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BORROWINGS - Corporate Borrowings (Details) $ in Millions |  | 12 Months Ended |  |  |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Apr. 25, 2022 USD ($) | Dec. 31, 2024 USD ($) | Dec. 31, 2023 USD ($) | Dec. 31, 2022 USD ($) | Nov. 29, 2024 USD ($) | Nov. 29, 2024 CAD ($) | Jun. 05, 2024 USD ($) | Jun. 05, 2024 CAD ($) | May 31, 2024 USD ($) | May 31, 2024 CAD ($) | Feb. 22, 2024 USD ($) | Jul. 27, 2023 CAD ($) | Nov. 14, 2022 CAD ($) | Apr. 25, 2022 CAD ($)
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Credit facility, maximum borrowing capacity |  | $ 458,000,000 |  |  |  |  |  |  |  |  |  |  |  |
Deferred financing costs and other |  | (29,000,000) | $ (21,000,000) |  |  |  |  |  |  |  |  |  |  |
Current and non-current portion of corporate borrowings |  | 4,542,000,000 | 4,911,000,000 |  |  |  |  |  |  |  |  |  |  |
Notional amount |  | 21,604,000,000 | 21,276,000,000 |  |  |  |  |  |  |  |  |  |  |
Line of credit, amount drawn |  | 78,000,000 |  |  |  |  |  |  |  |  |  |  |  |
Repayment of corporate borrowings |  | (531,000,000) | 0 | $ 0 |  |  |  |  |  |  |  |  |  |
Net (repayment) proceeds from commercial paper program |  | 139,000,000 | (525,000,000) | $ (33,000,000) |  |  |  |  |  |  |  |  |  |
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 |  |  |  |  |  |  |  |  |  |  |
Basis points |  | 0.0013 |  |  |  |  |  |  |  |  |  |  |  |
Total |  |  | 222,000,000 |  |  |  |  |  |  |  |  |  |  |
Letter of credit outstanding amount |  | $ 10,000,000 | 8,000,000 |  |  |  |  |  |  |  |  |  |  |
Senior Unsecured Revolving Credit Facility | Floating interest rate |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Borrowings, adjustment to interest rate basis |  | 1.20% |  |  |  |  |  |  |  |  |  |  |  |
Corporate revolving credit facility |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total |  | $ 300,000,000 | 222,000,000 |  |  |  |  |  |  |  |  |  |  |
Corporate revolving credit facility | Floating interest rate |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Borrowings, adjustment to interest rate basis |  | 1.20% |  |  |  |  |  |  |  |  |  |  |  |
Commercial Paper |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total |  | $ 850,000,000 | 989,000,000 |  |  |  |  |  |  |  |  |  |  |
Commercial Paper | Fixed interest rate |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Annual rate |  | 5.00% |  |  |  |  |  |  |  |  |  |  |  |
Medium Term Notes, Public - Canadian - Maturing February 22, 2024 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total |  | $ 0 | 226,000,000 |  |  |  |  |  |  |  | $ 531,000,000 |  |  |
Medium Term Notes, Public - Canadian - Maturing February 22, 2024 | Fixed interest rate |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Annual rate |  | 3.30% |  |  |  |  |  |  |  |  | 3.315% |  |  |
Medium Term Notes, Public - Canadian - Maturing February 22, 2024 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total |  | $ 0 | 302,000,000 |  |  |  |  |  |  |  |  |  |  |
Medium Term Notes, Public - Canadian - Maturing February 22, 2024 | Fixed interest rate |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Annual rate |  | 3.30% |  |  |  |  |  |  |  |  |  |  |  |
Medium-term Notes, Maturing November 31, 2027 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total |  | $ 313,000,000 | 340,000,000 |  |  |  |  |  |  |  |  |  |  |
Medium-term Notes, Maturing November 31, 2027 | Fixed interest rate |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Annual rate |  | 5.60% |  |  |  |  |  |  |  |  |  |  |  |
Medium-term Notes, Maturing September 11, 2028 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total |  | $ 487,000,000 | 528,000,000 |  |  |  |  |  |  |  |  |  |  |
Medium-term Notes, Maturing September 11, 2028 | Fixed interest rate |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Annual rate |  | 4.20% |  |  |  |  |  |  |  |  |  |  |  |
