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INTANGIBLE ASSETS - Cash Generating Units (Details) - USD ($) $ in Millions | Dec. 31, 2024 | Dec. 31, 2023
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Disclosure of information for cash-generating units [line items] |  |
Total | $ 14,521 | $ 15,845
North American residential decarbonization infrastructure operation |  |
Disclosure of information for cash-generating units [line items] |  |
Total | 3,006 | 3,267
Brazilian regulated gas transmission operation |  |
Disclosure of information for cash-generating units [line items] |  |
Total | 2,299 | 2,970
Canadian diversified midstream operation |  |
Disclosure of information for cash-generating units [line items] |  |
Total | 1,718 | 2,050
North American rail operation |  |
Disclosure of information for cash-generating units [line items] |  |
Total | 1,674 | 1,732
Indian telecom tower operation |  |
Disclosure of information for cash-generating units [line items] |  |
Total | 1,175 | 652
European residential decarbonization infrastructure business |  |
Disclosure of information for cash-generating units [line items] |  |
Total | 1,196 | 1,198
Brazil electricity transmission operation |  |
Disclosure of information for cash-generating units [line items] |  |
Total | 1,023 | 505
Global intermodal logistics operation |  |
Disclosure of information for cash-generating units [line items] |  |
Total | 577 | 704
U.K. wireless infrastructure operation |  |
Disclosure of information for cash-generating units [line items] |  |
Total | 549 | 563
North American retail colocation data center operations |  |
Disclosure of information for cash-generating units [line items] |  |
Total | 454 | 132
U.K. ports operation |  |
Disclosure of information for cash-generating units [line items] |  |
Total | 267 | 272
Other |  |
Disclosure of information for cash-generating units [line items] |  |
Total | $ 583 | $ 1,800

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