0000001 - Document - Cover Page link:presentationLink link:calculationLink link:definitionLink 9952151 - Statement - Unaudited Interim Condensed Consolidated Statements of Operations link:presentationLink link:calculationLink link:definitionLink 9952152 - Statement - Unaudited Interim Condensed Consolidated Statements of Comprehensive Income link:presentationLink link:calculationLink link:definitionLink 9952153 - Statement - Unaudited Interim Condensed Consolidated Statements of Comprehensive Income (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 9952154 - Statement - Unaudited Interim Condensed Consolidated Balance Sheets link:presentationLink link:calculationLink link:definitionLink 9952155 - Statement - Unaudited Interim Condensed Consolidated Statements of Equity link:presentationLink link:calculationLink link:definitionLink 9952156 - Statement - Unaudited Interim Condensed Consolidated Statements of Cash Flows link:presentationLink link:calculationLink link:definitionLink 9952157 - Disclosure - Notes to the Consolidated Financial Statements link:presentationLink link:calculationLink link:definitionLink 9952158 - Disclosure - Significant accounting policies link:presentationLink link:calculationLink link:definitionLink 9952159 - Disclosure - Recently issued accounting pronouncements link:presentationLink link:calculationLink link:definitionLink 9952160 - Disclosure - Business acquisitions and dispositions link:presentationLink link:calculationLink link:definitionLink 9952161 - Disclosure - Trade and other receivables link:presentationLink link:calculationLink link:definitionLink 9952162 - Disclosure - Regulatory matters link:presentationLink link:calculationLink link:definitionLink 9952163 - Disclosure - Long-term investments link:presentationLink link:calculationLink link:definitionLink 9952164 - Disclosure - Long-term debt link:presentationLink link:calculationLink link:definitionLink 9952165 - Disclosure - Pension and other post-employment benefits link:presentationLink link:calculationLink link:definitionLink 9952166 - Disclosure - Shareholders' capital link:presentationLink link:calculationLink link:definitionLink 9952167 - Disclosure - Accumulated other comprehensive income (loss) link:presentationLink link:calculationLink link:definitionLink 9952168 - Disclosure - Income taxes link:presentationLink link:calculationLink link:definitionLink 9952169 - Disclosure - Other net losses link:presentationLink link:calculationLink link:definitionLink 9952170 - Disclosure - Basic and diluted net earnings (loss) per share link:presentationLink link:calculationLink link:definitionLink 9952171 - Disclosure - Segmented information link:presentationLink link:calculationLink link:definitionLink 9952172 - Disclosure - Commitments and contingencies link:presentationLink link:calculationLink link:definitionLink 9952173 - Disclosure - Non-cash operating items link:presentationLink link:calculationLink link:definitionLink 9952174 - Disclosure - Financial instruments link:presentationLink link:calculationLink link:definitionLink 9952175 - Disclosure - Disposition of renewable energy business link:presentationLink link:calculationLink link:definitionLink 9952176 - Disclosure - Comparative figures link:presentationLink link:calculationLink link:definitionLink 9955511 - Disclosure - Significant accounting policies (Policies) link:presentationLink link:calculationLink link:definitionLink 9955512 - Disclosure - Regulatory matters (Tables) link:presentationLink link:calculationLink link:definitionLink 9955513 - Disclosure - Long-term investments (Tables) link:presentationLink link:calculationLink link:definitionLink 9955514 - Disclosure - Long-term debt (Tables) link:presentationLink link:calculationLink link:definitionLink 9955515 - Disclosure - Pension and other post-employment benefits (Tables) link:presentationLink link:calculationLink link:definitionLink 9955516 - Disclosure - Shareholders' capital (Tables) link:presentationLink link:calculationLink link:definitionLink 9955517 - Disclosure - Accumulated other comprehensive income (loss) (Tables) link:presentationLink link:calculationLink link:definitionLink 9955518 - Disclosure - Income taxes (Tables) link:presentationLink link:calculationLink link:definitionLink 9955519 - Disclosure - Other net losses (Tables) link:presentationLink link:calculationLink link:definitionLink 9955520 - Disclosure - Basic and diluted net earnings (loss) per share (Tables) link:presentationLink link:calculationLink link:definitionLink 9955521 - Disclosure - Segmented information (Tables) link:presentationLink link:calculationLink link:definitionLink 9955522 - Disclosure - Non-cash operating items (Tables) link:presentationLink link:calculationLink link:definitionLink 9955523 - Disclosure - Financial instruments (Tables) link:presentationLink link:calculationLink link:definitionLink 9955524 - Disclosure - Disposition of renewable energy business (Tables) link:presentationLink link:calculationLink link:definitionLink 9955525 - Disclosure - Notes to the Consolidated Financial Statements - Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink 9955526 - Disclosure - Significant accounting policies - Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink 9955527 - Disclosure - Trade and other receivables (Details) link:presentationLink link:calculationLink link:definitionLink 9955528 - Disclosure - Regulatory Matters - Regulatory Proceedings (Details) link:presentationLink link:calculationLink link:definitionLink 9955529 - Disclosure - Regulatory matters - Schedule of Regulatory Assets and Liabilities (Details) link:presentationLink link:calculationLink link:definitionLink 9955530 - Disclosure - Regulatory Matters - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955531 - Disclosure - Regulatory Matters - Regulatory Assets and Liabilities - Footnote (Details) link:presentationLink link:calculationLink link:definitionLink 9955532 - Disclosure - Long-term investments - Schedule of Long-Term Investments (Details) link:presentationLink link:calculationLink link:definitionLink 9955533 - Disclosure - Long-term investments - Schedule of Income from Long-term Investments (Details) link:presentationLink link:calculationLink link:definitionLink 9955534 - Disclosure - Long-term investments - Footnote Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955535 - Disclosure - Long-term debt - Schedule of Long-term Debt (Details) link:presentationLink link:calculationLink link:definitionLink 9955536 - Disclosure - Long-term debt - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955537 - Disclosure - Long-term debt - Schedule of Bank Credit Facilities Available to AQN and its Operating Groups (Details) link:presentationLink link:calculationLink link:definitionLink 9955538 - Disclosure - Long-term debt - Schedule of Interest Expense (Details) link:presentationLink link:calculationLink link:definitionLink 9955539 - Disclosure - Pension and other post-employment benefits - Schedule of Components of Net Benefit Costs for Pension Plans and OPEB Recorded as Part of Administrative Expenses (Details) link:presentationLink link:calculationLink link:definitionLink 9955540 - Disclosure - Shareholders' capital - Schedule of Common Shares (Details) link:presentationLink link:calculationLink link:definitionLink 9955541 - Disclosure - Shareholders' capital - Schedule of Dividends (Details) link:presentationLink link:calculationLink link:definitionLink 9955542 - Disclosure - Accumulated other comprehensive income (loss) (Details) link:presentationLink link:calculationLink link:definitionLink 9955543 - Disclosure - Income taxes - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955544 - Disclosure - Income taxes - Schedule of Provision for Income Taxes (Details) link:presentationLink link:calculationLink link:definitionLink 9955545 - Disclosure - Other net losses (Details) link:presentationLink link:calculationLink link:definitionLink 9955546 - Disclosure - Basic and diluted net earnings (loss) per share - Schedule of Earnings (Loss) per Share (Details) link:presentationLink link:calculationLink link:definitionLink 9955547 - Disclosure - Basic and diluted net earnings (loss) per share - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955548 - Disclosure - Segmented information - Schedule of Results of Operations and Assets for Segments (Details) link:presentationLink link:calculationLink link:definitionLink 9955549 - Disclosure - Segmented information - Schedule of Information on Operations by Geographic Area (Details) link:presentationLink link:calculationLink link:definitionLink 9955550 - Disclosure - Commitments and contingencies - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955551 - Disclosure - Non-cash operating items (Details) link:presentationLink link:calculationLink link:definitionLink 9955552 - Disclosure - Financial instruments - Schedule of Fair Value of Financial Instruments (Details) link:presentationLink link:calculationLink link:definitionLink 9955553 - Disclosure - Financial instruments - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955554 - Disclosure - Financial instruments - Schedule of Derivative Instruments Designated as Amortized into Hedged Activity (Details) link:presentationLink link:calculationLink link:definitionLink 9955555 - Disclosure - Financial instruments - Schedule of Derivative Financial Instruments Designated as Cash Flow Hedge, Effect on Statement of Operations (Details) link:presentationLink link:calculationLink link:definitionLink 9955556 - Disclosure - Financial instruments - Schedule of Effects on Statement of Operations of Derivative Financial Instruments Not Designated as Hedges (Details) link:presentationLink link:calculationLink link:definitionLink 9955557 - Disclosure - Disposition of renewable energy business - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955558 - Disclosure - Disposition of renewable energy business - Schedule of Consolidated Balance Sheet (Details) link:presentationLink link:calculationLink link:definitionLink 9955559 - Disclosure - Disposition of renewable energy business - Schedule of Statement of Operations (Details) link:presentationLink link:calculationLink link:definitionLink 9955560 - Disclosure - Disposition of renewable energy business - Schedule of Cash Flows (Details) link:presentationLink link:calculationLink link:definitionLink