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Acquisition Of Additional Ownership Interest In Syncrude (Tables) | 12 Months Ended
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Dec. 31, 2017
Syncrude |
Disclosure of detailed information about business combination [line items] |
Purchase Price Allocation | The purchase price allocation was based on management's best estimates of fair values of Syncrude's assets and liabilities as at June 23, 2016.
($ millions) |  |  |
Accounts receivable |  | 8 |
Inventory |  | 19 |
Property, plant and equipment |  | 1 330 |
Exploration and evaluation |  | 82 |
Total assets acquired |  | 1 439 |
Accounts payable and other liabilities |  | (29) |
Employee future benefits |  | (49) |
Decommissioning provision |  | (187) |
Deferred income taxes |  | (228) |
Total liabilities assumed |  | (493) |
Net assets acquired |  | 946 |

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