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ACQUISITION OF BUSINESSES - Additional Information (Details) - USD ($) $ in Millions |  |  |  |  | 12 Months Ended
--- | --- | --- | --- | --- | ---
Apr. 29, 2025 | Dec. 23, 2024 | Sep. 12, 2024 | Jan. 12, 2024 | Dec. 31, 2024
Disclosure of detailed information about business combination [line items] |  |  |  |  |
Business acquisition, proforma revenue |  |  |  |  | $ 850
Business acquisition, proforma income |  |  |  |  | $ 110
Brazilian electricity transmission operation |  |  |  |  |
Disclosure of detailed information about business combination [line items] |  |  |  |  |
Percentage of voting equity interests acquired | 15.00% | 15.00% |  |  |
Cash | $ 45 | $ 22 |  |  |
Total consideration | $ 179 | $ 55 |  |  |
Proportion of ownership interest in subsidiary | 31.00% | 31.00% |  |  |
Intangible assets | $ 1,330 | $ 619 |  |  |
Identifiable assets acquired (liabilities assumed) | 179 | 55 |  |  |
Brazilian electricity transmission operation | Mantiqueira Consortium |  |  |  |  |
Disclosure of detailed information about business combination [line items] |  |  |  |  |
Total consideration | $ 145 |  |  |  |
Proportion of ownership interest in subsidiary | 100.00% |  |  |  |
Brazilian electricity transmission operation | Chimarrão Consortium |  |  |  |  |
Disclosure of detailed information about business combination [line items] |  |  |  |  |
Total consideration |  | $ 72 |  |  |
Proportion of ownership interest in subsidiary |  | 100.00% |  |  |
Indian telecom tower operation |  |  |  |  |
Disclosure of detailed information about business combination [line items] |  |  |  |  |
Percentage of voting equity interests acquired |  |  | 16.00% |  |
Cash |  |  | $ 2,041 |  |
Total consideration |  |  | 2,041 |  |
Equity funded consideration |  |  | 140 |  |
Acquisition-related costs recognised as expense for transaction recognised separately from acquisition of assets and assumption of liabilities in business combination |  |  | 5 |  |
Property, plant and equipment |  |  | 1,785 |  |
Lease assets as of acquisition date |  |  | 800 |  |
Intangible assets |  |  | $ 582 |  |
Useful life measured as period of time, intangible assets other than goodwill |  |  | 20 years |  |
Identifiable assets acquired (liabilities assumed) |  |  | $ 2,041 |  |
Indian telecom tower operation | ATC India Consortium |  |  |  |  |
Disclosure of detailed information about business combination [line items] |  |  |  |  |
Total consideration |  |  | $ 800 |  |
Cyxtera core bata center portfolio |  |  |  |  |
Disclosure of detailed information about business combination [line items] |  |  |  |  |
Percentage of voting equity interests acquired |  |  |  | 29.00% |
Cash |  |  |  | $ 803 |
Total consideration |  |  |  | 803 |
Acquisition-related costs recognised as expense for transaction recognised separately from acquisition of assets and assumption of liabilities in business combination |  |  |  | 50 |
Property, plant and equipment |  |  |  | 2,334 |
Intangible assets |  |  |  | 379 |
Gain recognised in bargain purchase transaction |  |  |  | 554 |
Identifiable assets acquired (liabilities assumed) |  |  |  | 1,357 |
Cyxtera core bata center portfolio | Land and equipment |  |  |  |  |
Disclosure of detailed information about business combination [line items] |  |  |  |  |
Property, plant and equipment |  |  |  | 800 |
Cyxtera core bata center portfolio | Remeasured lease assets |  |  |  |  |
Disclosure of detailed information about business combination [line items] |  |  |  |  |
Property, plant and equipment |  |  |  | 1,200 |
Cyxtera core bata center portfolio | Favourable lease assets |  |  |  |  |
Disclosure of detailed information about business combination [line items] |  |  |  |  |
Property, plant and equipment |  |  |  | 300 |
Cyxtera core bata center portfolio | BIPC holdings |  |  |  |  |
Disclosure of detailed information about business combination [line items] |  |  |  |  |
Gain recognised in bargain purchase transaction |  |  |  | $ 200 |

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