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INVESTMENT IN ASSOCIATES AND JOINT VENTURES - Additional Information (Details)		3 Months Ended
	Aug. 04, 2022	Dec. 31, 2022 investment business	Dec. 31, 2021 investment
Disclosure Of Associates And Joint Ventures [Line Items]
Associates and joint ventures with quoted prices in an active market | investment		2	2
Brazil electricity transmission operation
Disclosure Of Associates And Joint Ventures [Line Items]
Ownership and voting Interest		15.00%
Mexico regulated gas transmission operation
Disclosure Of Associates And Joint Ventures [Line Items]
Ownership and voting Interest		13.00%
Mexico Regulated Gas Transmission Operation Two
Disclosure Of Associates And Joint Ventures [Line Items]
Ownership and voting Interest		11.00%
Regulated Natural Gas Transmission Business In Mexico
Disclosure Of Associates And Joint Ventures [Line Items]
Number of businesses | business		2
Colombian natural gas distribution operation
Disclosure Of Associates And Joint Ventures [Line Items]
Number of associates and joint ventures		4
Brazilian toll roads
Disclosure Of Associates And Joint Ventures [Line Items]
Ownership and voting Interest		45.00%
Brazilian Rail Business
Disclosure Of Associates And Joint Ventures [Line Items]
Ownership and voting Interest		11.00%
Australian port operation
Disclosure Of Associates And Joint Ventures [Line Items]
Ownership and voting Interest		13.00%
Australian Ports Operation 3
Disclosure Of Associates And Joint Ventures [Line Items]
Ownership and voting Interest		49.00%
U.S. LNG export terminal
Disclosure Of Associates And Joint Ventures [Line Items]
Ownership and voting Interest		6.00%
North American natural gas transmission operation
Disclosure Of Associates And Joint Ventures [Line Items]
Ownership and voting Interest		38.00%
North American gas storage operation
Disclosure Of Associates And Joint Ventures [Line Items]
Ownership and voting Interest		20.00%
European telecommunications infrastructure operations
Disclosure Of Associates And Joint Ventures [Line Items]
Ownership and voting Interest		21.00%
Australian data center operation
Disclosure Of Associates And Joint Ventures [Line Items]
Ownership and voting Interest		12.00%
New Zealand Data Center Operation
Disclosure Of Associates And Joint Ventures [Line Items]
Ownership and voting Interest		12.00%
India Data Center Operation
Disclosure Of Associates And Joint Ventures [Line Items]
Ownership and voting Interest		13.00%
Australian utility operation
Disclosure Of Associates And Joint Ventures [Line Items]
Ownership and voting Interest		8.00%
Australian smart meter business
Disclosure Of Associates And Joint Ventures [Line Items]
Ownership and voting Interest		13.00%
Australian Data Transmissions Business
Disclosure Of Associates And Joint Ventures [Line Items]
Proportion of voting rights held in associate	12.00%
U.S. Semiconductor Facility
Disclosure Of Associates And Joint Ventures [Line Items]
Proportion of voting rights held in associate		12.00%

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Associates and joint ventures with quoted prices in an active market

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[Line Items] for Disclosure Of Associates And Joint Ventures [Table]

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The proportion of the voting rights in an associate held by the entity. [Refer: Associates [member]]

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 27
-IssueDate 2021-01-01
-Paragraph 17
-Subparagraph b
-Clause iii
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=27&code=ifrs-tx-2021-en-r&anchor=para_17_b_iii&doctype=Standard
-URIDate 2021-03-24

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 27
-IssueDate 2021-01-01
-Paragraph 16
-Subparagraph b
-Clause iii
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=27&code=ifrs-tx-2021-en-r&anchor=para_16_b_iii&doctype=Standard
-URIDate 2021-03-24

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
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