XML 39 R24.htm IDEA: XBRL DOCUMENT
v3.21.1

ORGANIZATION AND BUSINESS (Details) | 1 Months Ended | 3 Months Ended |  |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | ---
Jun. 02, 2010 USD ($) $ / shares shares | Mar. 31, 2021 USD ($) contract $ / shares shares | Dec. 31, 2020 $ / shares | Jun. 11, 2020 shares | Apr. 20, 2020 shares | Mar. 31, 2020 $ / shares | Dec. 31, 2019 $ / shares | May 31, 2010 shares
Number of successive valuation days |  | 30 days |  |  |  |  |  |
Average daily percentage change in the price of the Benchmark Futures Contract considered |  | 10.00% |  |  |  |  |  |
Units issued during period to authorized purchasers through distributors |  | 50,000 |  |  |  |  |  |
Transaction fee | $ |  | $ 350 |  |  |  |  |  |
Initially registered units of entity with sec |  |  |  |  |  |  |  | 50,000,000
Net asset value per unit | $ / shares | $ 50.00 | $ 15.84 | $ 12.91 |  |  | $ 7.97 | $ 20.91 |
Initial stock units issued | 200,000 |  |  |  |  |  |  |
Initial units value issued | $ | $ 10,000,000 |  |  |  |  |  |  |
Total units registered of entity |  | 250,000,000 |  | 150,000,000 | 50,000,000 |  |  |
Number of units per baskets |  | 50,000 |  |  |  |  |  |
ICE Brent Crude Oil Futures CO December 2019 Contracts Expiring October 2019 [Member] |  |  |  |  |  |  |  |
Number of Contracts | contract |  | 5,278 |  |  |  |  |  |

X
- Definition Average daily percentage change in the price of the Benchmark Futures Contract considered for determining the average daily percentage change in the fund's NAV for achieving the entity's investment objective. + References No definition available. + Details
Name: | bno_AverageDailyPercentageChangeInPriceOfBenchmarkFuturesContractConsidered
Namespace Prefix: | bno_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Total number of initial units of an entity that have been issued so reported as of the period. + References No definition available. + Details
Name: | bno_InitialStockUnitsIssued
Namespace Prefix: | bno_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the initial value issued during the period. + References No definition available. + Details
Name: | bno_InitialUnitsValueIssued
Namespace Prefix: | bno_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Initially Registered Units of Entity With SEC based on during period. + References No definition available. + Details
Name: | bno_InitiallyRegisteredUnitsOfEntityWithSec
Namespace Prefix: | bno_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition Net asset value per unit. + References No definition available. + Details
Name: | bno_NetAssetValuePerUnit
Namespace Prefix: | bno_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number of successive valuation days over which the average daily percentage change in the fund's NAV will be considered for achieving the entity's investment objective, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
Name: | bno_NumberOfSuccessiveValuationDays
Namespace Prefix: | bno_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of Units Per Baskets. + References No definition available. + Details
Name: | bno_NumberOfUnitsPerBaskets
Namespace Prefix: | bno_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition The total units of the entity registered under the Securities and Exchange commission reported as of the period. + References No definition available. + Details
Name: | bno_TotalUnitsRegisteredOfEntity
Namespace Prefix: | bno_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

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

X
- Definition Units issuers during period to authorized purchasers of face-amount certificates and registered investment companies. + References No definition available. + Details
Name: | bno_UnitsIssuedDuringPeriodToAuthorizedPurchasersThroughDistributors
Namespace Prefix: | bno_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Balance held at close of period in number of contracts. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 946 -SubTopic 320 -Section S99 -Paragraph 6 -Subparagraph (SX 210.12-14.Column B) -URI http://asc.fasb.org/extlink&oid=120401592&loc=d3e611322-123010 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 946 -SubTopic 320 -Section S99 -Paragraph 3 -Subparagraph (SX 210.12-12B(Column B)) -URI http://asc.fasb.org/extlink&oid=120401592&loc=d3e611197-123010 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 946 -SubTopic 320 -Section S99 -Paragraph 1 -Subparagraph (SX 210.12-12.Column B) -URI http://asc.fasb.org/extlink&oid=120401592&loc=d3e611133-123010 + Details
Name: | us-gaap_InvestmentOwnedBalanceContracts
Namespace Prefix: | us-gaap_
Data Type: | xbrli:decimalItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=bno_IceBrentCrudeOilFuturesCoDecember2019ContractsExpiringOctober2019Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |