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Cash Flow Information (Notes) | 12 Months Ended
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Dec. 31, 2018
Disclosure of cash flow statement [Abstract] |
Cash Flow Information | Cash Flow Information A. Change in Non-Cash Operating Working Capital
Year ended Dec. 31 | 2018 |  | 2017 |  | 2016 |
(Use) source: |  |  |  |  |  |
Accounts receivable | 58 |  | (228 | ) | (23 | )
Prepaid expenses | 19 |  | (75 | ) | 5 |
Income taxes receivable | — |  | 8 |  | (4 | )
Inventory | (21 | ) | (7 | ) | 11 |
Accounts payable, accrued liabilities, and provisions | (97 | ) | 186 |  | 81 |
Income taxes payable | (3 | ) | 2 |  | 3 |
Change in non-cash operating working capital | (44 | ) | (114 | ) | 73 |
B. Changes in Liabilities from Financing Activities
| Balance Dec. 31, 2017 |  | Net cash flows |  | New leases |  | Dividends declared |  | Foreign exchange impact |  | Other |  | Balance Dec. 31, 2018 |
Long-term debt and finance lease obligations | 3,707 |  | (540 | ) | 10 |  | — |  | 95 |  | (5 | ) | 3,267 |
Dividends payable (common and preferred) | 34 |  | (86 | ) | — |  | 107 |  | — |  | 3 |  | 58 |
Total liabilities from financing activities | 3,741 |  | (626 | ) | 10 |  | 107 |  | 95 |  | (2 | ) | 3,325 |
| Balance Dec. 31, 2016 |  | Net cash flows |  | New leases |  | Dividends declared |  | Foreign exchange impact |  | Other |  | Balance Dec. 31, 2017 |
Long-term debt and finance lease obligations | 4,361 |  | (545 | ) | 14 |  | — |  | (115 | ) | (8 | ) | 3,707 |
Dividends payable (common and preferred) | 54 |  | (86 | ) | — |  | 64 |  | — |  | 2 |  | 34 |
Total liabilities from financing activities | 4,415 |  | (631 | ) | 14 |  | 64 |  | (115 | ) | (6 | ) | 3,741 |

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- Definition The disclosure of the reconciliation of liabilities arising from financing activities. [Refer: Liabilities arising from financing activities] + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Name IAS -Number 7 -IssueDate 2017-01-01 -Paragraph 44D -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=7&date=2017-03-01&anchor=para_44D&doctype=Standard -URIDate 2017-03-09 + Details
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