Statements of Financial Condition - USD ($)	Dec. 31, 2023	Dec. 31, 2022
Assets
Swiss Franc deposits, interest bearing	$ 190,287,878	$ 217,032,018
Receivable from accrued interest	83,838	0
Total Assets	190,371,716	217,032,018
Liabilities
Swiss Franc deposits, non-interest bearing, overdrawn	403	0
Accrued Sponsor's fee	$ 66,155	$ 73,878
Other Liability, Current, Related and Nonrelated Party Status [Extensible Enumeration]	us-gaap:RelatedPartyMember	us-gaap:RelatedPartyMember
Total Liabilities	$ 66,558	$ 73,878
Commitments and Contingent Liabilities (note 8)
Redeemable Capital Shares and Shareholders’ Equity
Redeemable Capital Shares, at redemption value, no par value, 1,800,000 and 2,250,000 issued and outstanding, respectively	190,305,158	216,958,140
Shareholders’ Equity:
Retained Earnings	0	0
Total Liabilities, Redeemable Capital Shares and Shareholders’ Equity	$ 190,371,716	$ 217,032,018