Medium-term Notes, Maturing October 9, 2029 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total |  | $ 487,000,000 | 528,000,000 |  |  |  |  |  |  |  |  |  |  |
Medium-term Notes, Maturing October 9, 2029 | Fixed interest rate |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Annual rate |  | 3.40% |  |  |  |  |  |  |  |  |  |  |  |
Medium-term Notes, Maturing July 27, 2030 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total |  | $ 348,000,000 | 377,000,000 |  |  |  |  |  |  |  |  |  |  |
Notional amount |  |  |  |  |  |  |  |  |  |  |  | $ 700 |  |
Medium-term Notes, Maturing July 27, 2030 | Fixed interest rate |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Annual rate |  | 5.70% |  |  |  |  |  |  |  |  |  |  |  |
Medium-term Notes, Maturing July 27, 2030 Tranche One |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Notional amount |  |  |  |  |  |  |  |  |  |  |  | $ 500 |  |
Medium-term Notes, Maturing July 27, 2030 Tranche One | Fixed interest rate |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Annual rate |  |  |  |  |  |  |  |  |  |  |  | 5.71% |  |
Medium-term Notes, Maturing July 27, 2030 Tranche Two |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Notional amount |  |  |  |  |  |  |  |  |  |  |  | $ 200 |  |
Medium-term Notes, Maturing July 27, 2030 Tranche Two | Fixed interest rate |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Annual rate |  |  |  |  |  |  |  |  |  |  |  | 5.95% |  |
Medium-term Notes, Maturing September 1, 2032 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total |  | $ 348,000,000 | 377,000,000 |  |  |  |  |  |  |  |  |  |  |
Medium-term Notes, Maturing September 1, 2032 | Fixed interest rate |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Annual rate |  | 2.90% |  |  |  |  |  |  |  |  |  |  |  |
Medium-term Notes, Maturing February 13, 2033 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total |  | $ 174,000,000 | 189,000,000 |  |  |  |  |  |  |  |  |  |  |
Medium-term Notes, Maturing February 13, 2033 | Fixed interest rate |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Annual rate |  | 6.00% |  |  |  |  |  |  |  |  |  |  |  |
Medium-term Notes, Maturing April 25, 2034 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total |  | $ 278,000,000 | 302,000,000 |  |  |  |  |  |  |  |  |  |  |
Notional amount |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 600
Finance costs | $ 3,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Medium-term Notes, Maturing April 25, 2034 | Fixed interest rate |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Annual rate |  | 5.40% |  |  |  |  |  |  |  |  |  |  |  |
Medium-term Notes, Maturing April 25, 2052 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total |  | $ 139,000,000 | 151,000,000 |  |  |  |  |  |  |  |  |  |  |
Medium-term Notes, Maturing April 25, 2052 | Fixed interest rate |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Annual rate |  | 5.80% |  |  |  |  |  |  |  |  |  |  |  |
Medium-term Notes, Maturing July 27, 2053 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total |  | $ 139,000,000 | 151,000,000 |  |  |  |  |  |  |  |  |  |  |
Medium-term Notes, Maturing July 27, 2053 | Fixed interest rate |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Annual rate |  | 6.00% |  |  |  |  |  |  |  |  |  |  |  |
Subordinated notes, Maturing March 15, 2055 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total |  | $ 300,000,000 | 0 |  | $ 300,000,000 |  |  |  |  |  |  |  |  |
Annual rate |  | 6.80% |  |  |  |  |  |  |  |  |  |  |  |
Notional amount |  |  |  |  |  | $ 300 |  |  |  |  |  |  |  |
Subordinated notes, Maturing March 15, 2055 | Fixed interest rate |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Annual rate |  | 6.80% |  |  | 6.80% | 6.80% |  |  |  |  |  |  |  |
