REVENUES (Tables)

3 Months Ended

Mar. 31, 2019

Revenue from Contract with Customer [Abstract]

Disaggregation of Revenue

	Liquids Pipelines	Gas Transmission and Midstream	Gas Distribution	Renewable Power Generation and Transmission	Energy Services	Eliminations and Other		Consolidated
Three months ended March 31, 2019
(millions of Canadian dollars)
Transportation revenues	2,214	1,137	249	—	—	—		3,600
Storage and other revenues	27	53	54	—	—	—		134
Gas gathering and processing revenues	—	116	—	—	—	—		116
Gas distribution revenue	—	—	1,856	—	—	—		1,856
Electricity and transmission revenues	—	—	—	50	—	—		50
Total revenue from contracts with customers	2,241	1,306	2,159	50	—	—		5,756
Commodity sales	—	—	—	—	6,632	—		6,632
Other revenues1,2	340	10	29	102	6	(19	)	468
Intersegment revenues	77	2	3	—	35	(117	)	—
Total revenues	2,658	1,318	2,191	152	6,673	(136	)	12,856

	Liquids Pipelines		Gas Transmission and Midstream	Gas Distribution	Renewable Power Generation and Transmission	Energy Services	Eliminations and Other		Consolidated
Three months ended March 31, 2018
(millions of Canadian dollars)
Transportation revenues	2,058		952	239	—	—	—		3,249
Storage and other revenues	40		60	66	—	—	—		166
Gas gathering and processing revenues	—		205	—	—	—	—		205
Gas distribution revenues	—		—	1,926	—	—	—		1,926
Electricity and transmission revenues	—		—	—	57	—	—		57
Commodity sales	—		693	—	—	—	—		693
Total revenue from contracts with customers	2,098		1,910	2,231	57	—	—		6,296
Commodity sales	—		—	—	—	6,575	—		6,575
Other revenues1, 2	(269	)	25	2	100	—	(3	)	(145	)
Intersegment revenues	80		2	4	—	57	(143	)	—
Total revenues	1,909		1,937	2,237	157	6,632	(146	)	12,726

1  Includes mark-to-market gains/(losses) from our hedging program.

2 Includes revenues from lease contracts, refer to Note 14 Leases.

Contract with Customer, Asset and Liability

	Receivables	Contract Assets	Contract Liabilities
(millions of Canadian dollars)
Balance as at December 31, 2018	1,929	191	1,297
Balance as at March 31, 2019	2,338	191	1,262

Schedule of New Accounting Pronouncements and Changes in Accounting Principles

	Liquids Pipelines	Gas Transmission and Midstream	Gas Distribution	Renewable Power Generation and Transmission	Energy Services	Consolidated
Three months ended March 31, 2019
(millions of Canadian dollars)
Revenues from products transferred at a point in time1	—	—	17	—	—	17
Revenues from products and services transferred over time2	2,241	1,306	2,142	50	—	5,739
Total revenue from contracts with customers	2,241	1,306	2,159	50	—	5,756

	Liquids Pipelines	Gas Transmission and Midstream	Gas Distribution	Renewable Power Generation and Transmission	Energy Services	Consolidated
Three months ended March 31, 2018
(millions of Canadian dollars)
Revenues from products transferred at a point in time1	—	693	25	—	—	718
Revenues from products and services transferred over time2	2,098	1,217	2,206	57	—	5,578
Total revenue from contracts with customers	2,098	1,910	2,231	57	—	6,296

1  Revenues from sales of crude oil, natural gas and NGLs.

2  Revenues from crude oil and natural gas pipeline transportation, storage, natural gas gathering, compression and treating, natural gas distribution, natural gas storage services and electricity sales.