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REVENUE (Tables)
 9 Months Ended
Sep. 30, 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 Generation Energy ServicesEliminations and OtherConsolidated
Three months ended
September 30, 2022
(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 and transmission 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 

Liquids PipelinesGas Transmission and MidstreamGas Distribution and StorageRenewable Power Generation Energy ServicesEliminations and OtherConsolidated
Three months ended
September 30, 2021
(millions of Canadian dollars)       
Transportation revenue2,340 1,081 128 — — — 3,549 
Storage and other revenue33 58 50 — — — 141 
Gas gathering and processing revenue— 15 — — — — 15 
Gas distribution revenue— — 496 — — — 496 
Electricity and transmission revenue— — — 44 — — 44 
Total revenue from contracts with customers
2,373 1,154 674 44 — — 4,245 
Commodity sales— — — — 7,279 — 7,279 
Other revenue1,2
(143)4 24 78 (1)(20)(58)
Intersegment revenue140 1 (11)— 12 (142)— 
Total revenue2,370 1,159 687 122 7,290 (162)11,466 
Liquids PipelinesGas Transmission and MidstreamGas Distribution and StorageRenewable Power Generation Energy ServicesEliminations and OtherConsolidated
Nine months ended
September 30, 2022
(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 and transmission 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 

Liquids PipelinesGas Transmission and MidstreamGas Distribution and StorageRenewable Power Generation Energy ServicesEliminations and OtherConsolidated
Nine months ended
September 30, 2021
(millions of Canadian dollars)       
Transportation revenue6,826 3,248 494 — — — 10,568 
Storage and other revenue96 195 159 — — — 450 
Gas gathering and processing revenue— 32 — — — — 32 
Gas distribution revenue— — 2,755 — — — 2,755 
Electricity and transmission revenue— — — 125 — — 125 
Total revenue from contracts with customers
6,922 3,475 3,408 125 — — 13,930 
Commodity sales— — — — 20,042 — 20,042 
Other revenue1,2
284 25 42 246 — (18)579 
Intersegment revenue410 1 13 — 26 (450)— 
Total revenue7,616 3,501 3,463 371 20,068 (468)34,551 
1Includes mark-to-market losses from our hedging program for the three months ended September 30, 2022 and 2021 of $345 million and $225 million, respectively. For the nine months ended September 30, 2022 and 2021, Other revenue includes a $483 million mark-to-market loss and a $36 million mark-to-market gain, respectively.
2Includes revenues from lease contracts for the three months ended September 30, 2022 and 2021 of $128 million and $140 million, respectively, and for the nine months ended September 30, 2022 and 2021 of $435 million and $442 million, respectively.
Recognition and Measurement of Revenues
Liquids PipelinesGas Transmission and MidstreamGas Distribution and StorageRenewable Power Generation Consolidated
Three months ended September 30, 2022
(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 customers
3,020 1,355 905 68 5,348 

Liquids PipelinesGas Transmission and MidstreamGas Distribution and StorageRenewable Power Generation Consolidated
Three months ended September 30, 2021
(millions of Canadian dollars)
Revenues from products transferred at a point in time
— — 13 — 13 
Revenues from products and services transferred over time1
2,373 1,154 661 44 4,232 
Total revenue from contracts with customers
2,373 1,154 674 44 4,245 

Liquids PipelinesGas Transmission and MidstreamGas Distribution and StorageRenewable Power Generation Consolidated
Nine months ended September 30, 2022
(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 customers
8,385 3,937 4,476 211 17,009 

Liquids PipelinesGas Transmission and MidstreamGas Distribution and StorageRenewable Power Generation Consolidated
Nine months ended September 30, 2021
(millions of Canadian dollars)
Revenues from products transferred at a point in time
— — 47 — 47 
Revenues from products and services transferred over time1
6,922 3,475 3,361 125 13,883 
Total revenue from contracts with customers
6,922 3,475 3,408 125 13,930 
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, 20222,307 233 2,201 
Balance as at December 31, 20212,369 213 1,898