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BORROWINGS - Repayments on Non-Recourse Borrowings (Details) - USD ($) $ in Millions | Dec. 31, 2021 | Dec. 31, 2020
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Disclosure of detailed information about borrowings [line items] |  |
Debt in breach of asset-level financial covenants | $ 145 |
Non-recourse borrowings |  |
Disclosure of detailed information about borrowings [line items] |  |
Non-recourse borrowings | 26,534 | $ 20,020
Non-recourse borrowings | Gross |  |
Disclosure of detailed information about borrowings [line items] |  |
Non-recourse borrowings | 26,509 |
Non-recourse borrowings | Deferred financing costs and other |  |
Disclosure of detailed information about borrowings [line items] |  |
Non-recourse borrowings | 25 |
Non-recourse borrowings | 2022 | Gross |  |
Disclosure of detailed information about borrowings [line items] |  |
Non-recourse borrowings | 2,599 |
Non-recourse borrowings | 2023 | Gross |  |
Disclosure of detailed information about borrowings [line items] |  |
Non-recourse borrowings | 2,797 |
Non-recourse borrowings | 2024 | Gross |  |
Disclosure of detailed information about borrowings [line items] |  |
Non-recourse borrowings | 3,218 |
Non-recourse borrowings | 2025 | Gross |  |
Disclosure of detailed information about borrowings [line items] |  |
Non-recourse borrowings | 2,669 |
Non-recourse borrowings | 2026 | Gross |  |
Disclosure of detailed information about borrowings [line items] |  |
Non-recourse borrowings | 5,448 |
Non-recourse borrowings | Thereafter | Gross |  |
Disclosure of detailed information about borrowings [line items] |  |
Non-recourse borrowings | 9,778 |
Non-recourse borrowings | Utilities |  |
Disclosure of detailed information about borrowings [line items] |  |
Non-recourse borrowings | 7,951 | 8,067
Non-recourse borrowings | Utilities | Gross |  |
Disclosure of detailed information about borrowings [line items] |  |
Non-recourse borrowings | 7,982 |
Non-recourse borrowings | Utilities | Deferred financing costs and other |  |
Disclosure of detailed information about borrowings [line items] |  |
Non-recourse borrowings | (31) |
Non-recourse borrowings | Utilities | 2022 | Gross |  |
Disclosure of detailed information about borrowings [line items] |  |
Non-recourse borrowings | 341 |
Non-recourse borrowings | Utilities | 2023 | Gross |  |
Disclosure of detailed information about borrowings [line items] |  |
Non-recourse borrowings | 1,619 |
Non-recourse borrowings | Utilities | 2024 | Gross |  |
Disclosure of detailed information about borrowings [line items] |  |
Non-recourse borrowings | 1,191 |
Non-recourse borrowings | Utilities | 2025 | Gross |  |
Disclosure of detailed information about borrowings [line items] |  |
Non-recourse borrowings | 440 |
Non-recourse borrowings | Utilities | 2026 | Gross |  |
Disclosure of detailed information about borrowings [line items] |  |
Non-recourse borrowings | 694 |
Non-recourse borrowings | Utilities | Thereafter | Gross |  |
Disclosure of detailed information about borrowings [line items] |  |
Non-recourse borrowings | 3,697 |
Non-recourse borrowings | Transport |  |
Disclosure of detailed information about borrowings [line items] |  |
Non-recourse borrowings | 5,309 | 6,635
Non-recourse borrowings | Transport | Gross |  |
Disclosure of detailed information about borrowings [line items] |  |
Non-recourse borrowings | 5,348 |
Non-recourse borrowings | Transport | Deferred financing costs and other |  |
Disclosure of detailed information about borrowings [line items] |  |
Non-recourse borrowings | (39) |
Non-recourse borrowings | Transport | 2022 | Gross |  |
Disclosure of detailed information about borrowings [line items] |  |
