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ACQUISITION OF BUSINESSES - Additional Information (Details) $ in Millions |  | 6 Months Ended | 12 Months Ended
--- | --- | --- | ---
May 02, 2023 USD ($) | Jun. 30, 2023 USD ($) | Dec. 31, 2022 USD ($) business
Disclosure of detailed information about business combination [line items] |  |  |
Acquisition-related costs recognised as expense for transaction recognised separately from acquisition of assets and assumption of liabilities in business combination |  | $ 55 |
Business acquisition, proforma revenue |  | 35 |
Business acquisition, proforma income |  | 7 |
HomeServe PLC |  |  |
Disclosure of detailed information about business combination [line items] |  |  |
Total consideration |  | 1,200 |
HomeServe PLC | Consortium |  |  |
Disclosure of detailed information about business combination [line items] |  |  |
Total consideration |  | $ 4,900 |
HomeServe PLC, North America |  |  |
Disclosure of detailed information about business combination [line items] |  |  |
Ownership interest |  | 26.00% |
HomeServe PLC, Europe |  |  |
Disclosure of detailed information about business combination [line items] |  |  |
Ownership interest |  | 25.00% |
Aggregated individually immaterial business combinations |  |  |
Disclosure of detailed information about business combination [line items] |  |  |
Total consideration |  | $ 1,249 | $ 161
Brazilian regulated gas transmission operation |  |  |
Disclosure of detailed information about business combination [line items] |  |  |
Proportion of ownership interest in subsidiary, additional | 15.00% |  |
Additional payments for proportion of ownership interest in subsidiary | $ 35 |  |
Proportion of ownership interest in subsidiary | 31.00% |  |
Sertaneja Consortium |  |  |
Disclosure of detailed information about business combination [line items] |  |  |
Additional payments for proportion of ownership interest in subsidiary | $ 114 |  |
Proportion of ownership interest in subsidiary | 100.00% |  |
Indian Telecom Towers Operation |  |  |
Disclosure of detailed information about business combination [line items] |  |  |
Total consideration |  |  | $ 30
Percentage of voting interest in company |  |  | 17.00%
Indian Telecom Towers Operation | Consortium |  |  |
Disclosure of detailed information about business combination [line items] |  |  |
Total consideration |  |  | $ 165
Percentage of voting interest in company |  |  | 100.00%
North American Residential Energy Infrastructure Operation |  |  |
Disclosure of detailed information about business combination [line items] |  |  |
Total consideration |  |  | $ 90
Percentage of voting interest in company |  |  | 30.00%
Number of businesses acquired | business |  |  | 5
North American Residential Energy Infrastructure Operation | Consortium |  |  |
Disclosure of detailed information about business combination [line items] |  |  |
Total consideration |  |  | $ 315
Percentage of voting interest in company |  |  | 100.00%
U.K. Telecommunications |  |  |
Disclosure of detailed information about business combination [line items] |  |  |
Total consideration |  |  | $ 40
Percentage of voting interest in company |  |  | 24.00%
U.K. Telecommunications | Consortium |  |  |
Disclosure of detailed information about business combination [line items] |  |  |
Total consideration |  |  | $ 160
Percentage of voting interest in company |  |  | 100.00%

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