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ACQUISITIONS AND DISPOSITIONS - Schedule of Supplemental Pro Forma Consolidated Financial Information (Details) - Moda Midstream Operating, LLC (Moda) $ in Millions | 12 Months Ended
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Dec. 31, 2021 CAD ($)
Business Acquisition [Line Items] |
Operating revenues | $ 47,339
Earnings attributable to common shareholders | 5,771
Acquisition-related expenses | 21
Acquisition-related expenses, after tax | 16
Amortization of fair value adjustments recorded for acquired property, plant and equipment, long-term investments and intangible assets | 193
Amortization of fair value adjustments recorded for acquired property, plant and equipment, long-term investments and intangible assets, after tax | $ 145

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