Non-recourse borrowings | 386 |
Non-recourse borrowings | Transport | 2023 | Gross |  |
Disclosure of detailed information about borrowings [line items] |  |
Non-recourse borrowings | 247 |
Non-recourse borrowings | Transport | 2024 | Gross |  |
Disclosure of detailed information about borrowings [line items] |  |
Non-recourse borrowings | 296 |
Non-recourse borrowings | Transport | 2025 | Gross |  |
Disclosure of detailed information about borrowings [line items] |  |
Non-recourse borrowings | 258 |
Non-recourse borrowings | Transport | 2026 | Gross |  |
Disclosure of detailed information about borrowings [line items] |  |
Non-recourse borrowings | 3,217 |
Non-recourse borrowings | Transport | Thereafter | Gross |  |
Disclosure of detailed information about borrowings [line items] |  |
Non-recourse borrowings | 944 |
Non-recourse borrowings | Midstream |  |
Disclosure of detailed information about borrowings [line items] |  |
Non-recourse borrowings | 9,490 | 2,111
Non-recourse borrowings | Midstream | Gross |  |
Disclosure of detailed information about borrowings [line items] |  |
Non-recourse borrowings | 9,334 |
Non-recourse borrowings | Midstream | Deferred financing costs and other |  |
Disclosure of detailed information about borrowings [line items] |  |
Non-recourse borrowings | 156 |
Non-recourse borrowings | Midstream | 2022 | Gross |  |
Disclosure of detailed information about borrowings [line items] |  |
Non-recourse borrowings | 1,819 |
Non-recourse borrowings | Midstream | 2023 | Gross |  |
Disclosure of detailed information about borrowings [line items] |  |
Non-recourse borrowings | 715 |
Non-recourse borrowings | Midstream | 2024 | Gross |  |
Disclosure of detailed information about borrowings [line items] |  |
Non-recourse borrowings | 1,536 |
Non-recourse borrowings | Midstream | 2025 | Gross |  |
Disclosure of detailed information about borrowings [line items] |  |
Non-recourse borrowings | 1,264 |
Non-recourse borrowings | Midstream | 2026 | Gross |  |
Disclosure of detailed information about borrowings [line items] |  |
Non-recourse borrowings | 1,028 |
Non-recourse borrowings | Midstream | Thereafter | Gross |  |
Disclosure of detailed information about borrowings [line items] |  |
Non-recourse borrowings | 2,972 |
Non-recourse borrowings | Data |  |
Disclosure of detailed information about borrowings [line items] |  |
Non-recourse borrowings | 3,784 | $ 3,207
Non-recourse borrowings | Data | Gross |  |
Disclosure of detailed information about borrowings [line items] |  |
Non-recourse borrowings | 3,845 |
Non-recourse borrowings | Data | Deferred financing costs and other |  |
Disclosure of detailed information about borrowings [line items] |  |
Non-recourse borrowings | (61) |
Non-recourse borrowings | Data | 2022 | Gross |  |
Disclosure of detailed information about borrowings [line items] |  |
Non-recourse borrowings | 53 |
Non-recourse borrowings | Data | 2023 | Gross |  |
Disclosure of detailed information about borrowings [line items] |  |
Non-recourse borrowings | 216 |
Non-recourse borrowings | Data | 2024 | Gross |  |
Disclosure of detailed information about borrowings [line items] |  |
Non-recourse borrowings | 195 |
Non-recourse borrowings | Data | 2025 | Gross |  |
Disclosure of detailed information about borrowings [line items] |  |
Non-recourse borrowings | 707 |
Non-recourse borrowings | Data | 2026 | Gross |  |
Disclosure of detailed information about borrowings [line items] |  |
Non-recourse borrowings | 509 |
Non-recourse borrowings | Data | Thereafter | Gross |  |
Disclosure of detailed information about borrowings [line items] |  |
Non-recourse borrowings | $ 2,165 |

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