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Interests in Joint Operations - Summary of Assets Held in Joint Operations (Parenthetical) (Detail) - USD ($) $ in Millions	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2016
Disclosure of significant joint operations [Line Items]
Assets	$ 111,993	$ 117,006	$ 118,953
Discontinued Operations - Onshore US Cash Generating Units [Member]
Disclosure of significant joint operations [Line Items]
Assets		$ 14,408

X

- Definition

The amount of resources: (a) controlled by the entity as a result of past events; and (b) from which future economic benefits are expected to flow to the entity.

+ References

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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.

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