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SEGMENTED INFORMATION
 12 Months Ended
Dec. 31, 2017
Segment Reporting [Abstract]  
SEGMENTED INFORMATION
SEGMENTED INFORMATION
year ended December 31, 2017
Canadian Natural Gas Pipelines

 
U.S. Natural Gas Pipelines

 
Mexico Natural Gas Pipelines

 
Liquids
Pipelines

 
Energy

 
Corporate1

 
Total

(millions of Canadian $)
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Revenues
3,693

 
3,584

 
570

 
2,009

 
3,593

 
—

 
13,449

Intersegment revenues
—

 
51

 
—

 
—

 
—

 
(51
)
 
—


3,693

 
3,635

 
570

 
2,009

 
3,593

 
(51
)
 
13,449

Income from equity investments
11

 
240

 
(9
)
 
(3
)
 
471

 
63

2 
773

Plant operating costs and other
(1,300
)
 
(1,340
)
 
(42
)
 
(623
)
 
(550
)
 
(51
)
 
(3,906
)
Commodity purchases resold
—

 
—

 
—

 
—

 
(2,382
)
 
—

 
(2,382
)
Property taxes
(260
)
 
(181
)
 
—

 
(89
)
 
(39
)
 
—

 
(569
)
Depreciation and amortization
(908
)
 
(594
)
 
(93
)
 
(309
)
 
(151
)
 
—

 
(2,055
)
Goodwill and other asset impairment charges
—

 
—

 
—

 
(1,236
)
 
(21
)
 
—

 
(1,257
)
Gain on assets held for sale/sold
—

 
—

 
—

 
—

 
631

 
—

 
631

Segmented earnings/(losses)
1,236

 
1,760

 
426

 
(251
)
 
1,552

 
(39
)
 
4,684

Interest expense
 

 
 
 
 
 
 

 
 

 
 

 
(2,137
)
Allowance for funds used during construction
 
 
 
 
 
 
 
 
 
 
 
 
507

Interest income and other
 

 
 
 
 
 
 

 
 

 
 

 
183

Income before income taxes
 

 
 
 
 
 
 

 
 

 
 

 
3,237

Income tax recovery
 

 
 
 
 
 
 

 
 

 
 

 
107

Net income
 

 
 
 
 
 
 

 
 

 
 

 
3,344

Net income attributable to non-controlling interests
 
 
 
 
 
 

 
 

 
 

 
(238
)
Net income attributable to controlling interests and to common shares
 
 

 
 

 
 

 
3,106

 
 
 
 
 
 
 
 
 
 
 
 
 
 
Capital spending
 
 
 
 
 
 
 
 
 
 
 
 
 
Capital expenditures
2,106

 
3,712

 
833

 
341

 
350

 
41

 
7,383

Capital projects in development
75

 
—

 
—

 
71

 
—

 
—

 
146

Contributions to equity investments
—

 
118

 
1,121

 
117

 
325

 
—

 
1,681

 
2,181

 
3,830

 
1,954

 
529

 
675

 
41

 
9,210

1
The Company records intersegment sales at contracted rates. For segmented reporting, these transactions are included as revenues in the segment providing the service, as expenses in the segment receiving the service and are eliminated on consolidation within the Corporate segment. Intersegment profit is recognized when the product or service has been provided to third parties.
2
This Income from equity investments relates to foreign exchange gains on the Company's inter-affiliate loan with Sur de Texas. The peso-denominated loan to the Sur de Texas joint venture represents the Company's proportionate share of debt financing for this joint venture. Refer to Note 9, Equity investments, for further information.
year ended December 31, 2016
Canadian Natural Gas Pipelines

 
U.S. Natural Gas Pipelines

 
Mexico Natural Gas Pipelines

 
Liquids
Pipelines

 
Energy

 
Corporate1

 
Total

(millions of Canadian $)
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Revenues
3,682

 
2,526

 
378

 
1,755

 
4,206

 
—

 
12,547

Intersegment revenues
—

 
56

 
—

 
—

 
—

 
(56
)
 
—

 
3,682

 
2,582

 
378

 
1,755

 
4,206

 
(56
)
 
12,547

Income from equity investments
12

 
214

 
(3
)
 
(1
)
 
292

 
—

 
514

Plant operating costs and other
(1,245
)
 
(1,057
)
 
(43
)
 
(568
)
 
(884
)
 
(64
)
 
(3,861
)
Commodity purchases resold
—

 
—

 
—

 
—

 
(2,172
)
 
—

 
(2,172
)
Property taxes
(267
)
 
(120
)
 
—

 
(88
)
 
(80
)
 
—

 
(555
)
Depreciation and amortization
(875
)
 
(425
)
 
(45
)
 
(292
)
 
(302
)
 
—

 
(1,939
)
Goodwill and other asset impairment charges
—

 
—

 
—

 
—

 
(1,388
)
 
—

 
(1,388
)
Loss on assets held for sale/sold
—

 
(4
)
 
—

 
—

 
(829
)
 
—

 
(833
)
Segmented earnings/(losses)
1,307

 
1,190

 
287

 
806

 
(1,157
)
 
(120
)
 
2,313

Interest expense
 

 
 
 
 
 
 

 
 

 
 

 
(1,927
)
Allowance for funds used during construction
 
 
 
 
 
 
 
 
 
 
 
 
419

Interest income and other
 

 
 
 
 
 
 

 
 

