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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) | 9 Months Ended
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Sep. 30, 2019 USD ($) shares
Unrecognized Tax Benefits, Income Tax Penalties and Interest Expense | $ 0
Number of Units Per Baskets | shares | 50,000
Transaction Fee | $ 350
Redemption Baskets [Member] |
Transaction Fee | $ 350

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Namespace Prefix: | bno_
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Balance Type: | na
Period Type: | instant

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- Definition A description of what the Transaction fee during the period. + References No definition available. + Details
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Namespace Prefix: | bno_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Definition Amount of expense for interest on an underpayment of income taxes and penalties related to a tax position claimed or expected to be claimed in the tax return. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32718-109319 + Details
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- Details
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Balance Type: |
Period Type: |