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REVENUES (Tables)
 9 Months Ended
Sep. 30, 2023
Revenue from Contract with Customer [Abstract]  
Schedule of Disaggregation of Revenue
Three months ended
September 30, 2023		Liquids PipelinesGas Transmission and MidstreamGas Distribution and StorageRenewable Power GenerationEnergy ServicesEliminations and OtherConsolidated
(millions of Canadian dollars)       
Transportation revenue2,856 1,294 148 — — — 4,298 
Storage and other revenue65 118 83 — — — 266 
Gas distribution revenue— — 528 — — — 528 
Electricity revenue— — — 79 — — 79 
Total revenue from contracts with customers
2,921 1,412 759 79 — — 5,171 
Commodity sales— — — — 4,652 — 4,652 
Other revenue1,2
61 11 (9)(42)— — 21 
Intersegment revenue102 — 1 3 6 (112)— 
Total revenue3,084 1,423 751 40 4,658 (112)9,844 
Three months ended
September 30, 2022		Liquids PipelinesGas Transmission and MidstreamGas Distribution and StorageRenewable Power GenerationEnergy ServicesEliminations and OtherConsolidated
(millions of Canadian dollars)       
Transportation revenue2,962 1,264 143 — — — 4,369 
Storage and other revenue58 91 63 — — — 212 
Gas distribution revenue— — 699 — — — 699 
Electricity revenue— — — 68 — — 68 
Total revenue from contracts with customers
3,020 1,355 905 68 — — 5,348 
Commodity sales— — — — 6,415 — 6,415 
Other revenue1,2
(258)10 3 54 — 1 (190)
Intersegment revenue137 1 1 (2)4 (141)— 
Total revenue2,899 1,366 909 120 6,419 (140)11,573 

Nine months ended
September 30, 2023		Liquids PipelinesGas Transmission and MidstreamGas Distribution and StorageRenewable Power Generation Energy ServicesEliminations and OtherConsolidated
(millions of Canadian dollars)       
Transportation revenue8,800 3,968 593 — — — 13,361 
Storage and other revenue191 326 267 — — — 784 
Gas distribution revenue— — 3,611 — — — 3,611 
Electricity revenue— — — 220 — — 220 
Total revenue from contracts with customers
8,991 4,294 4,471 220 — — 17,976 
Commodity sales— — — — 14,114 — 14,114 
Other revenue1,2
170 29 (50)112 — — 261 
Intersegment revenue358 1 5 2 24 (390)— 
Total revenue9,519 4,324 4,426 334 14,138 (390)32,351 
Nine months ended
September 30, 2022		Liquids PipelinesGas Transmission and MidstreamGas Distribution and StorageRenewable Power GenerationEnergy ServicesEliminations and OtherConsolidated
(millions of Canadian dollars)       
Transportation revenue8,212 3,658 551 — — — 12,421 
Storage and other revenue173 258 209 — — — 640 
Gas gathering and processing revenue— 21 — — — — 21 
Gas distribution revenue— — 3,716 — — — 3,716 
Electricity revenue— — — 211 — — 211 
Total revenue from contracts with customers
8,385 3,937 4,476 211 — — 17,009 
Commodity sales— — — — 22,880 — 22,880 
Other revenue1,2
(225)28 (30)222 — 1 (4)
Intersegment revenue432 2 12 (2)14 (458)— 
Total revenue8,592 3,967 4,458 431 22,894 (457)39,885 
1Includes realized and unrealized gains and losses from our hedging program which for the three months ended September 30, 2023 were a net $97 million loss (2022 - $345 million loss) and for the nine months ended September 30, 2023 were a net $149 million loss (2022 - $483 million loss).
2Includes revenues from lease contracts for the three months ended September 30, 2023 and 2022 of $107 million and $128 million, respectively, and for the nine months ended September 30, 2023 and 2022 of $387 million and $435 million, respectively.
Recognition and Measurement of Revenues
Three months ended September 30, 2023Liquids PipelinesGas Transmission and MidstreamGas Distribution and StorageRenewable Power Generation Consolidated
(millions of Canadian dollars)    
Revenues from products transferred at a point in time
— — 38 — 38 
Revenues from products and services transferred over time1
2,921 1,412 721 79 5,133 
Total revenue from contracts with customers
2,921 1,412 759 79 5,171 
Three months ended September 30, 2022Liquids PipelinesGas Transmission and MidstreamGas Distribution and StorageRenewable Power GenerationConsolidated
(millions of Canadian dollars)
Revenues from products transferred at a point in time— — 41 — 41 
Revenues from products and services transferred over time1
3,020 1,355 864 68 5,307 
Total revenue from contracts with customers3,020 1,355 905 68 5,348 
Nine months ended September 30, 2023Liquids PipelinesGas Transmission and MidstreamGas Distribution and StorageRenewable Power GenerationConsolidated
(millions of Canadian dollars)
Revenues from products transferred at a point in time— — 105 — 105 
Revenues from products and services transferred over time1
8,991 4,294 4,366 220 17,871 
Total revenue from contracts with customers8,991 4,294 4,471 220 17,976 
Nine months ended September 30, 2022Liquids PipelinesGas Transmission and MidstreamGas Distribution and StorageRenewable Power GenerationConsolidated
(millions of Canadian dollars)
Revenues from products transferred at a point in time— — 77 — 77 
Revenues from products and services transferred over time1
8,385 3,937 4,399 211 16,932 
Total revenue from contracts with customers8,385 3,937 4,476 211 17,009 
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.
Schedule of Contract with Customer, Asset and Liability
Contract Balances
Contract ReceivablesContract AssetsContract Liabilities
(millions of Canadian dollars)
Balance as at September 30, 20232,161 230 2,448 
Balance as at December 31, 20223,183 230 2,241