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Employee Benefits, Restructuring and Post-retirement Employee Benefits Provisions - Summary of Employee Benefits, Restructuring and Post-retirement Employee Benefits Provisions (Detail) - USD ($) $ in Millions	Jun. 30, 2021	Jun. 30, 2020
Provisions [abstract]
Employee benefits	$ 1,624	$ 1,313
Restructuring	54	34
Post-retirement employee benefits	534	547
Total provisions	2,212	1,894
Current	1,606	1,283
Non-current	$ 606	$ 611

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- Definition

Employee benefits, restructuring and post-retirement employee benefits provisions.

+ References

No definition available.

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- Definition

Employee benefits, restructuring and post-retirement employee benefits provisions, current.

+ References

No definition available.

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- Definition

Employee benefits, restructuring and post-retirement employee benefits provisions, non-current.

+ References

No definition available.

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- Definition

Provision for post-retirement employee benefits.

+ References

No definition available.

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- References

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- Definition

The amount of provisions for employee benefits. [Refer: Employee benefits expense; Provisions]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 1
-IssueDate 2020-01-01
-Paragraph 78
-Subparagraph d
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-URIDate 2020-01-01

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- Definition

The amount of provision for restructuring, such as the sale or termination of a line of business; closure of business locations in a country or region or relocation of activities from one country or region to another; changes in management structure; and fundamental reorganisations that have a material effect on the nature and focus of the entity's operations. [Refer: Other provisions]

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Name IAS
-Number 37
-IssueDate 2020-01-01
-Paragraph 70
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=37&code=ifrs-tx-2020-en-r&anchor=para_70&doctype=Standard
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