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Cash Flow Information Changes in Liabilities from Financing Activities (Details) - CAD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018
Disclosure of reconciliation of liabilities arising from financing activities [line items] |  |
Balance at beginning of the period | $ 3,325 | $ 3,741
Net cash flows | 195 | (626)
New leases | 133 | 10
Tax shield on tax equity financing | (35) |
Dividends declared | 64 | 107
Foreign exchange impact | (42) | 95
Other | (65) | (2)
Balance at end of the period | 3,575 | 3,325
Long-term debt and lease obligations |  |
Disclosure of reconciliation of liabilities arising from financing activities [line items] |  |
Balance at beginning of the period | 3,267 | 3,707
Net cash flows | (70) | (540)
New leases | 133 | 10
Tax shield on tax equity financing | (35) |
Dividends declared | 0 | 0
Foreign exchange impact | (42) | 95
Other | (41) | (5)
Balance at end of the period | 3,212 | 3,267
Exchangeable securities |  |
Disclosure of reconciliation of liabilities arising from financing activities [line items] |  |
Balance at beginning of the period | 0 |
Net cash flows | 350 |
New leases | 0 |
Tax shield on tax equity financing | 0 |
Dividends declared | 0 |
Foreign exchange impact | 0 |
Other | (24) |
Balance at end of the period | 326 | 0
Dividends payable (common and preferred) |  |
Disclosure of reconciliation of liabilities arising from financing activities [line items] |  |
Balance at beginning of the period | 58 | 34
Net cash flows | (85) | (86)
New leases | 0 | 0
Tax shield on tax equity financing | 0 |
Dividends declared | 64 | 107
Foreign exchange impact | 0 | 0
Other | 0 | 3
Balance at end of the period | $ 37 | $ 58

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- Definition The amount of liabilities for which cash flows were, or future cash flows will be, classified in the statement of cash flows as cash flows from financing activities. [Refer: Cash flows from (used in) financing activities; Liabilities] + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Name IAS -Number 7 -IssueDate 2018-01-01 -Paragraph 44D -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=7&date=2018-03-01&anchor=para_44D&doctype=Standard -URIDate 2018-03-16 + Details
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