XML 174 R78.htm IDEA: XBRL DOCUMENT
v3.19.3.a.u2

SEGMENTED INFORMATION (Details) - CAD ($) $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2019 | Sep. 30, 2019 | Jun. 30, 2019 | Mar. 31, 2019 | Dec. 31, 2018 | Sep. 30, 2018 | Jun. 30, 2018 | Mar. 31, 2018 | Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Segmented Information |  |  |  |  |  |  |  |  |  |  |
Total operating revenues | $ 12,352 | $ 11,598 | $ 13,263 | $ 12,856 | $ 11,562 | $ 11,345 | $ 10,745 | $ 12,726 | $ 50,069 | $ 46,378 | $ 44,378
Commodity and gas distribution costs |  |  |  |  |  |  |  |  | (31,004) | (29,401) | (28,637)
Operating and administrative |  |  |  |  |  |  |  |  | (6,991) | (6,792) | (6,442)
Impairment of long-lived assets |  |  |  |  |  |  |  |  | (423) | (1,104) | (4,463)
Impairment of goodwill |  |  |  |  |  |  |  |  | 0 | (1,019) | (102)
Income/(loss) from equity investments |  |  |  |  |  |  |  |  | 1,503 | 1,509 | 1,102
Other income/(expense) |  |  |  |  |  |  |  |  | 435 | (52) | 452
Earnings/(loss) before interest, income tax expense, and depreciation and amortization |  |  |  |  |  |  |  |  | 13,589 | 9,519 | 6,288
Depreciation and amortization |  |  |  |  |  |  |  |  | (3,391) | (3,246) | (3,163)
Interest expense |  |  |  |  |  |  |  |  | (2,663) | (2,703) | (2,556)
Income tax (expense) recovery |  |  |  |  |  |  |  |  | (1,708) | (237) | 2,697
Earnings |  |  |  |  |  |  |  |  | 5,827 | 3,333 | 3,266
Capital expenditures |  |  |  |  |  |  |  |  | 5,550 | 6,872 | 8,422
Property, plant and equipment, net | 93,723 |  |  |  | 94,540 |  |  |  | 93,723 | 94,540 |
Liquids Pipelines |  |  |  |  |  |  |  |  |  |  |
Segmented Information |  |  |  |  |  |  |  |  |  |  |
Impairment of goodwill |  |  |  |  |  |  |  |  |  | 0 |
Gas Distribution and Storage |  |  |  |  |  |  |  |  |  |  |
Segmented Information |  |  |  |  |  |  |  |  |  |  |
Impairment of goodwill |  |  |  |  |  |  |  |  |  | 0 |
Renewable Power Generation |  |  |  |  |  |  |  |  |  |  |
Segmented Information |  |  |  |  |  |  |  |  |  |  |
Impairment of goodwill |  |  |  |  |  |  |  |  |  | 0 |
Business segments | Liquids Pipelines |  |  |  |  |  |  |  |  |  |  |
Segmented Information |  |  |  |  |  |  |  |  |  |  |
Total operating revenues |  |  |  |  |  |  |  |  | 10,219 | 8,079 | 8,913
Commodity and gas distribution costs |  |  |  |  |  |  |  |  | (29) | (16) | (18)
Operating and administrative |  |  |  |  |  |  |  |  | (3,298) | (3,124) | (2,949)
Impairment of long-lived assets |  |  |  |  |  |  |  |  | (21) | (180) | 0
Impairment of goodwill |  |  |  |  |  |  |  |  |  | 0 | 0
Income/(loss) from equity investments |  |  |  |  |  |  |  |  | 780 | 577 | 416
Other income/(expense) |  |  |  |  |  |  |  |  | 30 | (5) | 33
Earnings/(loss) before interest, income tax expense, and depreciation and amortization |  |  |  |  |  |  |  |  | 7,681 | 5,331 | 6,395
Capital expenditures |  |  |  |  |  |  |  |  | 2,548 | 3,102 | 2,799
Property, plant and equipment, net | 48,783 |  |  |  | 49,214 |  |  |  | 48,783 | 49,214 |
Business segments | Gas Transmission and Midstream |  |  |  |  |  |  |  |  |  |  |
Segmented Information |  |  |  |  |  |  |  |  |  |  |
Total operating revenues |  |  |  |  |  |  |  |  | 5,207 | 6,571 | 7,067
Commodity and gas distribution costs |  |  |  |  |  |  |  |  | 0 | (1,481) | (2,834)
Operating and administrative |  |  |  |  |  |  |  |  | (2,232) | (2,102) | (1,756)
Impairment of long-lived assets |  |  |  |  |  |  |  |  | (105) | (914) | (4,463)
Impairment of goodwill |  |  |  |  |  |  |  |  |  | (1,019) | (102)
Income/(loss) from equity investments |  |  |  |  |  |  |  |  | 682 | 930 | 653
Other income/(expense) |  |  |  |  |  |  |  |  | (181) | 349 | 166
Earnings/(loss) before interest, income tax expense, and depreciation and amortization |  |  |  |  |  |  |  |  | 3,371 | 2,334 | (1,269)
Capital expenditures |  |  |  |  |  |  |  |  | 1,753 | 2,644 | 4,016
Property, plant and equipment, net | 25,268 |  |  |  | 25,601 |  |  |  | 25,268 | 25,601 |
Business segments | Gas Distribution and Storage |  |  |  |  |  |  |  |  |  |  |
Segmented Information |  |  |  |  |  |  |  |  |  |  |
Total operating revenues |  |  |  |  |  |  |  |  | 5,179 | 5,470 | 4,992
Commodity and gas distribution costs |  |  |  |  |  |  |  |  | (2,354) | (2,748) | (2,689)
Operating and administrative |  |  |  |  |  |  |  |  | (1,149) | (1,111) | (960)
Impairment of long-lived assets |  |  |  |  |  |  |  |  | 0 | 0 | 0
Impairment of goodwill |  |  |  |  |  |  |  |  |  | 0 | 0
Income/(loss) from equity investments |  |  |  |  |  |  |  |  | 4 | 11 | 23
Other income/(expense) |  |  |  |  |  |  |  |  | 67 | 89 | 24
Earnings/(loss) before interest, income tax expense, and depreciation and amortization |  |  |  |  |  |  |  |  | 1,747 | 1,711 | 1,390
Capital expenditures |  |  |  |  |  |  |  |  | 1,100 | 1,066 | 1,177
Property, plant and equipment, net | 15,622 |  |  |  | 15,148 |  |  |  | 15,622 | 15,148 |
Business segments | Renewable Power Generation |  |  |  |  |  |  |  |  |  |  |
Segmented Information |  |  |  |  |  |  |  |  |  |  |
Total operating revenues |  |  |  |  |  |  |  |  | 567 | 567 | 534
Commodity and gas distribution costs |  |  |  |  |  |  |  |  | (2) | (7) | 0
Operating and administrative |  |  |  |  |  |  |  |  | (189) | (157) | (163)
Impairment of long-lived assets |  |  |  |  |  |  |  |  | (297) | (4) | 0
Impairment of goodwill |  |  |  |  |  |  |  |  |  | 0 | 0
Income/(loss) from equity investments |  |  |  |  |  |  |  |  | 31 | (28) | 6
Other income/(expense) |  |  |  |  |  |  |  |  | 1 | (2) | (5)
Earnings/(loss) before interest, income tax expense, and depreciation and amortization |  |  |  |  |  |  |  |  | 111 | 369 | 372
Capital expenditures |  |  |  |  |  |  |  |  | 23 | 33 | 321
Property, plant and equipment, net | 3,658 |  |  |  | 4,335 |  |  |  | 3,658 | 4,335 |
Business segments | Energy Services |  |  |  |  |  |  |  |  |  |  |
Segmented Information |  |  |  |  |  |  |  |  |  |  |
Total operating revenues |  |  |  |  |  |  |  |  | 29,374 | 26,228 | 23,282
Commodity and gas distribution costs |  |  |  |  |  |  |  |  | (29,091) | (25,689) | (23,508)
Operating and administrative |  |  |  |  |  |  |  |  | (44) | (73) | (47)
Impairment of long-lived assets |  |  |  |  |  |  |  |  | 0 | 0 | 0
Impairment of goodwill |  |  |  |  |  |  |  |  |  | 0 | 0
Income/(loss) from equity investments |  |  |  |  |  |  |  |  | 8 | 18 | 8
Other income/(expense) |  |  |  |  |  |  |  |  | 3 | (2) | 2
Earnings/(loss) before interest, income tax expense, and depreciation and amortization |  |  |  |  |  |  |  |  | 250 | 482 | (263)
Capital expenditures |  |  |  |  |  |  |  |  | 2 | 0 | 1
Property, plant and equipment, net | 24 |  |  |  | 22 |  |  |  | 24 | 22 |
Intersegment revenue |  |  |  |  |  |  |  |  |  |  |
Segmented Information |  |  |  |  |  |  |  |  |  |  |
Total operating revenues |  |  |  |  |  |  |  |  | (477) | (537) | (410)
Commodity and gas distribution costs |  |  |  |  |  |  |  |  | 472 | 540 | 412
Operating and administrative |  |  |  |  |  |  |  |  | (79) | (225) | (567)
Impairment of long-lived assets |  |  |  |  |  |  |  |  | 0 | (6) | 0
Impairment of goodwill |  |  |  |  |  |  |  |  |  | 0 | 0
Income/(loss) from equity investments |  |  |  |  |  |  |  |  | (2) | 1 | (4)
Other income/(expense) |  |  |  |  |  |  |  |  | 515 | (481) | 232
Earnings/(loss) before interest, income tax expense, and depreciation and amortization |  |  |  |  |  |  |  |  | 429 | (708) | (337)
Capital expenditures |  |  |  |  |  |  |  |  | 124 | 27 | $ 108
Property, plant and equipment, net | $ 368 |  |  |  | $ 220 |  |  |  | $ 368 | $ 220 |
Customer Concentration Risk | Sales Revenue, Net | Largest Non-Affiliated Customer |  |  |  |  |  |  |  |  |  |  |
Out of period adjustments |  |  |  |  |  |  |  |  |  |  |
Concentration (percent) |  |  |  |  |  |  |  |  |  |  | 11.80%

X
- Definition This element represents the income or loss from continuing operations attributable to the economic entity which may also be defined as revenue less expenses from ongoing operations, after income or loss from equity method investments, but before interest, income taxes, extraordinary items, and noncontrolling interest. + References No definition available. + Details
