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Segment Information (Tables) | 12 Months Ended
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Dec. 31, 2017
Segment Information [Abstract] |
Schedule of Segment Reporting Information, by Segment [Table Text Block] |
| Emera Florida |  |  |  |  |  |  | Corporate | Inter- |  |
| and New |  |  | Emera | Emera | Emera | and |  | segment |  |
millions of Canadian dollars | Mexico | NSPI | Maine | Caribbean | Energy | Other | Eliminations | Total
For the year ended December 31, 2017
Operating revenues from external customers (1) | $ | 3,623 | $ | 1,335 | $ | 297 | $ | 434 | $ | 451 | $ | 86 | $ | - | $ | 6,226
Inter-segment revenues (1) |  | - |  | 3 |  | - |  | - |  | 14 |  | 41 |  | (58) |  | -
Total operating revenues |  | 3,623 |  | 1,338 |  | 297 |  | 434 |  | 465 |  | 127 |  | (58) |  | 6,226
Allowance for funds used during construction - debt and equity |  | 5 |  | 8 |  | 3 |  | - |  | - |  | - |  | - |  | 16
Regulated fuel and fixed cost deferral adjustments |  | - |  | 59 |  | - |  | - |  | - |  | - |  | - |  | 59
Depreciation and amortization |  | 500 |  | 207 |  | 47 |  | 51 |  | 48 |  | 3 |  | - |  | 856
Interest expense (2) |  | 248 |  | 134 |  | 20 |  | 25 |  | 2 |  | 276 |  | - |  | 705
Internally allocated interest (3) |  | - |  | - |  | - |  | - |  | (24) |  | 24 |  | - |  | -
Income from equity investments |  | - |  | - |  | 1 |  | 3 |  | 24 |  | 96 |  | - |  | 124
Income tax expense (recovery) |  | 529 |  | - |  | 27 |  | - |  | 18 |  | (54) |  | - |  | 520
Net income attributable to common shareholders |  | 99 |  | 129 |  | 46 |  | 31 |  | 93 |  | (132) |  | - |  | 266
Capital expenditures |  | 910 |  | 385 |  | 82 |  | 72 |  | 47 |  | 26 |  | - |  | 1,522
As at December 31, 2017 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total assets |  | 17,216 |  | 4,979 |  | 1,505 |  | 1,251 |  | 1,575 |  | 2,331 |  | (86) |  | 28,771
Investments subject to significant influence |  | - |  | - |  | 13 |  | 39 |  | - |  | 1,163 |  | - |  | 1,215
Goodwill |  | 5,566 |  | - |  | 143 |  | 96 |  | - |  | - |  | - |  | 5,805
(1) All significant intercompany balances and intercompany transactions have been eliminated on consolidation except for certain transactions between non-regulated and regulated entities that have not been eliminated because management believes that the elimination of these transactions would understate property, plant and equipment, operating, maintenance and general expenses, or regulated fuel for generation and purchased power. Intercompany transactions which have not been eliminated are measured at the amount of consideration established and agreed to by the related parties. Eliminated transactions are included in determining reportable segments.
(2) Interest expense net of interest revenue. Corporate and Other Interest expense has also been reduced by amortization of $24 million related to the unregulated long-term debt fair market value adjustment recognized on the acquisition of TECO Energy.
(3) Segment net income is reported on a basis that includes internally allocated financing costs.
