net change in unrealized appreciation (depreciation) on investment in bitcoin Net change in unrealized appreciation (depreciation) on investment in bitcoin, Amount Net increase (decrease) in net assets per Share (in Dollars per share) Cash Flows from Operating Activities: Adjustments to reconcile net increase (decrease) in net assets resulting from operations to net cash provided by (used in) operating activities: Sales of bitcoin Change in operating assets and liabilities: Sponsor’s fee payable Cash Flows from Financing Activities: Proceeds from issuance of Shares Cash Cash Flows from Operating Activities: Operations: Net change in unrealized appreciation (depreciation) on investment in bitcoin Increase (decrease) in net assets from capital Share transactions: Contributions for Shares issued Creation of Shares, Amount Less waiver Purchases of bitcoin Payments on Shares redeemed Distributions for Shares redeemed Franklin Bitcoin ETF [Member] Bitcoin [Member] ORGANIZATION SIGNIFICANT ACCOUNTING POLICIES Summary of Changes in Shares Creation of Shares, Shares (in Shares) Creation of Shares (in Shares) INVESTMENT IN BITCOIN Changes in Quantity of Bitcoin Held Schedule of Changes in Quantity of Bitcoin Held Bitcoin purchased for the creation of Shares, Quantity (in Bitcoin) Bitcoin purchased for the creation of Shares, Amount RELATED PARTIES CONCENTRATION OF RISK COMBINED FINANCIAL HIGHLIGHTS Summary of Per Share Performance Net investment loss (in Dollars per share) Net realized and unrealized gain (loss) on investment in bitcoin (in Dollars per share) Total return, at net asset value Ratio to average net assets(d) Net investment loss Gross expenses Net expenses COMMITMENTS AND CONTINGENCIES INDEMNIFICATION OPERATING SEGMENTS SUBSEQUENT EVENTS Redemption of Shares, Shares (in Shares) Redemption of Shares (in Shares) Redemption of Shares, Amount Bitcoin sold for the redemption of Shares, Quantity (in Bitcoin) Bitcoin sold for the redemption of Shares, Amount Principal on bitcoin sales to pay expenses, Quantity (in Bitcoin) Principal on bitcoin sales to pay expenses, Amount Statistical Measurement [Axis] Related and Nonrelated Parties [Axis] Rule 10b5-1 Arrangement Adopted Non-Rule 10b5-1 Arrangement Adopted Rule 10b5-1 Arrangement Terminated Non-Rule 10b5-1 Arrangement Terminated Threshold multiples in which shares are issued Ordinary legal fees and expenses assumed by the sponsor Sponsor's fee rate Accrued Sponsor's fee Extraordinary or non-routine expenses Number of business days to transfer ownership of Bitcoin Number of business days to transfer ownership of Bitcoin Number of shares held by related party (in Shares) Number of operating segments Basis of Presentation Calculation of NAV and NAV per Share Valuation of Bitcoin Fees, Expenses and Realized Gains (Losses) Bitcoin Receivable and Payable Income Taxes Creations and Redemptions of Shares Maximum [Member] Franklin Holdings, LLC [Member] Entity [Domain] Statement [Table] Statement [Line Items] Crypto Asset [Domain] Schedule of Investments [Table] Combined Schedule of Investments [Abstract] Combined Statements of Cash Flows [Abstract] Combined Statements of Changes in Net Assets (Unaudited) [Abstract] Consolidation, Less-than-Wholly-Owned Subsidiary, Parent Ownership Interest, Effect of Change [Table] ORGANIZATION [Abstract] Significant Accounting Policies [Table] SIGNIFICANT ACCOUNTING POLICIES [Abstract] Crypto Asset, Activity [Table] INVESTMENT IN BITCOIN [Abstract] Schedule of Related Party Transactions, by Related Party [Table] RELATED PARTIES [Abstract] Concentration Risk [Table] CONCENTRATION OF RISK [Abstract] Investment Company, Financial Highlights [Table] COMBINED FINANCIAL HIGHLIGHTS [Abstract] Commitments And Contingent Liabilities [Table] COMMITMENTS AND CONTINGENCIES [Abstract] Indemnification [Table] INDEMNIFICATION [Abstract] Schedule of Segment Reporting Information, by Segment [Table] OPERATING SEGMENTS [Abstract] Subsequent Event [Table] SUBSEQUENT EVENTS [Abstract] Accounting Policies, by Policy (Policies) [Table] Accounting Policies, by Policy (Policies) [Line Items] SIGNIFICANT ACCOUNTING