XML 251 R190.htm IDEA: XBRL DOCUMENT
v3.10.0.1

Results of Operations from Oil and Gas Producing Activities (Detail) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Jun. 30, 2018 | Jun. 30, 2017 | Jun. 30, 2016
Results of operations for oil and gas producing activities, by geographic area [Line Items] |  |  |
Oil and gas revenue | $ 7,397 | $ 6,711 | $ 6,585
Production costs | (2,134) | (2,248) | (2,472)
Exploration expenses | (549) | (480) | (296)
Depreciation, depletion, amortisation and valuation provision | (3,968) | (3,497) | (11,379)
Production taxes | (172) | (162) | (147)
Results of operations, income before accretion expense, income taxes, and royalty-related taxes, Total | 574 | 324 | (7,709)
Accretion expense | (141) | (102) | (84)
Income taxes | (1,265) | (117) | 2,439
Royalty-related taxes | (103) | (104) | (210)
Results of oil and gas producing activities | (935) | 1 | (5,564)
Australia [member] |  |  |
Results of operations for oil and gas producing activities, by geographic area [Line Items] |  |  |
Oil and gas revenue | 3,229 | 2,876 | 2,777
Production costs | (701) | (533) | (605)
Exploration expenses | (25) | (32) | (44)
Depreciation, depletion, amortisation and valuation provision | (1,045) | (814) | (720)
Production taxes | (171) | (158) | (132)
Results of operations, income before accretion expense, income taxes, and royalty-related taxes, Total | 1,287 | 1,339 | 1,276
Accretion expense | (81) | (56) | (54)
Income taxes | (418) | (361) | (465)
Royalty-related taxes | (103) | (104) | (206)
Results of oil and gas producing activities | 685 | 818 | 551
United States [member] |  |  |
Results of operations for oil and gas producing activities, by geographic area [Line Items] |  |  |
Oil and gas revenue | 3,747 | 3,479 | 3,487
Production costs | (1,312) | (1,515) | (1,705)
Exploration expenses | (270) | (242) | (128)
Depreciation, depletion, amortisation and valuation provision | (2,842) | (2,592) | (10,569)
Production taxes |  | (4) | (13)
Results of operations, income before accretion expense, income taxes, and royalty-related taxes, Total | (677) | (874) | (8,928)
Accretion expense | (46) | (32) | (23)
Income taxes | (723) | 386 | 3,047
Results of oil and gas producing activities | (1,446) | (520) | (5,904)
Other countries [member] |  |  |
Results of operations for oil and gas producing activities, by geographic area [Line Items] |  |  |
Oil and gas revenue | 421 | 356 | 321
Production costs | (121) | (200) | (162)
Exploration expenses | (254) | (206) | (124)
Depreciation, depletion, amortisation and valuation provision | (81) | (91) | (90)
Production taxes | (1) |  | (2)
Results of operations, income before accretion expense, income taxes, and royalty-related taxes, Total | (36) | (141) | (57)
Accretion expense | (14) | (14) | (7)
Income taxes | (124) | (142) | (143)
Royalty-related taxes |  |  | (4)
Results of oil and gas producing activities | $ (174) | $ (297) | $ (211)

X
- Definition Results of operations, income before accretion expense, income taxes, and royalty-related taxes. + References No definition available. + Details
Name: | bhp_ResultsOfOperationsIncomeBeforeAccretionExpenseIncomeTaxesAndRoyaltyrelatedTaxes
Namespace Prefix: | bhp_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Royalty-related taxes from oil and gas producing activities. + References No definition available. + Details
Name: | bhp_ResultsOfOperationsRoyaltyrelatedTaxes
Namespace Prefix: | bhp_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Accretion expense of asset retirement obligations related to oil and gas producing activities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 410 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c)(3) -URI http://asc.fasb.org/extlink&oid=6392692&loc=d3e7535-110849 + Details
Name: | us-gaap_ResultsOfOperationsAccretionOfAssetRetirementObligations
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Depreciation, depletion and amortization, and valuation provisions (impairments) related to oil and gas producing activities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 932 -SubTopic 235 -Section 50 -Paragraph 23 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=68064819&loc=d3e62136-109447 + Details
Name: | us-gaap_ResultsOfOperationsDepreciationDepletionAndAmortizationAndValuationProvisions
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Other costs for oil and gas producing activities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 932 -SubTopic 235 -Section 50 -Paragraph 23 -URI http://asc.fasb.org/extlink&oid=68064819&loc=d3e62136-109447 + Details
Name: | us-gaap_ResultsOfOperationsExpenseOther
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Exploration costs from oil and gas producing activities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 932 -SubTopic 235 -Section 50 -Paragraph 23 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=68064819&loc=d3e62136-109447 + Details
Name: | us-gaap_ResultsOfOperationsExplorationExpense
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_ResultsOfOperationsForOilAndGasProducingActivitiesByGeographicAreaLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Income tax expense for oil and gas producing activities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 932 -SubTopic 235 -Section 50 -Paragraph 25 -URI http://asc.fasb.org/extlink&oid=68064819&loc=d3e62259-109447 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 932 -SubTopic 235 -Section 50 -Paragraph 23 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=68064819&loc=d3e62136-109447 + Details
Name: | us-gaap_ResultsOfOperationsIncomeTaxExpense
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The results of operations for oil and gas producing activities, excluding corporate overhead and interest costs. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 932 -SubTopic 235 -Section 50 -Paragraph 26 -URI http://asc.fasb.org/extlink&oid=68064819&loc=d3e62299-109447 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 932 -SubTopic 235 -Section 50 -Paragraph 23 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=68064819&loc=d3e62136-109447 + Details
Name: | us-gaap_ResultsOfOperationsOilAndGasProducingActivitiesNetIncomeExcludingCorporateOverheadAndInterestCosts
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Production (lifting) costs from oil and gas producing activities, including but not limited to lease operating expense, production and ad valorem taxes, and transportation expense. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 932 -SubTopic 235 -Section 50 -Paragraph 23 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=68064819&loc=d3e62136-109447 + Details
Name: | us-gaap_ResultsOfOperationsProductionOrLiftingCosts
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Total revenues from oil and gas producing activities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 932 -SubTopic 235 -Section 50 -Paragraph 23 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=68064819&loc=d3e62136-109447 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 932 -SubTopic 235 -Section 50 -Paragraph 24 -URI http://asc.fasb.org/extlink&oid=68064819&loc=d3e62246-109447 + Details
Name: | us-gaap_ResultsOfOperationsRevenueFromOilAndGasProducingActivities
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | us-gaap_StatementGeographicalAxis=country_AU
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementGeographicalAxis=country_US
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementGeographicalAxis=bhp_OtherCountriesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |