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SALE OF GOLDEN EAGLE AREA DEVELOPMENT (Details) - Golden Eagle Area Development $ in Millions, $ in Millions | 3 Months Ended
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Dec. 31, 2021 USD ($) $ / bbl | Dec. 31, 2021 CAD ($)
SALE OF GOLDEN EAGLE AREA DEVELOPMENT |  |
Ownership interest sold (as percent) | 26.69% | 26.69%
Proceeds from sale of joint operations, net of closing adjustments and other closing costs | $ 250 |
Gain on sale of joint operations, net of tax |  | $ 227
Maximum |  |
SALE OF GOLDEN EAGLE AREA DEVELOPMENT |  |
Contingent receivable | 50 |
Contingent Consideration, Milestone 1 |  |
SALE OF GOLDEN EAGLE AREA DEVELOPMENT |  |
Contingent receivable | $ 25 |
Contingent Consideration, Milestone 1 | Brent crude oil |  |
SALE OF GOLDEN EAGLE AREA DEVELOPMENT |  |
Average crude price per barrel | $ / bbl | 55 |
Contingent Consideration, Milestone 2 |  |
SALE OF GOLDEN EAGLE AREA DEVELOPMENT |  |
Contingent receivable | $ 50 |
Contingent Consideration, Milestone 2 | Brent crude oil |  |
SALE OF GOLDEN EAGLE AREA DEVELOPMENT |  |
Average crude price per barrel | $ / bbl | 65 |

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