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v3.19.3.a.u2

Property, Plant and Equipment (Tables) | 12 Months Ended
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Dec. 31, 2019
Property, plant and equipment [abstract] |
Property, Plant and Equipment |
16. | Property, Plant and Equipment
(CAD$ in millions) |  | Exploration and Evaluation |  |  | Mineral Properties |  |  | Land, Buildings, Plant and Equipment |  |  | Capitalized Production Stripping Costs |  |  | Construction In Progress |  |  | Total |
At December 31, 2017 |  |  |  |  |  |  |  |  |  |  |  |
Cost |  | $ | 1,774 |  |  | $ | 19,160 |  |  | $ | 12,948 |  |  | $ | 4,561 |  |  | $ | 5,430 |  |  | $ | 43,873 |
Accumulated depreciation |  | — |  |  | (5,359 | ) |  | (7,206 | ) |  | (2,263 | ) |  | — |  |  | (14,828 | )
Net book value |  | $ | 1,774 |  |  | $ | 13,801 |  |  | $ | 5,742 |  |  | $ | 2,298 |  |  | $ | 5,430 |  |  | $ | 29,045 |
Year ended December 31, 2018 |  |  |  |  |  |  |  |  |  |  |  |
Opening net book value |  | $ | 1,774 |  |  | $ | 13,801 |  |  | $ | 5,742 |  |  | $ | 2,298 |  |  | $ | 5,430 |  |  | $ | 29,045 |
Additions |  | 144 |  |  | 86 |  |  | 710 |  |  | 761 |  |  | 1,135 |  |  | 2,836 |
Disposals |  | — |  |  | — |  |  | (12 | ) |  | — |  |  | — |  |  | (12 | )
Asset impairments (Note 8) |  | (31 | ) |  | (6 | ) |  | (4 | ) |  | — |  |  | — |  |  | (41 | )
Depreciation and amortization |  | — |  |  | (372 | ) |  | (595 | ) |  | (543 | ) |  | — |  |  | (1,510 | )
Transfers between classifications |  | — |  |  | 1,050 |  |  | 3,307 |  |  | — |  |  | (4,357 | ) |  | — |
Decommissioning and restoration provision change in estimate |  | — |  |  | (250 | ) |  | (29 | ) |  | — |  |  | — |  |  | (279 | )
Capitalized borrowing costs (Note 10) |  | — |  |  | 108 |  |  | — |  |  | — |  |  | 185 |  |  | 293 |
Other |  | — |  |  | (2 | ) |  | 56 |  |  | — |  |  | — |  |  | 54 |
Changes in foreign exchange rates |  | 21 |  |  | 290 |  |  | 182 |  |  | 50 |  |  | 121 |  |  | 664 |
Closing net book value |  | $ | 1,908 |  |  | $ | 14,705 |  |  | $ | 9,357 |  |  | $ | 2,566 |  |  | $ | 2,514 |  |  | $ | 31,050 |
At December 31, 2018 |  |  |  |  |  |  |  |  |  |  |  |
Cost |  | $ | 1,908 |  |  | $ | 20,444 |  |  | $ | 17,452 |  |  | $ | 5,435 |  |  | $ | 2,514 |  |  | $ | 47,753 |
Accumulated depreciation |  | — |  |  | (5,739 | ) |  | (8,095 | ) |  | (2,869 | ) |  | — |  |  | (16,703 | )
Net book value |  | $ | 1,908 |  |  | $ | 14,705 |  |  | $ | 9,357 |  |  | $ | 2,566 |  |  | $ | 2,514 |  |  | $ | 31,050 |
Year ended December 31, 2019 |  |  |  |  |  |  |  |  |  |  |  |
Opening net book value |  | $ | 1,908 |  |  | $ | 14,705 |  |  | $ | 9,357 |  |  | $ | 2,566 |  |  | $ | 2,514 |  |  | $ | 31,050 |
IFRS 16 adoption (Note 20 and Note 33) |  | — |  |  | — |  |  | 280 |  |  | — |  |  | — |  |  | 280 |
Additions |  | 119 |  |  | — |  |  | 201 |  |  | 757 |  |  | 3,076 |  |  | 4,153 |
Disposals |  | — |  |  | (2 | ) |  | (53 | ) |  | — |  |  | — |  |  | (55 | )
Asset impairments (Note 8) |  | (1,129 | ) |  | (485 | ) |  | (1,008 | ) |  | (68 | ) |  | — |  |  | (2,690 | )
Depreciation and amortization |  | — |  |  | (325 | ) |  | (774 | ) |  | (592 | ) |  | — |  |  | (1,691 | )
Transfers between classifications |  | 5 |  |  | (112 | ) |  | 418 |  |  | 13 |  |  | (324 | ) |  | — |
Decommissioning and restoration provision change in estimate |  | — |  |  | 444 |  |  | 45 |  |  | — |  |  | — |  |  | 489 |
Capitalized borrowing costs (Note 10) |  | — |  |  | 115 |  |  | — |  |  | — |  |  | 160 |  |  | 275 |
Changes in foreign exchange rates |  | (18 | ) |  | (158 | ) |  | (114 | ) |  | (32 | ) |  | (134 | ) |  | (456 | )
Closing net book value |  | $ | 885 |  |  | $ | 14,182 |  |  | $ | 8,352 |  |  | $ | 2,644 |  |  | $ | 5,292 |  |  | $ | 31,355 |
At December 31, 2019 |  |  |  |  |  |  |  |  |  |  |  |
Cost |  | $ | 885 |  |  | $ | 20,155 |  |  | $ | 16,951 |  |  | $ | 6,073 |  |  | $ | 5,292 |  |  | $ | 49,356 |
Accumulated depreciation |  | — |  |  | (5,973 | ) |  | (8,599 | ) |  | (3,429 | ) |  | — |  |  | (18,001 | )
Net book value |  | $ | 885 |  |  | $ | 14,182 |  |  | $ | 8,352 |  |  | $ | 2,644 |  |  | $ | 5,292 |  |  | $ | 31,355 |
a) | Exploration and Evaluation
Significant exploration and evaluation projects in property, plant and equipment include Galore Creek and non-Fort Hills oil sands properties in Alberta.
b) | Borrowing Costs
Borrowing costs are capitalized at a rate based on our weighted average cost of borrowing or at the rate on the project-specific debt, as applicable. Capitalized borrowing costs are classified with the asset they relate to within mineral properties, land, buildings, plant and equipment, or construction in progress. Our weighted average borrowing rate used for capitalization of borrowing costs in 2019 was 5.9% (2018 – 5.9%).

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