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Business Segments (Detail) - CAD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Revenues and other income |  |  |  |
Revenues | [1],[2] | $ 34,002 | $ 34,964 | $ 29,125
Investment and other income (note 9) |  | 99 | 135 | 299
TOTAL OPERATING REVENUES, INTERSEGMENT SALES, INVESTMENT AND OTHER INCOME |  | 34,101 | 35,099 | 29,424
Expenses |  |  |  |
Exploration (note 16) | [3] | 47 | 19 | 183
Purchases of crude oil and products | [4] | 20,946 | 21,541 | 18,145
Production and manufacturing | [5] | 6,520 | 6,121 | 5,698
Selling and general | [5] | 900 | 908 | 893
Federal excise tax and fuel charge |  | 1,808 | 1,667 | 1,673
Depreciation and depletion | [3],[6] | 1,598 | 1,555 | 2,172
Non-service pension and postretirement benefit | [5] | 143 | 107 |
Financing (note 13) | [7],[8] | 93 | 108 | 78
Total expenses |  | 32,055 | 32,026 | 28,842
Income (loss) before income taxes |  | 2,046 | 3,073 | 582
Income tax expense (benefit) (note 4) | [9],[10] | (154) | 759 | 92
Net income (loss) |  | 2,200 | 2,314 | 490
Cash flows from (used in) operating activities |  | 4,429 | 3,922 | 2,763
Capital and exploration expenditures | [11] | 1,814 | 1,427 | 671
Property, plant and equipment Cost |  | 54,868 | 53,944 | 52,778
Accumulated depreciation and depletion |  | (20,665) | (19,719) | (18,305)
Net property, plant and equipment | [12] | 34,203 | 34,225 | 34,473
Total assets | [13],[14] | 42,187 | 41,456 | 41,601
Consolidation, Eliminations |  |  |  |
Revenues and other income |  |  |  |
Intersegment sales |  | (5,589) | (4,455) | (3,681)
TOTAL OPERATING REVENUES, INTERSEGMENT SALES, INVESTMENT AND OTHER INCOME |  | (5,589) | (4,455) | (3,681)
Expenses |  |  |  |
Purchases of crude oil and products |  | (5,581) | (4,449) | (3,675)
Selling and general | [5] | (8) | (6) | (6)
Total expenses |  | (5,589) | (4,455) | (3,681)
Cash flows from (used in) operating activities |  | (7) | 19 |
Total assets | [13],[14] | (498) | (478) | (435)
Upstream |  |  |  |
Revenues and other income |  |  |  |
Revenues | [2] | 9,479 | 8,525 | 7,302
Intersegment sales |  | 3,763 | 2,634 | 2,264
Investment and other income (note 9) |  | 17 | 11 | 16
TOTAL OPERATING REVENUES, INTERSEGMENT SALES, INVESTMENT AND OTHER INCOME |  | 13,259 | 11,170 | 9,582
Expenses |  |  |  |
Exploration (note 16) | [3] | 47 | 19 | 183
Purchases of crude oil and products |  | 6,528 | 5,833 | 4,526
Production and manufacturing | [5] | 4,440 | 4,305 | 3,913
Depreciation and depletion | [3],[6] | 1,374 | 1,278 | 1,939
Financing (note 13) |  | 3 | 1 | 13
Total expenses |  | 12,392 | 11,436 | 10,574
Income (loss) before income taxes |  | 867 | (266) | (992)
Income tax expense (benefit) (note 4) | [10] | (481) | (128) | (286)
Net income (loss) |  | 1,348 | (138) | (706)
Cash flows from (used in) operating activities |  | 2,423 | 916 | 1,257
Capital and exploration expenditures | [11] | 1,248 | 991 | 416
Property, plant and equipment Cost |  | 47,050 | 46,435 | 45,542
Accumulated depreciation and depletion |  | (15,889) | (15,050) | (13,844)
Net property, plant and equipment | [12] | 31,161 | 31,385 | 31,698
Total assets | [13],[14] | 34,554 | 34,829 | 35,044
Downstream |  |  |  |
Revenues and other income |  |  |  |
Revenues | [2] | 23,591 | 25,200 | 20,714
Intersegment sales |  | 1,597 | 1,542 | 1,155
Investment and other income (note 9) |  | 47 | 95 | 269
TOTAL OPERATING REVENUES, INTERSEGMENT SALES, INVESTMENT AND OTHER INCOME |  | 25,235 | 26,837 | 22,138
Expenses |  |  |  |
Purchases of crude oil and products |  | 19,332 | 19,326 | 16,543
Production and manufacturing | [5] | 1,829 | 1,606 | 1,576
Selling and general | [5] | 774 | 773 | 772
Federal excise tax and fuel charge |  | 1,808 | 1,667 | 1,673
Depreciation and depletion | [3],[6] | 186 | 242 | 202
Financing (note 13) |  | 0 | 2 |
Total expenses |  | 23,929 | 23,616 | 20,766
Income (loss) before income taxes |  | 1,306 | 3,221 | 1,372
Income tax expense (benefit) (note 4) | [10] | 345 | 855 | 332
Net income (loss) |  | 961 | 2,366 | 1,040
Cash flows from (used in) operating activities |  | 1,965 | 2,749 | 1,396
Capital and exploration expenditures | [11] | 484 | 383 | 200
Property, plant and equipment Cost |  | 6,123 | 5,900 | 5,683
Accumulated depreciation and depletion |  | (3,830) | (3,763) | (3,594)
Net property, plant and equipment | [12] | 2,293 | 2,137 | 2,089
Total assets | [13],[14] | 5,179 | 5,119 | 4,890
Chemical |  |  |  |
Revenues and other income |  |  |  |
Revenues | [2] | 932 | 1,239 | 1,109
Intersegment sales |  | 229 | 279 | 262
TOTAL OPERATING REVENUES, INTERSEGMENT SALES, INVESTMENT AND OTHER INCOME |  | 1,161 | 1,518 | 1,371
Expenses |  |  |  |
Purchases of crude oil and products |  | 667 | 831 | 751
Production and manufacturing | [5] | 251 | 210 | 209