| Emera Florida |  |  |  |  |  |  | Corporate | Inter- |  |
| and New |  |  | Emera | Emera | Emera | and |  | segment |  |
millions of Canadian dollars | Mexico (2) | NSPI | Maine | Caribbean | Energy | Other | Eliminations | Total
For the year ended December 31, 2016
Operating revenues from external customers (1) | $ | 1,839 | $ | 1,354 | $ | 297 | $ | 419 | $ | 298 | $ | 69 | $ | - | $ | 4,276
Inter-segment revenues (1) |  | - |  | 2 |  | - |  | - |  | 11 |  | 24 |  | (36) |  | 1
Total operating revenues |  | 1,839 |  | 1,356 |  | 297 |  | 419 |  | 309 |  | 93 |  | (36) |  | 4,277
Allowance for funds used during construction - debt and equity |  | 28 |  | 6 |  | 1 |  | - |  | - |  | - |  | - |  | 35
Regulated fuel and fixed cost deferral adjustments |  | - |  | 61 |  | - |  | - |  | - |  | - |  | - |  | 61
Depreciation and amortization |  | 243 |  | 197 |  | 51 |  | 48 |  | 45 |  | 4 |  | - |  | 588
Interest expense (3) |  | 125 |  | 127 |  | 19 |  | 15 |  | 1 |  | 311 |  | - |  | 598
Internally allocated interest (4) |  | - |  | - |  | - |  | - |  | (24) |  | 24 |  | - |  | -
Income from equity investments |  | - |  | - |  | - |  | 3 |  | 11 |  | 86 |  | - |  | 100
Income tax expense (recovery) |  | 100 |  | 12 |  | 23 |  | 14 |  | (53) |  | (118) |  | - |  | (22)
Net income attributable to common shareholders |  | 172 |  | 130 |  | 47 |  | 100 |  | (110) |  | (112) |  | - |  | 227
Capital expenditures |  | 547 |  | 304 |  | 85 |  | 87 |  | 39 |  | 7 |  | - |  | 1,069
As at December 31, 2016 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total assets |  | 18,016 |  | 4,776 |  | 1,543 |  | 1,331 |  | 1,702 |  | 1,966 |  | (113) |  | 29,221
Investments subject to significant influence |  | - |  | - |  | 13 |  | 39 |  | - |  | 895 |  | - |  | 947
Goodwill |  | 5,957 |  | - |  | 154 |  | 102 |  | - |  | - |  | - |  | 6,213
(1) All significant intercompany balances and intercompany transactions have been eliminated on consolidation except for certain transactions between non-regulated and regulated entities that have not been eliminated because management believes that the elimination of these transactions would understate property, plant and equipment, operating, maintenance and general expenses, or regulated fuel for generation and purchased power. Intercompany transactions which have not been eliminated are measured at the amount of consideration established and agreed to by the related parties. Eliminated transactions are included in determining reportable segments.
(2) Financial results of Emera Florida and New Mexico are from July 1, 2016, the date of the acquisition.
(3) Interest expense net of interest revenue. Corporate and Other Interest expense has also been reduced by amortization of $13 million related to the unregulated long-term debt fair market value adjustment recognized on the acquisition of TECO Energy.
(4) Segment net income is reported on a basis that includes internally allocated financing costs.
Geographical Information
Revenues(1):
For the | Year ended December 31
millions of Canadian dollars |  | 2017 |  | 2016
Canada | $ | 1,464 | $ | 1,510
United States |  | 4,328 |  | 2,348
Barbados |  | 280 |  | 254
The Bahamas |  | 119 |  | 121
Dominica |  | 35 |  | 44
| $ | 6,226 | $ | 4,277
(1) Revenues are based on country of origin of the product or service sold |  |  |  |
Property Plant and Equipment:
As at | December 31 | December 31
millions of Canadian dollars | 2017 | 2016
Canada | $ | 3,995 | $ | 3,791
United States |  | 12,257 |  | 12,724
Barbados |  | 408 |  | 416
The Bahamas |  | 276 |  | 295
Dominica |  | 59 |  | 64
| $ | 16,995 | $ | 17,290

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- Definition Tabular disclosure of the profit or loss and total assets for each reportable segment. An entity discloses certain information on each reportable segment if the amounts (a) are included in the measure of segment profit or loss reviewed by the chief operating decision maker or (b) are otherwise regularly provided to the chief operating decision maker, even if not included in that measure of segment profit or loss. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 30 -URI http://asc.fasb.org/extlink&oid=68060357&loc=d3e8906-108599 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 25 -URI http://asc.fasb.org/extlink&oid=68060357&loc=d3e8813-108599 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 21 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=68060357&loc=d3e8721-108599 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -URI http://asc.fasb.org/extlink&oid=68060357&loc=d3e8736-108599 + Details
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