Name: | enb_IncomeLossFromContinuingOperationsBeforeInterestIncomeTaxesExtraordinaryItemsNoncontrollingInterest
Namespace Prefix: | enb_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- References No definition available. + Details
Name: | enb_OutOfPeriodAdjustmentAbstract
Namespace Prefix: | enb_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Payments of Capital Expenditures, including Allowance for Equity Method Investments + References No definition available. + Details
Name: | enb_PaymentsofCapitalExpendituresincludingAllowanceforEquityMethodInvestments
Namespace Prefix: | enb_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 18 -URI http://asc.fasb.org/extlink&oid=99393423&loc=d3e6351-108592 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=118260190&loc=d3e13531-108611 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 21 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=118260190&loc=d3e13537-108611 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=99393423&loc=d3e6404-108592 + Details
Name: | us-gaap_ConcentrationRiskPercentage1
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition The aggregate cost of goods produced and sold and services rendered during the reporting period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.2) -URI http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227 + Details
Name: | us-gaap_CostOfRevenue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The aggregate expense recognized in the current period that allocates the cost of tangible assets, intangible assets, or depleting assets to periods that benefit from use of the assets. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8736-108599 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3602-108585 + Details
Name: | us-gaap_DepreciationDepletionAndAmortization
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The aggregate total of expenses of managing and administering the affairs of an entity, including affiliates of the reporting entity, which are not directly or indirectly associated with the manufacture, sale or creation of a product or product line. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.4) -URI http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227 + Details
Name: | us-gaap_GeneralAndAdministrativeExpense
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=108376223&loc=d3e13854-109267 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3602-108585 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=108376223&loc=d3e13816-109267 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=99380562&loc=d3e13777-109266 + Details
Name: | us-gaap_GoodwillImpairmentLoss
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of income (loss) for proportionate share of equity method investee's income (loss). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(12)) -URI http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04(10)) -URI http://asc.fasb.org/extlink&oid=116637232&loc=SL114874131-224263 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3602-108585 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04(13)(f)) -URI http://asc.fasb.org/extlink&oid=116637391&loc=SL114874048-224260 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8736-108599 Reference 6: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=109237563&loc=d3e33749-111570 + Details
Name: | us-gaap_IncomeLossFromEquityMethodInvestments
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -Subparagraph (h) -URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8736-108599 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08(h)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 20 -Section 45 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=109238882&loc=d3e38679-109324 + Details
Name: | us-gaap_IncomeTaxExpenseBenefit
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of the cost of borrowed funds accounted for as interest expense. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6450988&loc=d3e26243-108391 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=114775744&loc=d3e28555-108399 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8736-108599 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (210.5-03(11)) -URI http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227 Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04.9) -URI http://asc.fasb.org/extlink&oid=116637391&loc=SL114874048-224260 + Details