Selling and general | [5] | 86 | 87 | 78
Depreciation and depletion | [3],[6] | 16 | 14 | 12
Total expenses |  | 1,020 | 1,142 | 1,050
Income (loss) before income taxes |  | 141 | 376 | 321
Income tax expense (benefit) (note 4) | [10] | 33 | 101 | 86
Net income (loss) |  | 108 | 275 | 235
Cash flows from (used in) operating activities |  | 172 | 354 | 235
Capital and exploration expenditures | [11] | 34 | 25 | 17
Property, plant and equipment Cost |  | 954 | 916 | 888
Accumulated depreciation and depletion |  | (680) | (662) | (644)
Net property, plant and equipment | [12] | 274 | 254 | 244
Total assets | [13],[14] | 416 | 438 | 399
Corporate and Other |  |  |  |
Revenues and other income |  |  |  |
Investment and other income (note 9) |  | 35 | 29 | 14
TOTAL OPERATING REVENUES, INTERSEGMENT SALES, INVESTMENT AND OTHER INCOME |  | 35 | 29 | 14
Expenses |  |  |  |
Selling and general | [5] | 48 | 54 | 49
Depreciation and depletion | [3],[6] | 22 | 21 | 19
Non-service pension and postretirement benefit | [5] | 143 | 107 | 0
Financing (note 13) |  | 90 | 105 | 65
Total expenses |  | 303 | 287 | 133
Income (loss) before income taxes |  | (268) | (258) | (119)
Income tax expense (benefit) (note 4) | [10] | (51) | (69) | (40)
Net income (loss) |  | (217) | (189) | (79)
Cash flows from (used in) operating activities |  | (124) | (116) | (125)
Capital and exploration expenditures | [11] | 48 | 28 | 38
Property, plant and equipment Cost |  | 741 | 693 | 665
Accumulated depreciation and depletion |  | (266) | (244) | (223)
Net property, plant and equipment | [12] | 475 | 449 | 442
Total assets | [13],[14] | $ 2,536 | $ 1,548 | $ 1,703
[1] | Amounts from related parties included in revenues, (note 17).8,569 6,383 4,110
[2] | Includes export sales to the United States of $7,190 million (2018 - $6,661 million, 2017 - $4,392 million). Export sales to the United States were recorded in all operating segments, with the largest effects in the Upstream segment.
[3] | The Upstream segment in 2017 includes non-cash impairment charges of $396 million, before tax, associated with the Horn River development and $379 million, before tax, associated with the Mackenzie gas project. The impairment charges are recognized in the lines “Exploration” and “Depreciation and depletion” on the Consolidated statement of income, and the “Accumulated depreciation and depletion” line of the Consolidated balance sheet.
[4] | Amounts to related parties included in purchases of crude oil and products, (note 17). 3,305 4,092 2,687
[5] | As part of the implementation of Accounting Standard Update, Compensation – Retirement Benefits (Topic 715), beginning January 1, 2018, Corporate and other includes all non-service pension and postretirement benefit expense. Prior to 2018, the majority of these costs were allocated to the operating segments.
[6] | In 2018, the Downstream segment included a non-cash impairment charge of $46 million, before tax, associated with the Government of Ontario’s revocation of its cap and trade legislation.
[7] | Amounts to related parties included in financing, (note 17). 98 89 60
[8] | The weighted average interest rate on short-term borrowings in 2019 was 1.8 percent (2018 – 1.5 percent, 2017– 0.9 percent). Average effective rate on the long-term borrowings with ExxonMobil in 2019 was 2.2 percent (2018 – 2.0 percent, 2017 – 1.3 percent).
[9] | On June 28, 2019 the Alberta government enacted a 4 percent decrease in the provincial tax rate, from 12 percent to 8 percent by 2022. On November 2, 2017 the British Columbia government enacted a 1 percent increase in the provincial tax rate from 11 percent to 12 percent.
[10] | Segment results in 2019 include a largely non-cash favourable impact of $662 million associated with the Alberta corporate income tax rate decrease, with the largest impact in the Upstream segment.
[11] | Capital and exploration expenditures (CAPEX) include exploration expenses, additions to property, plant and equipment, additions to finance leases, additional investments and acquisitions. CAPEX excludes the purchase of carbon emission credits.
[12] | Includes property, plant and equipment under construction of $2,149 million (2018 - $1,553 million, 2017 - $1,047 million).
[13] | Effective January 1, 2019, Imperial adopted the Financial Accounting Standards Board’s standard, Leases (Topic 842), as amended. As at December 31, 2019, Total assets include operating lease right of use assets of $260 million. An election was made not to restate prior periods. See note 14 for additional details.
[14] | In 2019, the company removed $570 million from Total assets and corresponding liabilities in the Downstream segment associated with the Government of Ontario’s revocation of its cap and trade legislation.

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