Intangible Assets - Summary of Intangible Assets (Detail) - USD ($) $ in Millions	12 Months Ended
Jun. 30, 2018	Jun. 30, 2017
Disclosure of reconciliation of changes in intangible assets and goodwill [Line Items]
At the beginning of the financial year	$ 3,968	$ 4,119
Additions	50	81
Amortisation for the year	(197)	(195)
Impairments for the year	(2,353)	(33)
Disposals	(23)	(4)
Transferred to assets held for sale	(667)
At the end of the financial year	778	3,968
Cost [member]
Disclosure of reconciliation of changes in intangible assets and goodwill [Line Items]
At the beginning of the financial year	4,991
At the end of the financial year	1,912	4,991
Accumulated depreciation, amortisation and impairment [member]
Disclosure of reconciliation of changes in intangible assets and goodwill [Line Items]
At the beginning of the financial year	(1,023)
At the end of the financial year	(1,134)	(1,023)
Goodwill [member]
Disclosure of reconciliation of changes in intangible assets and goodwill [Line Items]
At the beginning of the financial year	3,269	3,273
Impairments for the year	(2,339)
Disposals	(16)	(4)
Transferred to assets held for sale	(667)
At the end of the financial year	247	3,269
Goodwill [member] \| Cost [member]
Disclosure of reconciliation of changes in intangible assets and goodwill [Line Items]
At the beginning of the financial year	3,269
At the end of the financial year	247	3,269
Other intangibles [member]
Disclosure of reconciliation of changes in intangible assets and goodwill [Line Items]
At the beginning of the financial year	699	846
Additions	50	81
Amortisation for the year	(197)	(195)
Impairments for the year	(14)	(33)
Disposals	(7)
At the end of the financial year	531	699
Other intangibles [member] \| Cost [member]
Disclosure of reconciliation of changes in intangible assets and goodwill [Line Items]
At the beginning of the financial year	1,722
At the end of the financial year	1,665	1,722
Other intangibles [member] \| Accumulated depreciation, amortisation and impairment [member]
Disclosure of reconciliation of changes in intangible assets and goodwill [Line Items]
At the beginning of the financial year	(1,023)
At the end of the financial year	$ (1,134)	$ (1,023)

Additions intangible assets and goodwill.

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- Definition

The amount of amortisation of intangible assets other than goodwill. [Refer: Depreciation and amortisation expense; Intangible assets other than goodwill]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 38
-IssueDate 2017-01-01
-Paragraph 118
-Subparagraph e
-Clause vi
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=38&date=2017-03-01&anchor=para_118_e_vi&doctype=Standard
-URIDate 2017-03-09

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The decrease in intangible assets and goodwill resulting from classification as held for sale or inclusion in a disposal group classified as held for sale. [Refer: Disposal groups classified as held for sale [member]; Intangible assets and goodwill]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 38
-IssueDate 2017-01-01
-Paragraph 118
-Subparagraph e
-Clause ii
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=38&date=2017-03-01&anchor=para_118_e_ii&doctype=Standard
-URIDate 2017-03-09

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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.

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The decrease in intangible assets and goodwill resulting from disposals. [Refer: Intangible assets and goodwill]

+ References

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+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 38
-IssueDate 2017-01-01
-Paragraph 118
-Subparagraph e
-Clause iv
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-URIDate 2017-03-09

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- Definition

The amount of intangible assets and goodwill held by the entity. [Refer: Goodwill; Intangible assets other than goodwill]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2017-01-01
-Paragraph 55
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2017-03-01&anchor=para_55&doctype=Standard
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