SEGMENTED INFORMATION

12 Months Ended

Dec. 31, 2016

Segment Reporting [Abstract]

SEGMENTED INFORMATION

SEGMENTED INFORMATION

As a result of the acquisition of Columbia and the pending monetization of the U.S. Northeast power business, the Company has changed its reporting segments. TCPL has six reportable segments, namely, Canadian Natural Gas Pipelines, U.S. Natural Gas Pipelines, Mexico Natural Gas Pipelines, Liquids Pipelines, Energy and Corporate. The Corporate segment is non-operational, consisting of corporate and administrative functions. This provides information that is aligned with the CODM's review of business performance and how decisions about business segments are made. Historical financial results for the years ended December 31, 2015 and 2014 have been adjusted to align with this change in the Company's segmented reporting.

year ended December 31, 2016	Canadian Natural Gas Pipelines		U.S. Natural Gas Pipelines		Mexico Natural Gas Pipelines		Liquids Pipelines		Energy		Corporate		Total
(millions of Canadian $)
Revenues	3,682		2,526		378		1,755		4,164		—		12,505
Income from equity investments	12		214		(3	)	(1	)	292		—		514
Plant operating costs and other	(1,181	)	(1,000	)	(42	)	(554	)	(834	)	(208	)	(3,819	)
Commodity purchases resold	—		—		—		—		(2,172	)	—		(2,172	)
Property taxes	(267	)	(120	)	—		(88	)	(80	)	—		(555	)
Depreciation and amortization	(873	)	(397	)	(43	)	(285	)	(293	)	(48	)	(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)	1,373		1,219		290		827		(1,140	)	(256	)	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
	1,525		1,517		944		810		473		33		5,302

year ended December 31, 2015	Canadian Natural Gas Pipelines		U.S. Natural Gas Pipelines		Mexico Natural Gas Pipelines		Liquids Pipelines		Energy		Corporate		Total
(millions of Canadian $)
Revenues	3,680		1,444		259		1,879		4,038		—		11,300
Income from equity investments	12		162		5		—		261		—		440
Plant operating costs and other	(1,162	)	(555	)	(49	)	(491	)	(786	)	(207	)	(3,250	)
Commodity purchases resold	—		—		—		—		(2,237	)	—		(2,237	)
Property taxes	(272	)	(77	)	—		(79	)	(89	)	—		(517	)
Depreciation and amortization	(845	)	(243	)	(44	)	(266	)	(336	)	(31	)	(1,765	)
Asset impairment charges	—		—		—		(3,686	)	(59	)	—		(3,745	)
Loss on assets held for sale/sold	—		(125	)	—		—		—		—		(125	)
Segmented earnings/(losses)	1,413		606		171		(2,643	)	792		(238	)	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
	1,596		537		566		1,290		376		64		4,429

year ended December 31, 2014	Canadian Natural Gas Pipelines		U.S. Natural Gas Pipelines		Mexico Natural Gas Pipelines		Liquids Pipelines		Energy		Corporate		Total
(millions of Canadian $)
Revenues	3,557		1,159		197		1,547		3,725		—		10,185
Income from equity investments	12		143		8		—		359		—		522
Plant operating costs and other	(1,028	)	(467	)	(41	)	(439	)	(934	)	(64	)	(2,973	)
Commodity purchases resold	—		—		—		—		(1,836	)	—		(1,836	)
Property taxes	(266	)	(68	)	—		(62	)	(77	)	—		(473	)
Depreciation and amortization	(821	)	(211	)	(31	)	(216	)	(309	)	(23	)	(1,611	)
Gain on assets held for sale/sold			—		9		—		108		—		117
Segmented earnings/(losses)	1,454		556		142		830		1,036		(87	)	3,931
Interest expense													(1,235	)
Allowance for funds used during construction													136
Interest income and other													(8	)
Income before income taxes													2,824
Income tax expense													(830	)
Net income													1,994
Net income attributable to non-controlling interests													(151	)
Net income attributable to controlling interests													1,843
Preferred share dividends													(2	)
Net income attributable to common shares													1,841
Capital spending
Capital expenditures	814		237		717		1,469		206		46		3,489
Capital projects in development	327		40		1		480		—		—		848
	1,141		277		718		1,949		206		46		4,337

at December 31	2016	2015
(millions of Canadian $)
Total Assets
Canadian Natural Gas Pipelines	15,816	15,038
U.S. Natural Gas Pipelines	34,422	12,207
Mexico Natural Gas Pipelines	5,013	3,787
Liquids Pipelines	16,896	16,046
Energy	13,169	15,614
Corporate	2,625	4,152
	87,941	66,844

Geographic Information

year ended December 31	2016	2015	2014
(millions of Canadian $)
Revenues
Canada – domestic	3,655	3,877	3,956
Canada – export	1,177	1,292	1,314
United States	7,295	5,872	4,718
Mexico	378	259	197
	12,505	11,300	10,185

at December 31	2016	2015
(millions of Canadian $)
Plant, Property and Equipment
Canada	20,531	19,287
United States	29,414	21,899
Mexico	4,530	3,631
	54,475	44,817