 
 

 
117

Income before income taxes
 

 
 
 
 
 
 

 
 

 
 

 
922

Income tax expense
 

 
 
 
 
 
 

 
 

 
 

 
(349
)
Net income
 

 
 
 
 
 
 

 
 

 
 

 
573

Net income attributable to non-controlling interests
 
 
 
 
 
 

 
 

 
 

 
(252
)
Net income attributable to controlling interests and to common shares
 
 

 
 

 
 

 
321

 
 
 
 
 
 
 
 
 
 
 
 
 
 
Capital spending
 
 
 
 
 
 
 
 
 
 
 
 
 
Capital expenditures
1,372

 
1,517

 
944

 
668

 
473

 
33

 
5,007

Capital projects in development
153

 
—

 
—

 
142

 
—

 
—

 
295

Contributions to equity investments
—

 
5

 
198

 
327

 
235

 
—

 
765

 
1,525

 
1,522

 
1,142

 
1,137

 
708

 
33

 
6,067

1
The Company records intersegment sales at contracted rates. For segmented reporting, these transactions are included as revenues in the segment providing the service, as expenses in the segment receiving the service and are eliminated on consolidation within the Corporate segment. Intersegment profit is recognized when the product or service has been provided to third parties.
year ended December 31, 2015
Canadian Natural Gas Pipelines

 
U.S. Natural Gas Pipelines

 
Mexico Natural Gas Pipelines

 
Liquids
Pipelines

 
Energy

 
Corporate1

 
Total

(millions of Canadian $)
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Revenues
3,680

 
1,444

 
259

 
1,879

 
4,091

 
—

 
11,353

Intersegment revenues
—

 
47

 
—

 
—

 
—

 
(47
)
 
—

 
3,680

 
1,491

 
259

 
1,879

 
4,091

 
(47
)
 
11,353

Income from equity investments
12

 
162

 
5

 
—

 
261

 
—

 
440

Plant operating costs and other
(1,204
)
 
(606
)
 
(51
)
 
(492
)
 
(845
)
 
(105
)
 
(3,303
)
Commodity purchases resold
—

 
—

 
—

 
—

 
(2,237
)
 
—

 
(2,237
)
Property taxes
(272
)
 
(77
)
 
—

 
(79
)
 
(89
)
 
—

 
(517
)
Depreciation and amortization
(849
)
 
(248
)
 
(44
)
 
(283
)
 
(341
)
 
—

 
(1,765
)
Asset impairment charges
—

 
—

 
—

 
(3,686
)
 
(59
)
 
—

 
(3,745
)
Loss on assets held for sale/sold
—

 
(125
)
 
—

 
—

 
—

 
—

 
(125
)
Segmented earnings/(losses)
1,367

 
597

 
169

 
(2,661
)
 
781

 
(152
)
 
101

Interest expense
 

 
 
 
 
 
 

 
 

 
 

 
(1,398
)
Allowance for funds used during construction
 
 
 
 
 
 
 
 
 
 
 
 
295

Interest income and other
 

 
 
 
 
 
 

 
 

 
 

 
(103
)
Loss before income taxes
 

 
 
 
 
 
 

 
 

 
 

 
(1,105
)
Income tax expense
 

 
 
 
 
 
 

 
 

 
 

 
(35
)
Net loss
 

 
 
 
 
 
 

 
 

 
 

 
(1,140
)
Net income attributable to non-controlling interests
 
 
 
 
 
 

 
 

 
 

 
(6
)
Net loss attributable to controlling interests and to common shares
 
 

 
 

 
 

 
(1,146
)
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Capital spending
 
 
 
 
 
 
 
 
 
 
 
 
 
Capital expenditures
1,366

 
534

 
566

 
1,012

 
376

 
64

 
3,918

Capital projects in development
230

 
3

 
—

 
278

 
—

 
—

 
511

Contributions to equity investments
—

 
—

 
—

 
311

 
182

 
—

 
493

 
1,596

 
537

 
566

 
1,601

 
558

 
64

 
4,922


1
The Company records intersegment sales at contracted rates. For segmented reporting, these transactions are included as revenues in the segment providing the service, as expenses in the segment receiving the service and are eliminated on consolidation within the Corporate segment. Intersegment profit is recognized when the product or service has been provided to third parties.
at December 31
2017

 
2016

(millions of Canadian $)
 
 
 
 
Total Assets
 
 
 
Canadian Natural Gas Pipelines
16,904

 
15,816

U.S. Natural Gas Pipelines
35,898

 
34,422

Mexico Natural Gas Pipelines
5,716

 
5,013

Liquids Pipelines
15,438

 
16,896

Energy
8,503

 
13,169

Corporate
3,551

 
2,625

 
86,010

 
87,941


Geographic Information
year ended December 31
2017

 
2016

 
2015

(millions of Canadian $)
 
 
 
 
 
 
Revenues
 
 
 
 
 
Canada – domestic
3,618

 
3,697

 
3,930

Canada – export
1,255

 
1,177

 
1,292

United States
8,006

 
7,295

 
5,872

Mexico
570

 
378

 
259

 
13,449

 
12,547

 
11,353


at December 31
2017

 
2016

(millions of Canadian $)
 
 
 
 
Plant, Property and Equipment
 
 
 
Canada
21,632

 
20,531

United States
30,693

 
29,414

Mexico
4,952

 
4,530

 
57,277

 
54,475