PROVISIONS (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020
Reconciliation of changes in other provisions [abstract]
Balance, beginning of the year	$ 645	$ 504
Acquisitions through business combinations	99	23
Disposal	(12)	0
Accretion	13	17
Changes in estimates	(69)	94
Foreign exchange	(8)	7
Balance, end of the year	$ 668	$ 645

Disposals, Other Provisions

No definition available.

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- Definition

The increase in other provisions resulting from acquisitions through business combinations. [Refer: Business combinations [member]; Other provisions]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 37
-IssueDate 2021-01-01
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- Definition

The increase (decrease) in other provisions resulting from a change in discount rate. [Refer: Other provisions]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 37
-IssueDate 2021-01-01
-Paragraph 84
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- Definition

The increase (decrease) in other provisions resulting from foreign currency exchange rate changes on provisions measured in a currency different from the entity's presentation currency. [Refer: Other provisions]

+ References

+ Details

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- Definition

The increase in other provisions through adjustments arising from the passage of time. [Refer: Other provisions]

+ References

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- Definition

The amount of provisions other than provisions for employee benefits. [Refer: Provisions]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 37
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- References

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