0000001 - Document - Cover link:presentationLink link:calculationLink link:definitionLink 0000002 - Document - Audit Information link:presentationLink link:calculationLink link:definitionLink 9952151 - Statement - CONSOLIDATED STATEMENTS OF EARNINGS link:presentationLink link:calculationLink link:definitionLink 9952152 - Statement - CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME link:presentationLink link:calculationLink link:definitionLink 9952153 - Statement - CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY link:presentationLink link:calculationLink link:definitionLink 9952154 - Statement - CONSOLIDATED STATEMENTS OF CASH FLOWS link:presentationLink link:calculationLink link:definitionLink 9952155 - Statement - CONSOLIDATED STATEMENTS OF CASH FLOWS (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 9952156 - Statement - CONSOLIDATED STATEMENTS OF FINANCIAL POSITION link:presentationLink link:calculationLink link:definitionLink 9952157 - Statement - CONSOLIDATED STATEMENTS OF FINANCIAL POSITION (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 9952158 - Disclosure - BUSINESS OVERVIEW link:presentationLink link:calculationLink link:definitionLink 9952159 - Disclosure - SIGNIFICANT ACCOUNTING POLICIES link:presentationLink link:calculationLink link:definitionLink 9952160 - Disclosure - CHANGES IN ACCOUNTING POLICIES link:presentationLink link:calculationLink link:definitionLink 9952161 - Disclosure - REVENUE link:presentationLink link:calculationLink link:definitionLink 9952162 - Disclosure - SEGMENTED INFORMATION link:presentationLink link:calculationLink link:definitionLink 9952163 - Disclosure - EARNINGS PER COMMON SHARE link:presentationLink link:calculationLink link:definitionLink 9952164 - Disclosure - REGULATORY MATTERS link:presentationLink link:calculationLink link:definitionLink 9952165 - Disclosure - ACQUISITIONS AND DISPOSITIONS link:presentationLink link:calculationLink link:definitionLink 9952166 - Disclosure - OTHER CURRENT ASSETS link:presentationLink link:calculationLink link:definitionLink 9952167 - Disclosure - INVENTORY link:presentationLink link:calculationLink link:definitionLink 9952168 - Disclosure - PROPERTY, PLANT AND EQUIPMENT link:presentationLink link:calculationLink link:definitionLink 9952169 - Disclosure - VARIABLE INTEREST ENTITIES link:presentationLink link:calculationLink link:definitionLink 9952170 - Disclosure - LONG-TERM INVESTMENTS link:presentationLink link:calculationLink link:definitionLink 9952171 - Disclosure - INTANGIBLE ASSETS link:presentationLink link:calculationLink link:definitionLink 9952172 - Disclosure - GOODWILL link:presentationLink link:calculationLink link:definitionLink 9952173 - Disclosure - OTHER CURRENT LIABILITIES link:presentationLink link:calculationLink link:definitionLink 9952174 - Disclosure - DEBT link:presentationLink link:calculationLink link:definitionLink 9952175 - Disclosure - ASSET RETIREMENT OBLIGATIONS link:presentationLink link:calculationLink link:definitionLink 9952176 - Disclosure - NONCONTROLLING INTERESTS link:presentationLink link:calculationLink link:definitionLink 9952177 - Disclosure - SHARE CAPITAL link:presentationLink link:calculationLink link:definitionLink 9952178 - Disclosure - STOCK OPTION AND STOCK UNIT PLANS link:presentationLink link:calculationLink link:definitionLink 9952179 - Disclosure - COMPONENTS OF ACCUMULATED OTHER COMPREHENSIVE INCOME/(LOSS) link:presentationLink link:calculationLink link:definitionLink 9952180 - Disclosure - RISK MANAGEMENT AND FINANCIAL INSTRUMENTS link:presentationLink link:calculationLink link:definitionLink 9952181 - Disclosure - INCOME TAXES link:presentationLink link:calculationLink link:definitionLink 9952182 - Disclosure - PENSION AND OTHER POSTRETIREMENT BENEFITS link:presentationLink link:calculationLink link:definitionLink 9952183 - Disclosure - LEASES link:presentationLink link:calculationLink link:definitionLink 9952184 - Disclosure - OTHER INCOME/(EXPENSE) link:presentationLink link:calculationLink link:definitionLink 9952185 - Disclosure - CHANGES IN OPERATING ASSETS AND LIABILITIES link:presentationLink link:calculationLink link:definitionLink 9952186 - Disclosure - RELATED PARTY TRANSACTIONS link:presentationLink link:calculationLink