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Net Other Operating (Income) Losses (Tables) | 12 Months Ended
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Dec. 31, 2017
Analysis of income and expense [abstract] |
Disclosure of components of net other operating (income) losses | Net other operating (income) losses are comprised of the following:
Year ended Dec. 31 | 2017 |  | 2016 |  | 2015 |
Alberta Off-Coal Agreement | (40 | ) | — |  | — |
Mississauga cogeneration facility NUG Contract | (9 | ) | (191 | ) | — |
Market Surveillance Administrator Agreement settlement | — |  | — |  | 56 |
Insurance recoveries | — |  | (3 | ) | (31 | )
Net other operating (income) losses | (49 | ) | (194 | ) | 25 |

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