POLICIES [Abstract] Investment Company, Financial Highlights Table] Statistical Measurement [Domain] Related and Nonrelated Parties [Domain] Trading Arrangements, by Individual [Table] Carrying value as of the balance sheet date of obligations incurred through that date and payable for certain management support and administrative oversight services. Number of restricted and unrestricted crypto asset units held. Excludes crypto asset units held for platform user. Number of restricted and unrestricted crypto asset units purchased. Excludes crypto asset units held for platform user. Number of restricted and unrestricted crypto asset units sold. Excludes crypto asset units held for platform user. Amount of decrease in crypto asset from payment for services and expenses. Excludes crypto asset held for platform user. Disclosure of accounting policy for crypto asset receivable and payable. Fees and expenses which are unexpected or unusual in nature, such as legal claims and liabilities and litigation costs or indemnification or other unanticipated expenses. Fees expenses and realized gain loss. Increase (decrease) in net asset value from operation per share. The ordinary legal fees and expenses incurred, assumed by the Sponsor in exchange for the Sponsor's fee. Percentage of investment owned to net assets after deducting liabilities. Net realized and unrealized gain loss on investment. The number of business days required for the transfer of Bitcoin ownership Number of business days to transfer ownership of crypto asset. Number of shares held by related party. Summary of changes in the shares issued and outstanding. Threshold multiples in which shares are issued. Bitcoin (BTC) is a cryptocurrency (a virtual currency) designed to act as money and a form of payment outside the control of any one person, group, or entity. The Franklin Bitcoin ETF series of the Franklin Templeton Digital Holdings Trust. Franklin Holdings, LLC. Related Party [Member] City Area Code Number of Operating Segments Entity Address, City or Town Entity Small Business Assets [Abstract] Franklin Bitcoin ETFMember Insider Trading Arrangements [Line Items] Notes Payable, Related Party [Extensible Enumeration] Investment Company, Investment Income (Loss) Ratio Investment Company, Net Asset Value, Per Share, Period Increase (Decrease) Crypto Asset, Unrealized Gain (Loss), Operating and Nonoperating Related Party Transactions Disclosure [Text Block] Number Of Business Days To Transfer Ownership Of Bitcoin Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Period Increase (Decrease), Including Exchange Rate Effect and Discontinued Operation [Abstract] Non-Rule 10b5-1 Arrangement Terminated [Flag] Unrealized Gain (Loss), Investment and Derivative, Operating, after Tax Significant Accounting Policies Line Items Cash and Cash Equivalent [Abstract] Cash Provided by (Used in) Operating Activity, Including Discontinued Operation Crypto Asset, Fair Value Payments for Repurchase of Equity Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation Crypto Asset, Activity [Line Items] Local Phone Number Basis of Accounting, Policy [Policy Text Block] Increase Decrease In Net Assets From Operation Per Share Stock Issued During Period, Value, New Issues Fair Value Measurement, Policy [Policy Text Block] Concentration Risk Disclosure [Text Block] Threshold Multiples In Which Shares Are Issued Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items] Noninvestment Assets Less Noninvestment Liabilities Entity Common Stock, Shares Outstanding Crypto Asset Number Of Units Sold For Service Stock Issued During Period, Shares, New Issues Investment Company, Capital Share Transaction, Increase (Decrease) Segment Reporting [Line Items] Entity Ex Transition Period Title of 12(b) Security Nature of Operations [Text Block] Fees Expenses And Realized Gain Loss Policy Text Block Noninvestment Asset Less Noninvestment Liability, Percent of Net Asset Investment Company, Expense Ratio after Incentive Allocation Crypto Asset, Cost Crypto Asset Receivable And Payable Policy Text Block Schedule of Investments [Line Items] Accounting