link:definitionLink 9952187 - Disclosure - COMMITMENTS AND CONTINGENCIES link:presentationLink link:calculationLink link:definitionLink 9952188 - Disclosure - GUARANTEES link:presentationLink link:calculationLink link:definitionLink 9952189 - Disclosure - QUARTERLY FINANCIAL DATA (UNAUDITED) link:presentationLink link:calculationLink link:definitionLink 9955511 - Disclosure - SIGNIFICANT ACCOUNTING POLICIES (Policies) link:presentationLink link:calculationLink link:definitionLink 9955512 - Disclosure - REVENUE (Tables) link:presentationLink link:calculationLink link:definitionLink 9955513 - Disclosure - SEGMENTED INFORMATION (Tables) link:presentationLink link:calculationLink link:definitionLink 9955514 - Disclosure - EARNINGS PER COMMON SHARE (Tables) link:presentationLink link:calculationLink link:definitionLink 9955515 - Disclosure - REGULATORY MATTERS (Tables) link:presentationLink link:calculationLink link:definitionLink 9955516 - Disclosure - ACQUISITIONS AND DISPOSITIONS (Tables) link:presentationLink link:calculationLink link:definitionLink 9955517 - Disclosure - OTHER CURRENT ASSETS (Tables) link:presentationLink link:calculationLink link:definitionLink 9955518 - Disclosure - INVENTORY (Tables) link:presentationLink link:calculationLink link:definitionLink 9955519 - Disclosure - PROPERTY, PLANT AND EQUIPMENT (Tables) link:presentationLink link:calculationLink link:definitionLink 9955520 - Disclosure - VARIABLE INTEREST ENTITIES (Tables) link:presentationLink link:calculationLink link:definitionLink 9955521 - Disclosure - LONG-TERM INVESTMENTS (Tables) link:presentationLink link:calculationLink link:definitionLink 9955522 - Disclosure - INTANGIBLE ASSETS (Tables) link:presentationLink link:calculationLink link:definitionLink 9955523 - Disclosure - GOODWILL (Tables) link:presentationLink link:calculationLink link:definitionLink 9955524 - Disclosure - OTHER CURRENT LIABILITIES (Tables) link:presentationLink link:calculationLink link:definitionLink 9955525 - Disclosure - DEBT (Tables) link:presentationLink link:calculationLink link:definitionLink 9955526 - Disclosure - ASSET RETIREMENT OBLIGATIONS (Tables) link:presentationLink link:calculationLink link:definitionLink 9955527 - Disclosure - NONCONTROLLING INTERESTS (Tables) link:presentationLink link:calculationLink link:definitionLink 9955528 - Disclosure - SHARE CAPITAL (Tables) link:presentationLink link:calculationLink link:definitionLink 9955529 - Disclosure - STOCK OPTION AND STOCK UNIT PLANS (Tables) link:presentationLink link:calculationLink link:definitionLink 9955530 - Disclosure - COMPONENTS OF ACCUMULATED OTHER COMPREHENSIVE INCOME/(LOSS) (Tables) link:presentationLink link:calculationLink link:definitionLink 9955531 - Disclosure - RISK MANAGEMENT AND FINANCIAL INSTRUMENTS (Tables) link:presentationLink link:calculationLink link:definitionLink 9955532 - Disclosure - INCOME TAXES (Tables) link:presentationLink link:calculationLink link:definitionLink 9955533 - Disclosure - PENSION AND OTHER POSTRETIREMENT BENEFITS (Tables) link:presentationLink link:calculationLink link:definitionLink 9955534 - Disclosure - LEASES (Tables) link:presentationLink link:calculationLink link:definitionLink 9955535 - Disclosure - OTHER INCOME/(EXPENSE) (Tables) link:presentationLink link:calculationLink link:definitionLink 9955536 - Disclosure - CHANGES IN OPERATING ASSETS AND LIABILITIES (Tables) link:presentationLink link:calculationLink link:definitionLink 9955537 - Disclosure - RELATED PARTY TRANSACTIONS (Tables) link:presentationLink link:calculationLink link:definitionLink 9955538 - Disclosure - COMMITMENTS AND CONTINGENCIES (Tables) link:presentationLink link:calculationLink link:definitionLink 9955539 - Disclosure - QUARTERLY FINANCIAL DATA (UNAUDITED) (Tables) link:presentationLink link:calculationLink link:definitionLink 9955540 - Disclosure - BUSINESS OVERVIEW (Details) link:presentationLink link:calculationLink link:definitionLink 9955541 - Disclosure - SIGNIFICANT ACCOUNTING POLICIES - Revenue Recognition (Details) link:presentationLink link:calculationLink link:definitionLink 9955542 - Disclosure - SIGNIFICANT ACCOUNTING POLICIES - Current Expected Credit Losses (Details) link:presentationLink link:calculationLink link:definitionLink 9955543 - Disclosure - SIGNIFICANT ACCOUNTING POLICIES - Property, Plant and Equipment (Details) link:presentationLink link:calculationLink link:definitionLink 9955544 - Disclosure - SIGNIFICANT ACCOUNTING POLICIES - Stock-Based Compensation (Details) link:presentationLink link:calculationLink link:definitionLink 9955545 - Disclosure - REVENUE - Major Products and Services (Details) link:presentationLink link:calculationLink link:definitionLink 9955546 - Disclosure - REVENUE - Contract Balances (Details) link:presentationLink link:calculationLink link:definitionLink 9955547 - Disclosure - REVENUE - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955547 - Disclosure - REVENUE - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955548 - Disclosure - REVENUE - Recognition and Measurement of Revenues (Details) link:presentationLink link:calculationLink link:definitionLink 9955549 - Disclosure - SEGMENTED INFORMATION - Schedule of Reporting Information by Segment (Details) link:presentationLink link:calculationLink link:definitionLink 9955550 - Disclosure - SEGMENTED INFORMATION - Geographic Information and Property, Plant and Equipment (Details) link:presentationLink link:calculationLink link:definitionLink 9955551 - Disclosure - EARNINGS PER COMMON SHARE - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955552 - Disclosure - EARNINGS PER COMMON SHARE - Weighted Average Shares Outstanding (Details) link:presentationLink link:calculationLink link:definitionLink 9955553 - Disclosure - REGULATORY MATTERS - Liquids Pipelines (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 9955554 - Disclosure - REGULATORY MATTERS -Southern Lights Pipeline (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 9955555 - Disclosure - REGULATORY MATTERS - Enbridge Gas Distribution Inc. (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 9955556 - Disclosure - REGULATORY MATTERS - Schedule of Regulatory Assets and Liabilities (Details) link:presentationLink link:calculationLink link:definitionLink 9955557 - Disclosure - ACQUISITIONS AND DISPOSITIONS - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955558 - Disclosure - ACQUISITIONS AND DISPOSITIONS - Schedule of Estimated Fair Values Assigned to Net Assets and Final Purchase Price Allocation (Details) link:presentationLink link:calculationLink link:definitionLink 9955559 - Disclosure - ACQUISITIONS AND DISPOSITIONS - Schedule of Supplemental Pro Forma Consolidated Financial Information (Details) link:presentationLink link:calculationLink link:definitionLink 9955560 - Disclosure - ACQUISITIONS AND DISPOSITIONS - Asset Acquisition (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 9955561 - Disclosure - ACQUISITIONS AND DISPOSITIONS - Dispositions (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 9955562 - Disclosure - OTHER CURRENT ASSETS (Details) link:presentationLink link:calculationLink link:definitionLink 9955563 - Disclosure - INVENTORY (Details) link:presentationLink link:calculationLink link:definitionLink 9955564 - Disclosure - PROPERTY, PLANT AND EQUIPMENT - Schedule of Property, Plant and Equipment (Details) link:presentationLink link:calculationLink link:definitionLink 9955565 - Disclosure - PROPERTY, PLANT AND EQUIPMENT - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955566 - Disclosure - VARIABLE INTEREST ENTITIES - Schedule of Assets and Liabilities of Consolidated VIEs (Details) link:presentationLink link:calculationLink link:definitionLink 9955567 - Disclosure - VARIABLE INTEREST ENTITIES - Schedule of the Carrying Amount of Interest in VIEs (Details) link:presentationLink link:calculationLink link:definitionLink 9955568 - Disclosure - LONG-TERM INVESTMENTS - Schedule of Long-Term Investments (Details) link:presentationLink link:calculationLink link:definitionLink 9955569 - Disclosure - LONG-TERM INVESTMENTS - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955570 - Disclosure - LONG-TERM INVESTMENTS - Schedule of Combined Financial Information (Details) link:presentationLink link:calculationLink link:definitionLink 9955571 - Disclosure - LONG-TERM INVESTMENTS - Disposition (Details) link:presentationLink link:calculationLink link:definitionLink 9955572 - Disclosure - LONG-TERM INVESTMENTS - Equity Investment Transaction (Details) link:presentationLink link:calculationLink link:definitionLink 9955573 - Disclosure - INTANGIBLE ASSETS - Schedule of Intangible Assets (Details) link:presentationLink link:calculationLink link:definitionLink 9955574 - Disclosure - INTANGIBLE ASSETS - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955575 - Disclosure - GOODWILL (Details) link:presentationLink link:calculationLink link:definitionLink 9955576 - Disclosure - OTHER CURRENT LIABILITIES (Details) link:presentationLink link:calculationLink link:definitionLink 9955577 - Disclosure - DEBT - Schedule of Debt (Details) link:presentationLink link:calculationLink link:definitionLink 9955578 - Disclosure - DEBT - Schedule of Committed Credit Facilities (Details) link:presentationLink link:calculationLink link:definitionLink 9955579 - Disclosure - DEBT - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955580 - Disclosure - DEBT - Schedule of Long-term Debt Issuances (Details) link:presentationLink link:calculationLink link:definitionLink 9955581 - Disclosure - DEBT - Schedule of Long-Term Debt Repayments (Details) link:presentationLink link:calculationLink link:definitionLink 9955582 - Disclosure - DEBT - Schedule of Maturities (Details) link:presentationLink link:calculationLink link:definitionLink 9955583 - Disclosure - DEBT - Schedule of Interest Expense (Details) link:presentationLink link:calculationLink link:definitionLink 9955584 - Disclosure - ASSET RETIREMENT OBLIGATIONS (Details) link:presentationLink link:calculationLink link:definitionLink 9955585 - Disclosure - NONCONTROLLING INTERESTS (Details) link:presentationLink link:calculationLink link:definitionLink 9955586 - Disclosure - SHARE CAPITAL - Schedule of Common Shares (Details) link:presentationLink link:calculationLink link:definitionLink 9955587 - Disclosure - SHARE CAPITAL - Schedule of Preference Shares and Characteristics of Preference Shares (Details) link:presentationLink link:calculationLink link:definitionLink 9955588 - Disclosure - SHARE CAPITAL - Shareholder Rights Plan (Details) link:presentationLink link:calculationLink link:definitionLink 9955589 - Disclosure - STOCK OPTION AND STOCK UNIT PLANS - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955590 - Disclosure - STOCK OPTION AND STOCK UNIT PLANS - Schedule of Outstanding Stock Options (Details) link:presentationLink link:calculationLink link:definitionLink 9955591 - Disclosure - STOCK OPTION AND STOCK UNIT PLANS - Schedule of Weighted Average Assumptions Used to Determine the Fair Value of Stock Options Granted (Details) link:presentationLink link:calculationLink link:definitionLink 9955592 - Disclosure - STOCK OPTION AND STOCK UNIT PLANS - PSUs and RSUs (Details) link:presentationLink link:calculationLink link:definitionLink 9955593 - Disclosure - COMPONENTS OF ACCUMULATED OTHER COMPREHENSIVE INCOME/(LOSS) (Details) link:presentationLink link:calculationLink link:definitionLink 9955594 - Disclosure - RISK MANAGEMENT AND FINANCIAL INSTRUMENTS - Market Risk (Details) link:presentationLink link:calculationLink link:definitionLink 9955595 - Disclosure - RISK MANAGEMENT AND FINANCIAL INSTRUMENTS - Total Derivative Instruments (Details) link:presentationLink link:calculationLink link:definitionLink 9955596 - Disclosure - RISK MANAGEMENT AND FINANCIAL INSTRUMENTS - Notional Principal or Quantity Information (Details) link:presentationLink link:calculationLink link:definitionLink 9955597 - Disclosure - RISK MANAGEMENT AND FINANCIAL INSTRUMENTS - Fair Value Derivatives (Details) link:presentationLink link:calculationLink link:definitionLink 9955598 - Disclosure - RISK MANAGEMENT AND FINANCIAL INSTRUMENTS - Effects on Earnings and Comprehensive Income (Details) link:presentationLink link:calculationLink link:definitionLink 9955599 - Disclosure - RISK MANAGEMENT AND FINANCIAL INSTRUMENTS - Fair Value Derivatives (Details) link:presentationLink link:calculationLink link:definitionLink 9955600 - Disclosure - RISK MANAGEMENT AND FINANCIAL INSTRUMENTS - Liquidity and Credit Risk (Details) link:presentationLink link:calculationLink link:definitionLink 9955601 - Disclosure - RISK MANAGEMENT AND FINANCIAL INSTRUMENTS - Fair Value of Derivatives (Details) link:presentationLink link:calculationLink link:definitionLink 9955602 - Disclosure - RISK MANAGEMENT AND FINANCIAL INSTRUMENTS - Level 3 Inputs (Details) link:presentationLink link:calculationLink link:definitionLink 9955603 - Disclosure - RISK MANAGEMENT AND FINANCIAL INSTRUMENTS - Changes in Level 3 (Details) link:presentationLink link:calculationLink link:definitionLink 9955604 - Disclosure - RISK MANAGEMENT AND FINANCIAL INSTRUMENTS - Other Financial Instruments (Details) link:presentationLink link:calculationLink link:definitionLink 9955605 - Disclosure - RISK MANAGEMENT AND FINANCIAL INSTRUMENTS - Restricted Long-Term Investments (Details) link:presentationLink link:calculationLink link:definitionLink 9955606 - Disclosure - INCOME TAXES - Schedule of Income Tax Rate Reconciliation (Details) link:presentationLink link:calculationLink link:definitionLink 9955607 - Disclosure - INCOME TAXES - Schedule of Components of Pretax Earnings and Income Taxes (Details) link:presentationLink link:calculationLink link:definitionLink 9955608 - Disclosure - INCOME TAXES - Schedule of Major Components of Deferred Income Tax Assets and Liabilities (Details) link:presentationLink link:calculationLink link:definitionLink 9955608 - Disclosure - INCOME TAXES - Schedule of Major Components of Deferred Income Tax Assets and Liabilities (Details) link:presentationLink link:calculationLink link:definitionLink 9955609 - Disclosure - INCOME TAXES - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955610 - Disclosure - INCOME TAXES - Schedule of Unrecognized Tax Benefits (Details) link:presentationLink link:calculationLink link:definitionLink 9955611 - Disclosure - PENSION AND OTHER POSTRETIREMENT BENEFITS - Benefit Obligation, Plan Assets and Funded Status (Details) link:presentationLink link:calculationLink link:definitionLink 9955612 - Disclosure - PENSION AND OTHER POSTRETIREMENT BENEFITS - Amount Recognized in Excess of Accumulated Other Comprehensive Income (Details) link:presentationLink link:calculationLink link:definitionLink 9955613 - Disclosure - PENSION AND OTHER POSTRETIREMENT BENEFITS - Amount Recognized in Accumulated Other Comprehensive Income (Details) link:presentationLink link:calculationLink link:definitionLink 9955614 - Disclosure - PENSION AND OTHER POSTRETIREMENT BENEFITS - Net Benefit Costs Recognized (Details) link:presentationLink link:calculationLink link:definitionLink 9955615 - Disclosure - PENSION AND OTHER POSTRETIREMENT BENEFITS - Actuarial Assumptions (Details) link:presentationLink link:calculationLink link:definitionLink 9955616 - Disclosure - PENSION AND OTHER POSTRETIREMENT BENEFITS - Assumed Health Care Cost Trend Rates (Details) link:presentationLink link:calculationLink link:definitionLink 9955617 - Disclosure - PENSION AND OTHER POSTRETIREMENT BENEFITS - Plan Assets (Details) link:presentationLink link:calculationLink link:definitionLink 9955618 - Disclosure - PENSION AND OTHER POSTRETIREMENT BENEFITS - Expected Benefit Payments and Employer Contributions (Details) link:presentationLink link:calculationLink link:definitionLink 9955619 - Disclosure - PENSION AND OTHER POSTRETIREMENT BENEFITS - Retirement Savings Plan (Details) link:presentationLink link:calculationLink link:definitionLink 9955620 - Disclosure - LEASES - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955621 - Disclosure - LEASES - Schedule of Supplemental Statements of Financial Position (Details) link:presentationLink link:calculationLink link:definitionLink 9955622 - Disclosure - LEASES - Lease Commitments (Details) link:presentationLink link:calculationLink link:definitionLink 9955622 - Disclosure - LEASES - Lease Commitments (Details) link:presentationLink link:calculationLink link:definitionLink 9955623 - Disclosure - LEASES - Lessor Lease Income (Details) link:presentationLink link:calculationLink link:definitionLink 9955624 - Disclosure - LEASES - Lessor Future Expected Lease Receipts (Details) link:presentationLink link:calculationLink link:definitionLink 9955625 - Disclosure - OTHER INCOME/(EXPENSE) (Details) link:presentationLink link:calculationLink link:definitionLink 9955626 - Disclosure - CHANGES IN OPERATING ASSETS AND LIABILITIES (Details) link:presentationLink link:calculationLink link:definitionLink 9955627 - 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