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FINANCIAL RISK MANAGEMENT - Additional Information (Details) - USD ($) | 12 Months Ended |
--- | --- | ---
Dec. 31, 2024 | Dec. 31, 2023
Disclosure of detailed information about borrowings [line items] |  |
Credit facility, maximum borrowing capacity | $ 458,000,000 |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |
Financial assets | 10,596,000,000 | $ 10,058,000,000
Market risk |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |
Impact of 10% change in value of investments on equity | 42,000,000 |
Impact of 10 percent change in value of investments on profit loss | 40,000,000 |
Marketable securities | Market risk |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |
Financial assets | 422,000,000 | 809,000,000
Senior Unsecured Revolving Credit Facility |  |
Disclosure of detailed information about borrowings [line items] |  |
Credit facility, maximum borrowing capacity | 2,200,000,000 | 2,200,000,000
Non-recourse borrowings |  | 222,000,000
Letter of credit outstanding amount | 10,000,000 | 8,000,000
Credit facility |  |
Disclosure of detailed information about borrowings [line items] |  |
Credit facility, maximum borrowing capacity | 1,000,000,000 | 1,000,000,000
Non-recourse borrowings | $ 0 | $ 0

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