Name: | us-gaap_InterestExpense
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The aggregate amount of income or expense from ancillary business-related activities (that is to say, excluding major activities considered part of the normal operations of the business). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.7) -URI http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227 + Details
Name: | us-gaap_NonoperatingIncomeExpense
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 1A -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=118930883&loc=SL7669619-108580 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=109239629&loc=SL4573702-111684 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 1B -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=118930883&loc=SL7669625-108580 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=109239629&loc=SL4573702-111684 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8736-108599 Reference 6: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 55 -Paragraph 4J -URI http://asc.fasb.org/extlink&oid=116874947&loc=SL4591551-111686 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3000-108585 Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 45 -Paragraph 19 -URI http://asc.fasb.org/extlink&oid=108774443&loc=SL4569616-111683 Reference 9: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 32 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8933-108599 Reference 10: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 55 -Paragraph 4K -URI http://asc.fasb.org/extlink&oid=116874947&loc=SL4591552-111686 + Details
Name: | us-gaap_ProfitLoss
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(14)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(8)) -URI http://asc.fasb.org/extlink&oid=119400593&loc=d3e572229-122910 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(13)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_PropertyPlantAndEquipmentNet
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8736-108599 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 32 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8933-108599 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8736-108599 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(1)) -URI http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227 + Details
Name: | us-gaap_Revenues
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_SegmentReportingInformationLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The charge against earnings resulting from the aggregate write down of tangible assets from their carrying value to their fair value. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=109226691&loc=d3e2921-110230 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=109222650&loc=d3e1361-107760 + Details
Name: | us-gaap_TangibleAssetImpairmentCharges
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=enb_LiquidsPipelinesSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=enb_GasDistributionandStorageSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=enb_RenewablePowerGenerationSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ConsolidationItemsAxis=us-gaap_OperatingSegmentsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=enb_GasPipelinesAndProcessingMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=enb_EnergyServicesConsolidateMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ConsolidationItemsAxis=us-gaap_IntersegmentEliminationMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ConcentrationRiskByTypeAxis=us-gaap_CustomerConcentrationRiskMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ConcentrationRiskByBenchmarkAxis=us-gaap_SalesRevenueNetMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_MajorCustomersAxis=enb_LargestNonAffiliatedCustomerMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |