v3.26.1
FAIR VALUE (Schedule Of Financial Assets And Liabilities At Fair Value) (Details) - USD ($)
 3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Dec. 31, 2025
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]          
Assets (liabilities), net transferred between level 1 and level 2 $ 0 $ 0 $ 0 $ 0  
Fair Value, Inputs, Level 3 [Member]          
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]          
Assets 0   0   $ 0
Liabilities 0   0   0
Millburn Multi Markets Trading L P [Member]          
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]          
Total futures and forward currency contracts 4,018,699   4,018,699   3,350,185
Total financial assets and liabilities at fair value 310,067,362   310,067,362   287,382,193
Investments in U.S. Treasury notes held in equity trading accounts as collateral 63,685,465   63,685,465   51,974,100
Investments in U.S. Treasury notes held in custody 226,412,138   226,412,138   217,165,910
Total investments in U.S. Treasury notes 290,097,603   290,097,603   269,140,010
Net unrealized appreciation on open futures and forward currency contracts     4,705,774   3,615,361
Net unrealized depreciation on open futures and forward currency contracts     (687,075)   (265,176)
Total net unrealized appreciation on open futures and forward currency contracts     4,018,699   3,350,185
Millburn Multi Markets Trading L P [Member] | Future [Member] | Exchange Traded [Member]          
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]          
Total exchange-traded futures contracts (676,998)   (676,998)   1,961,643
Millburn Multi Markets Trading L P [Member] | Forward Contracts [Member] | Over-the-Counter [Member]          
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]          
Over-the-counter forward currency contracts 4,695,697   4,695,697   1,388,542
Millburn Multi Markets Trading L P [Member] | Currencies [Member]          
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]          
Investment Owned, at Fair Value 237,525   237,525   15,923
Millburn Multi Markets Trading L P [Member] | Energies [Member]          
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]          
Investment Owned, at Fair Value (78,123)   (78,123)   4,164
Millburn Multi Markets Trading L P [Member] | Grains [Member]          
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]          
Investment Owned, at Fair Value 269,415   269,415   637,598
Millburn Multi Markets Trading L P [Member] | Interest Rates [Member]          
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]          
Investment Owned, at Fair Value 675,000   675,000   141,192
Millburn Multi Markets Trading L P [Member] | Livestock [Member]          
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]          
Investment Owned, at Fair Value 35,230   35,230   (32,050)
Millburn Multi Markets Trading L P [Member] | Metals [Member]          
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]          
Investment Owned, at Fair Value (1,319,383)   (1,319,383)   1,137,472
Millburn Multi Markets Trading L P [Member] | Softs [Member]          
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]          
Investment Owned, at Fair Value (74,241)   (74,241)   11,425
Millburn Multi Markets Trading L P [Member] | Stock Indices [Member]          
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]          
Investment Owned, at Fair Value (422,421)   (422,421)   45,919
Millburn Multi Markets Trading L P [Member] | US Treasury Notes Securities [Member]          
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]          
Investment Owned, at Fair Value 290,097,603   290,097,603   269,140,010
Millburn Multi Markets Trading L P [Member] | Money Market Funds [Member]          
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]          
Investment Owned, at Fair Value 15,951,060   15,951,060   14,891,998
Millburn Multi Markets Trading L P [Member] | Fair Value, Inputs, Level 1 [Member]          
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]          
Total futures and forward currency contracts (676,998)   (676,998)   1,961,643
Total financial assets and liabilities at fair value 305,371,665   305,371,665   285,993,651
Millburn Multi Markets Trading L P [Member] | Fair Value, Inputs, Level 1 [Member] | Future [Member] | Exchange Traded [Member]          
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]          
Total exchange-traded futures contracts (676,998)   (676,998)   1,961,643
Millburn Multi Markets Trading L P [Member] | Fair Value, Inputs, Level 1 [Member] | Currencies [Member]          
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]          
Investment Owned, at Fair Value 237,525   237,525   15,923
Millburn Multi Markets Trading L P [Member] | Fair Value, Inputs, Level 1 [Member] | Energies [Member]          
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]          
Investment Owned, at Fair Value (78,123)   (78,123)   4,164
Millburn Multi Markets Trading L P [Member] | Fair Value, Inputs, Level 1 [Member] | Grains [Member]          
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]          
Investment Owned, at Fair Value 269,415   269,415   637,598
Millburn Multi Markets Trading L P [Member] | Fair Value, Inputs, Level 1 [Member] | Interest Rates [Member]          
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]          
Investment Owned, at Fair Value 675,000   675,000   141,192
Millburn Multi Markets Trading L P [Member] | Fair Value, Inputs, Level 1 [Member] | Livestock [Member]          
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]          
Investment Owned, at Fair Value 35,230   35,230   (32,050)
Millburn Multi Markets Trading L P [Member] | Fair Value, Inputs, Level 1 [Member] | Metals [Member]          
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]          
Investment Owned, at Fair Value (1,319,383)   (1,319,383)   1,137,472
Millburn Multi Markets Trading L P [Member] | Fair Value, Inputs, Level 1 [Member] | Softs [Member]          
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]          
Investment Owned, at Fair Value (74,241)   (74,241)   11,425
Millburn Multi Markets Trading L P [Member] | Fair Value, Inputs, Level 1 [Member] | Stock Indices [Member]          
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]          
Investment Owned, at Fair Value (422,421)   (422,421)   45,919
Millburn Multi Markets Trading L P [Member] | Fair Value, Inputs, Level 1 [Member] | US Treasury Notes Securities [Member]          
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]          
Investment Owned, at Fair Value 290,097,603   290,097,603   269,140,010
Millburn Multi Markets Trading L P [Member] | Fair Value, Inputs, Level 1 [Member] | Money Market Funds [Member]          
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]          
Investment Owned, at Fair Value 15,951,060   15,951,060   14,891,998
Millburn Multi Markets Trading L P [Member] | Fair Value, Inputs, Level 2 [Member]          
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]          
Total futures and forward currency contracts 4,695,697   4,695,697   1,388,542
Total financial assets and liabilities at fair value 4,695,697   4,695,697   1,388,542
Millburn Multi Markets Trading L P [Member] | Fair Value, Inputs, Level 2 [Member] | Forward Contracts [Member] | Over-the-Counter [Member]          
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]          
Over-the-counter forward currency contracts $ 4,695,697   $ 4,695,697   $ 1,388,542