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REVENUE (Tables)
 12 Months Ended
Dec. 31, 2022
Revenue from Contract with Customer [Abstract]  
Schedule Of Disaggregation of Revenue
Major Products and Services
Liquids PipelinesGas Transmission and MidstreamGas Distribution and StorageRenewable Power GenerationEnergy ServicesEliminations and OtherConsolidated
Year ended December 31, 2022
(millions of Canadian dollars)       
Transportation revenue11,283 5,012 782 — — — 17,077 
Storage and other revenue235 350 308 — — — 893 
Gas gathering and processing revenue
— 22 — — — — 22 
Gas distribution revenue— — 5,643 — — — 5,643 
Electricity and transmission revenue
— — — 281 — — 281 
Total revenue from contracts with customers
11,518 5,384 6,733 281 — — 23,916 
Commodity sales— — — — 29,150 — 29,150 
Other revenue1,2
(81)39 (20)305 — — 243 
Intersegment revenue615 3 16 (4)25 (655)— 
Total revenue12,052 5,426 6,729 582 29,175 (655)53,309 
Liquids PipelinesGas Transmission and MidstreamGas Distribution and StorageRenewable Power GenerationEnergy ServicesEliminations and OtherConsolidated
Year ended December 31, 2021
(millions of Canadian dollars)       
Transportation revenue9,492 4,364 676 — — — 14,532 
Storage and other revenue147 255 246 — — — 648 
Gas gathering and processing revenue
— 49 — — — — 49 
Gas distribution revenue— — 4,026 — — — 4,026 
Electricity and transmission revenue— — — 177 — — 177 
Total revenue from contracts with customers
9,639 4,668 4,948 177 — — 19,432 
Commodity sales— — — — 26,873 — 26,873 
Other revenue1,2
375 42 13 336 — — 766 
Intersegment revenue567 1 19 (1)44 (630)— 
Total revenue10,581 4,711 4,980 512 26,917 (630)47,071 
Liquids PipelinesGas Transmission and MidstreamGas Distribution and StorageRenewable Power GenerationEnergy ServicesEliminations and OtherConsolidated
Year ended December 31, 2020
(millions of Canadian dollars)       
Transportation revenue9,161 4,523 674 — — — 14,358 
Storage and other revenue94 274 203 — — — 571 
Gas gathering and processing revenue
— 27 — — — — 27 
Gas distribution revenue— — 3,663 — — — 3,663 
Electricity and transmission revenue
— — — 198 — — 198 
Total revenue from contracts with customers
9,255 4,824 4,540 198 — — 18,817 
Commodity sales— — — — 19,259 — 19,259 
Other revenue1,2
584 44 17 389 — (23)1,011 
Intersegment revenue584 2 12 — 24 (622)— 
Total revenue10,423 4,870 4,569 587 19,283 (645)39,087 
1Includes mark-to-market losses from our hedging program for the year ended December 31, 2022 of $431 million (2021 - $59 million gain; 2020 - $265 million gain).
2Includes revenues from lease contracts. Refer to Note 27 - Leases.
Schedule Of Contract with Customer, Asset And Liability
Contract ReceivablesContract AssetsContract Liabilities
(millions of Canadian dollars)
Balance as at December 31, 20223,183 230 2,241 
Balance as at December 31, 20212,369 213 1,898 
Schedule Of Performance Obligations
Performance Obligations
SegmentNature of Performance Obligation
Liquids Pipelines
•Transportation and storage of crude oil and natural gas liquids (NGL)
Gas Transmission and Midstream
•Transportation, storage, gathering, compression and treating of natural gas
•Transportation of NGL
•Sale of crude oil, natural gas and NGL
Gas Distribution and Storage
•Supply and delivery of natural gas
•Transportation of natural gas
•Storage of natural gas
Renewable Power Generation
•Generation and transmission of electricity
•Delivery of electricity from renewable energy generation facilities
Schedule of New Accounting Pronouncements and Changes in Accounting Principles
Recognition and Measurement of Revenue
Liquids PipelinesGas Transmission and MidstreamGas Distribution and StorageRenewable Power GenerationConsolidated
Year ended December 31, 2022
(millions of Canadian dollars)    
Revenue from products transferred at a point in time— — 127 — 127 
Revenue from products and services transferred over time1
11,518 5,384 6,606 281 23,789 
Total revenue from contracts with customers
11,518 5,384 6,733 281 23,916 
Liquids PipelinesGas Transmission and MidstreamGas Distribution and StorageRenewable Power GenerationConsolidated
Year ended December 31, 2021
(millions of Canadian dollars)    
Revenue from products transferred at a point in time— — 70 — 70 
Revenue from products and services transferred over time1
9,639 4,668 4,878 177 19,362 
Total revenue from contracts with customers
9,639 4,668 4,948 177 19,432 
Liquids PipelinesGas Transmission and MidstreamGas Distribution and StorageRenewable Power GenerationConsolidated
Year ended December 31, 2020
(millions of Canadian dollars)    
Revenue from products transferred at a point in time— — 60 — 60 
Revenue from products and services transferred over time1
9,255 4,824 4,480 198 18,757 
Total revenue from contracts with customers
9,255 4,824 4,540 198 18,817 
1Revenue 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.