XML 66 R56.htm IDEA: XBRL DOCUMENT
v3.10.0.1

Financial Risk Management - Summary of Financial Assets and Liabilities (Parenthetical) (Detail) - USD ($) $ in Millions | Dec. 31, 2018 | Jun. 30, 2018
--- | --- | ---
Disclosure of detailed information about financial instruments [line items] |  |
Other financial assets | $ 1,122 | $ 1,199
Input taxes receivable | 395 | 338
Input taxes payable | 123 | 189
BHP Foundation [member] |  |
Disclosure of detailed information about financial instruments [line items] |  |
Investments held which are restricted and not available for general use by the Group | 298 | 343
Financial assets held at fair value through profit or loss [member] | Other derivative contracts [member] | Level 3 [member] |  |
Disclosure of detailed information about financial instruments [line items] |  |
Other financial assets and liabilities | 202 | 213
Financial assets held at fair value through profit or loss [member] | Non-current other investments [member] | Level 3 [member] |  |
Disclosure of detailed information about financial instruments [line items] |  |
Other financial assets | 47 | 47
Financial assets held at fair value through profit or loss [member] | US Treasury Notes [member] | Level 1 [member] | BHP Foundation [member] |  |
Disclosure of detailed information about financial instruments [line items] |  |
Other financial assets | 94 | 108
Significant financial instruments [member] | Level 3 [member] |  |
Disclosure of detailed information about financial instruments [line items] |  |
Net asset fair value | $ 205 | $ 216

X
- Definition Input tax payable. + References No definition available. + Details
Name: | bhp_InputTaxPayable
Namespace Prefix: | bhp_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Input tax receivable. + References No definition available. + Details
Name: | bhp_InputTaxReceivable
Namespace Prefix: | bhp_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The net fair value of financial assets and financial liability. + References No definition available. + Details
Name: | bhp_NetFinancialAssetsAtFairValue
Namespace Prefix: | bhp_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Other financial asset and liabilities. + References No definition available. + Details
Name: | bhp_OtherFinancialAssetAndLiabilities
Namespace Prefix: | bhp_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The amount in the consolidated financial statements of the assets of the group to which significant restrictions (for example, statutory, contractual and regulatory restrictions) apply on the entity's ability to access or use the assets. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 12 -IssueDate 2018-01-01 -Paragraph 13 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=12&date=2018-03-01&anchor=para_13_c&doctype=Standard -URIDate 2018-03-16 + Details
Name: | ifrs-full_AssetsToWhichSignificantRestrictionsApply
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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

X
- Definition The amount of financial assets that the entity does not separately disclose in the same statement or note. [Refer: Financial assets] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2018-01-01 -Paragraph 54 -Subparagraph d -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2018-03-01&anchor=para_54_d&doctype=Standard -URIDate 2018-03-16 + Details
Name: | ifrs-full_OtherFinancialAssets
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=bhp_BhpFoundationMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfFinancialInstrumentsAxis=ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLossCategoryMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfFinancialAssetsAxis=bhp_OtherDerivativeContractMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_LevelsOfFairValueHierarchyAxis=ifrs-full_Level3OfFairValueHierarchyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfFinancialAssetsAxis=bhp_NonCurrentAssetsOtherInvestmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfFinancialAssetsAxis=bhp_USTreasuryNotesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_LevelsOfFairValueHierarchyAxis=ifrs-full_Level1OfFairValueHierarchyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfFinancialInstrumentsAxis=bhp_SignificantFinancialInstrumentsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |