NON-WHOLLY OWNED SUBSIDIARIES - Summarized Cash Flow Activities (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Disclosure of subsidiaries [line items]
Operating	$ 1,059	$ 893	$ 839
Investing	(3,174)	(1,047)	326
Financing	2,183	(4)	(868)
Non-Wholly Owned Subsidiaries
Disclosure of subsidiaries [line items]
Operating	1,292	1,076	1,041
Investing	(3,571)	(512)	312
Financing	2,395	(723)	(1,055)
U.K. regulated distribution operation
Disclosure of subsidiaries [line items]
Operating	226	293	273
Investing	(487)	(432)	344
Financing	309	101	(582)
Brazilian regulated gas transmission operation
Disclosure of subsidiaries [line items]
Operating	739	783	768
Investing	(36)	(80)	(32)
Financing	(742)	(824)	$ (473)
Global intermodal logistics operation
Disclosure of subsidiaries [line items]
Operating	327	0
Investing	(3,048)	0
Financing	$ 2,828	$ 0

The cash flows from (used in) financing activities, which are activities that result in changes in the size and composition of the contributed equity and borrowings of the entity.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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The cash flows from (used in) investing activities, which are the acquisition and disposal of long-term assets and other investments not included in cash equivalents.

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The cash flows from (used in) operating activities, which are the principal revenue-producing activities of the entity and other activities that are not investing or financing activities. [Refer: Revenue]

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Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table.

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No definition available.

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