Policies By Policy Line Items Assets Liabilities Equity, Attributable to Parent Management and Service Fees, Base Rate Number Of Shares Held By Related Party Net Asset Value Per Share Legal Fees And Expenses Assumed By Sponsor Current Fiscal Year End Date Subsequent Events [Text Block] Entity Address, State or Province Rule 10b5-1 Arrangement Terminated [Flag] Subsequent Event [Line Items] Entity Shell Company Document Fiscal Year Focus Security Exchange Name Management Fee Payable Cash Provided by (Used in) Operating Activity, Including Discontinued Operation [Abstract] Crypto Asset Number Of Units Purchased Crypto Asset Number Of Units Sold Segment Reporting [Text Block] Earnings Per Share, Policy [Policy Text Block] Concentration Risk [Line Items] Increase (Decrease) in Management Fee Payable Entity Current Reporting Status Entity Emerging Growth Company Proceeds from Disposition of Investment, Operating Activity Franklin Holdings LLCMember Entity Address, Postal Zip Code Extraordinary Or Non Routine Expenses Crypto Asset, Realized Gain (Loss), Operating and Nonoperating Document Fiscal Period Focus Contingencies Disclosure [Text Block] Shares, Issued Rule 10b5-1 Arrangement Adopted [Flag] Stock Redeemed or Called During Period, Shares Cash Flows From Operating Activities Abstract Net Investment Income Document Transition Report Net Assets Percentage Of Net Assets Value Stockholders' Equity, Policy [Policy Text Block] Investment Company, Investment Income (Loss) from Operations, Per Share Net Income (Loss) Attributable to Parent Net Assets Common Stock, No Par Value Cash Provided by (Used in) Financing Activity, Including Discontinued Operation Investment Company, Expense, after Reduction of Fee Waiver and Reimbursement [Abstract] Investment Company, Expense, after Reduction of Fee Waiver and Reimbursement Document Quarterly Report Summary Of Changes In The Shares Issued And Outstanding Table Text Block Crypto Asset, Activity [Table Text Block] Payment for Purchase, Investment, Operating Activity Ratio To Average Net Assets Abstract Investment Company, Expense Offset Arrangement Investment Company, Total Return Proceeds from Issuance or Sale of Equity Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Period Increase (Decrease), Including Exchange Rate Effect and Discontinued Operation Entity Incorporation, State or Country Code Entity Tax Identification Number Entity Address, Address Line One Common Stock, Shares Authorized, Unlimited [Fixed List] Income Tax, Policy [Policy Text Block] Maximum [Member] Bitcoin Member Non-Rule 10b5-1 Arrangement Adopted [Flag] Crypto Asset, Realized and Unrealized Gain (Loss), Operating and Nonoperating Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity, Increase (Decrease) in Operating Capital [Abstract] Crypto Asset, Purchase Document Type Entity File Number Crypto Asset, Payment for Service Amendment Flag Sponsor Fees Commitments and Contingencies Disclosure [Text Block] Loss Contingencies [Line Items] Investment Company, Financial Highlights [Table Text Block] Document Period End Date Interest Income, Operating [Abstract] Crypto Asset Number Of Units Held Crypto Asset, Sale Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity [Abstract] Entity Interactive Data Current Stock Repurchased and Retired During Period, Value Shares, Outstanding Stock Redeemed or Called During Period, Value Crypto Asset [Text Block] Crypto Asset, Number of Units Entity Filer Category Commitments And Contingent Liabilities Line Items Entity Central Index Key Liabilities [Abstract] Investment Company, Expense Ratio before Incentive Allocation Net Realized And Unrealized Gain Loss On Investment Investment Owned, Net Assets, Percentage Investment Company, Financial Highlights [Text Block] Related Party Transaction [Line Items] Significant Accounting Policies [Text Block] Number Of Business Days To Transfer Ownership Of Crypto Asset Trading Symbol Investment Company, Capital Share Transaction, Increase (Decrease) [Abstract] Entity Registrant Name Accrued Sponsor Fee Commitments and Contingencies Investment Company, Financial Highlights [Line Items]