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Expenses and Other Income - Summary of Expenses and Other Income (Parenthetical) (Detail) $ in Millions	12 Months Ended
	Jun. 30, 2022 USD ($)
Disclosure of Detailed Information About Expenses and Other Income [Line Items]
Dividends received from investments accounted for using equity method, classified as investing activities	$ 787
Carbonesdel Cerrejon Limited Liability Corporation [Member]
Disclosure of Detailed Information About Expenses and Other Income [Line Items]
Dividends received from investments accounted for using equity method, classified as investing activities	238
Completion proceeds	$ 50

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- Definition

Disclosure of detailed information about expenses and other income.

+ References

No definition available.

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- Definition

The aggregate cash flows arising from losing control of subsidiaries or other businesses, classified as investing activities. [Refer: Subsidiaries [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 7
-IssueDate 2021-01-01
-Paragraph 39
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-URIDate 2021-03-24

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- Definition

The cash inflow representing dividends received from investments that are accounted for using the equity method, classified as investing activities. [Refer: Investments accounted for using equity method; Dividends received]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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-IssueDate 2021-01-01
-Paragraph 16
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-URIDate 2021-03-24

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