Subordinated notes, Maturing 2081 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total |  | $ 250,000,000 | $ 250,000,000 |  |  |  |  |  |  |  |  |  |  |
Annual rate |  | 5.00% | 5.00% |  |  |  |  |  |  |  |  |  |  |
Subordinated notes, Maturing 2081 | Fixed interest rate |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Annual rate |  | 5.00% |  |  |  |  |  |  |  |  |  |  |  |
Subordinated notes, Maturing May 31, 2084 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total |  | $ 158,000,000 | $ 0 |  |  |  | $ 158,000,000 |  | $ 158,000,000 |  |  |  |  |
Annual rate |  | 7.30% |  |  |  |  |  |  |  |  |  |  |  |
Notional amount |  |  |  |  |  |  |  | $ 8 |  | $ 150 |  |  |  |
Subordinated notes, Maturing May 31, 2084 | Fixed interest rate |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Annual rate |  | 7.30% |  |  |  |  | 7.30% | 7.30% | 7.25% | 7.25% |  |  |  |
Corporate borrowings |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total |  | $ 4,571,000,000 | 4,932,000,000 |  |  |  |  |  |  |  |  |  |  |
Increase (decrease) in corporate borrowings |  | (369,000,000) |  |  |  |  |  |  |  |  |  |  |  |
Subordinated notes, Maturing March 15, 2030 | Floating interest rate |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Borrowings, variable rate |  |  |  |  | 2.453% | 2.453% |  |  |  |  |  |  |  |
Revolving credit facility with Brookfield |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Credit facility, maximum borrowing capacity |  | 1,000,000,000 | 1,000,000,000 |  |  |  |  |  |  |  |  |  |  |
Total |  | $ 0 | $ 0 |  |  |  |  |  |  |  |  |  |  |
Borrowings, term |  | 1 year |  |  |  |  |  |  |  |  |  |  |  |
Revolving credit facility with Brookfield | Floating interest rate |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Borrowings, adjustment to interest rate basis |  | 1.90% |  |  |  |  |  |  |  |  |  |  |  |
Medium-term Notes, Maturing November 14, 2027 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Notional amount |  |  |  |  |  |  |  |  |  |  |  |  | $ 700 |
Medium-term Notes, Maturing November 14, 2027 Tranche One |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Notional amount |  |  |  |  |  |  |  |  |  |  |  |  | $ 450 |
Medium-term Notes, Maturing November 14, 2027 Tranche One | Fixed interest rate |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Annual rate |  |  |  |  |  |  |  |  |  |  |  |  | 5.60% |
Medium-term Notes, Maturing November 14, 2027 Tranche Two |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Notional amount |  |  |  |  |  |  |  |  |  |  |  |  | $ 250 |
Medium-term Notes, Maturing November 14, 2027 Tranche Two | Fixed interest rate |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Annual rate |  |  |  |  |  |  |  |  |  |  |  |  | 6.00% |
Medium-term Notes, Maturing April 25, 2034 Tranche One |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Notional amount |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 400
Medium-term Notes, Maturing April 25, 2034 Tranche One | Fixed interest rate |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Annual rate |  |  |  |  |  |  |  |  |  |  |  |  |  | 5.40%
Medium-term Notes, Maturing April 25, 2034 Tranche Two |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Notional amount |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 200
Medium-term Notes, Maturing April 25, 2034 Tranche Two | Fixed interest rate |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Annual rate |  |  |  |  |  |  |  |  |  |  |  |  |  | 5.80%

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- Definition Increase (decrease) in corporate borrowings + References No definition available. + Details
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- Definition Line of Credit Facility, Maximum Borrowing Capacity + References No definition available. + Details
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