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PROPERTY, PLANT AND EQUIPMENT (Details) (CAD) In Millions, unless otherwise specified | 12 Months Ended
--- | ---
Dec. 31, 2012 item | Dec. 31, 2011 | Dec. 31, 2010
PROPERTY, PLANT AND EQUIPMENT |  |  |
Property, plant and equipment, net | 33,318 | 29,074 |
Depreciation expense | 1,174 | 1,089 | 987
Number of crude oil storage assets sold to the Fund | 2 |  |
Number of renewable energy assets sold to the Fund | 3 |  |
Impairment charge | 166 | 11 | 11
Liquids Pipelines |  |  |
PROPERTY, PLANT AND EQUIPMENT |  |  |
Property, plant and equipment, gross | 15,243 | 13,898 |
Accumulated depreciation | (3,432) | (3,170) |
Property, plant and equipment, net | 11,811 | 10,728 |
Property, plant and equipment reclassified to Sponsored Investments | 599 | 600 |
Gas Distribution |  |  |
PROPERTY, PLANT AND EQUIPMENT |  |  |
Property, plant and equipment, gross | 7,764 | 7,062 |
Accumulated depreciation | (1,912) | (1,419) |
Property, plant and equipment, net | 5,852 | 5,643 |
Gas Pipelines, Processing and Energy Services |  |  |
PROPERTY, PLANT AND EQUIPMENT |  |  |
Property, plant and equipment, gross | 2,546 | 1,868 |
Accumulated depreciation | (350) | (213) |
Property, plant and equipment, net | 2,196 | 1,655 |
Property, plant and equipment reclassified to Sponsored Investments | 338 | 354 |
Impairment charge | 166 |  |
Impairment charge, net of tax | 105 |  |
Abandonment costs | 50 |  |
Sponsored Investments |  |  |
PROPERTY, PLANT AND EQUIPMENT |  |  |
Property, plant and equipment, gross | 15,865 | 12,990 |
Accumulated depreciation | (2,770) | (2,213) |
Property, plant and equipment, net | 13,095 | 10,777 |
Corporate |  |  |
PROPERTY, PLANT AND EQUIPMENT |  |  |
Property, plant and equipment, gross | 401 | 301 |
Accumulated depreciation | (37) | (30) |
Property, plant and equipment, net | 364 | 271 |
Pipeline | Liquids Pipelines |  |  |
PROPERTY, PLANT AND EQUIPMENT |  |  |
Weighted Average Depreciation Rate (as a percent) | 2.60% |  |
Property, plant and equipment, gross | 8,249 | 7,538 |
Pipeline | Gas Pipelines, Processing and Energy Services |  |  |
PROPERTY, PLANT AND EQUIPMENT |  |  |
Weighted Average Depreciation Rate (as a percent) | 4.60% |  |
Property, plant and equipment, gross | 544 | 568 |
Pipeline | Sponsored Investments |  |  |
PROPERTY, PLANT AND EQUIPMENT |  |  |
Weighted Average Depreciation Rate (as a percent) | 3.00% |  |
Property, plant and equipment, gross | 6,890 | 6,600 |
Pumping equipment, buildings, tanks and other | Liquids Pipelines |  |  |
PROPERTY, PLANT AND EQUIPMENT |  |  |
Weighted Average Depreciation Rate (as a percent) | 3.10% |  |
Property, plant and equipment, gross | 5,094 | 5,017 |
Pumping equipment, buildings, tanks and other | Sponsored Investments |  |  |
PROPERTY, PLANT AND EQUIPMENT |  |  |
Weighted Average Depreciation Rate (as a percent) | 3.30% |  |
Property, plant and equipment, gross | 4,787 | 3,792 |
Gas mains, services and other | Gas Distribution |  |  |
PROPERTY, PLANT AND EQUIPMENT |  |  |
Weighted Average Depreciation Rate (as a percent) | 4.30% |  |
Property, plant and equipment, gross | 7,583 | 6,846 |
Wind turbines, solar panels and other | Gas Pipelines, Processing and Energy Services |  |  |
PROPERTY, PLANT AND EQUIPMENT |  |  |
Weighted Average Depreciation Rate (as a percent) | 4.90% |  |
Property, plant and equipment, gross | 519 | 781 |
Wind turbines, solar panels and other | Sponsored Investments |  |  |
PROPERTY, PLANT AND EQUIPMENT |  |  |
Weighted Average Depreciation Rate (as a percent) | 4.00% |  |
Property, plant and equipment, gross | 1,544 | 1,074 |
Land and right-of-way | Liquids Pipelines |  |  |
PROPERTY, PLANT AND EQUIPMENT |  |  |
Weighted Average Depreciation Rate (as a percent) | 2.40% |  |
Property, plant and equipment, gross | 225 | 232 |
Land and right-of-way | Gas Distribution |  |  |
PROPERTY, PLANT AND EQUIPMENT |  |  |
Weighted Average Depreciation Rate (as a percent) | 2.50% |  |
Property, plant and equipment, gross | 79 | 79 |
Land and right-of-way | Gas Pipelines, Processing and Energy Services |  |  |
PROPERTY, PLANT AND EQUIPMENT |  |  |
Weighted Average Depreciation Rate (as a percent) | 4.90% |  |
Property, plant and equipment, gross | 6 | 7 |
Land and right-of-way | Sponsored Investments |  |  |
PROPERTY, PLANT AND EQUIPMENT |  |  |
Weighted Average Depreciation Rate (as a percent) | 2.40% |  |
Property, plant and equipment, gross | 642 | 611 |
Other | Corporate |  |  |
PROPERTY, PLANT AND EQUIPMENT |  |  |
Weighted Average Depreciation Rate (as a percent) | 9.40% |  |
Property, plant and equipment, gross | 105 | 71 |
Under construction | Liquids Pipelines |  |  |
PROPERTY, PLANT AND EQUIPMENT |  |  |
Property, plant and equipment, gross | 1,675 | 1,111 |
Under construction | Gas Distribution |  |  |
PROPERTY, PLANT AND EQUIPMENT |  |  |
Property, plant and equipment, gross | 102 | 137 |
Under construction | Gas Pipelines, Processing and Energy Services |  |  |
PROPERTY, PLANT AND EQUIPMENT |  |  |
Property, plant and equipment, gross | 1,477 | 512 |
Under construction | Sponsored Investments |  |  |
PROPERTY, PLANT AND EQUIPMENT |  |  |
Property, plant and equipment, gross | 2,002 | 913 |
Under construction | Corporate |  |  |
PROPERTY, PLANT AND EQUIPMENT |  |  |
Property, plant and equipment, gross | 296 | 230 |

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