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INTANGIBLE ASSETS (Tables) | 12 Months Ended
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Dec. 31, 2016
INTANGIBLE ASSETS |
Schedule of intangible assets |
|  | Weighted Average |  |  |  | Accumulated |  |  |
December 31, 2016 |  | Amortization Rate |  | Cost |  | Amortization |  | Net |
(millions of Canadian dollars) |  |  |  |  |  |  |  |  |
Software |  | 11.8% |  | 1,388 |  | 607 |  | 781 |
Natural gas supply opportunities |  | 3.2% |  | 435 |  | 127 |  | 308 |
Power purchase agreements |  | 3.2% |  | 100 |  | 14 |  | 86 |
Customer relationships |  | 3.0% |  | 251 |  | 4 |  | 247 |
Land leases, permits and other |  | 4.8% |  | 213 |  | 62 |  | 151 |
|  |  |  | 2,387 |  | 814 |  | 1,573 |
|  | Weighted Average |  |  |  | Accumulated |  |  |
December 31, 2015 |  | Amortization Rate |  | Cost |  | Amortization |  | Net |
(millions of Canadian dollars) |  |  |  |  |  |  |  |  |
Software |  | 11.6% |  | 1,295 |  | 516 |  | 779 |
Natural gas supply opportunities |  | 4.0% |  | 484 |  | 122 |  | 362 |
Power purchase agreements |  | 3.8% |  | 94 |  | 11 |  | 83 |
Land leases, permits and other |  | 4.2% |  | 163 |  | 39 |  | 124 |
|  |  |  | 2,036 |  | 688 |  | 1,348 |

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- Definition Tabular disclosure of assets, excluding financial assets and goodwill, lacking physical substance with a finite life, by either major class or business segment. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275 + Details
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