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REVENUES (Tables)
 6 Months Ended
Jun. 30, 2023
Revenue from Contract with Customer [Abstract]  
Schedule of Disaggregation of Revenue
Three months ended
June 30, 2023		Liquids PipelinesGas Transmission and MidstreamGas Distribution and StorageRenewable Power GenerationEnergy ServicesEliminations and OtherConsolidated
(millions of Canadian dollars)       
Transportation revenue3,002 1,290 169 — — — 4,461 
Storage and other revenue62 113 85 — — — 260 
Gas distribution revenue— — 796 — — — 796 
Electricity revenue— — — 75 — — 75 
Total revenue from contracts with customers
3,064 1,403 1,050 75 — — 5,592 
Commodity sales— — — — 4,679 — 4,679 
Other revenue1,2
79 7 (1)76 — — 161 
Intersegment revenue127 — 1 (1)— (127)— 
Total revenue3,270 1,410 1,050 150 4,679 (127)10,432 
Three months ended
June 30, 2022		Liquids PipelinesGas Transmission and MidstreamGas Distribution and StorageRenewable Power GenerationEnergy ServicesEliminations and OtherConsolidated
(millions of Canadian dollars)       
Transportation revenue2,565 1,200 157 — — — 3,922 
Storage and other revenue64 83 99 — — — 246 
Gas gathering and processing revenue— 6 — — — — 6 
Gas distribution revenue— — 919 — — — 919 
Electricity revenue— — — 81 — — 81 
Total revenue from contracts with customers
2,629 1,289 1,175 81 — — 5,174 
Commodity sales— — — — 8,108 — 8,108 
Other revenue1,2
(145)11 (37)74 30 — (67)
Intersegment revenue154 1 — — — (155)— 
Total revenue2,638 1,301 1,138 155 8,138 (155)13,215 

Six months ended
June 30, 2023		Liquids PipelinesGas Transmission and MidstreamGas Distribution and StorageRenewable Power Generation Energy ServicesEliminations and OtherConsolidated
(millions of Canadian dollars)       
Transportation revenue5,944 2,674 445 — — — 9,063 
Storage and other revenue126 208 184 — — — 518 
Gas distribution revenue— — 3,083 — — — 3,083 
Electricity revenue— — — 141 — — 141 
Total revenue from contracts with customers
6,070 2,882 3,712 141 — — 12,805 
Commodity sales— — — — 9,462 — 9,462 
Other revenue1,2
109 18 (41)154 — — 240 
Intersegment revenue256 1 4 (1)18 (278)— 
Total revenue6,435 2,901 3,675 294 9,480 (278)22,507 
Six months ended
June 30, 2022		Liquids PipelinesGas Transmission and MidstreamGas Distribution and StorageRenewable Power GenerationEnergy ServicesEliminations and OtherConsolidated
(millions of Canadian dollars)       
Transportation revenue5,250 2,394 408 — — — 8,052 
Storage and other revenue115 167 146 — — — 428 
Gas gathering and processing revenue— 21 — — — — 21 
Gas distribution revenue— — 3,017 — — — 3,017 
Electricity revenue— — — 143 — — 143 
Total revenue from contracts with customers
5,365 2,582 3,571 143 — — 11,661 
Commodity sales— — — — 16,433 — 16,433 
Other revenue1,2
33 18 (33)168 32 — 218 
Intersegment revenue295 1 11 — 10 (317)— 
Total revenue5,693 2,601 3,549 311 16,475 (317)28,312 
1Includes realized and unrealized gains and losses from our hedging program which for the three months ended June 30, 2023 were a net $3 million gain (2022 - $198 million loss) and for the six months ended June 30, 2023 were a net $52 million loss (2022 - $104 million loss).
2Includes revenues from lease contracts for the three months ended June 30, 2023 and 2022 of $136 million and $143 million, respectively, and for the six months ended June 30, 2023 and 2022 of $280 million and $307 million, respectively.
Recognition and Measurement of Revenues
Three months ended June 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
— — 37 — 37 
Revenues from products and services transferred over time1
3,064 1,403 1,013 75 5,555 
Total revenue from contracts with customers
3,064 1,403 1,050 75 5,592 
Three months ended June 30, 2022Liquids PipelinesGas Transmission and MidstreamGas Distribution and StorageRenewable Power GenerationConsolidated
(millions of Canadian dollars)
Revenues from products transferred at a point in time— — 20 — 20 
Revenues from products and services transferred over time1
2,629 1,289 1,155 81 5,154 
Total revenue from contracts with customers2,629 1,289 1,175 81 5,174 
Six months ended June 30, 2023Liquids PipelinesGas Transmission and MidstreamGas Distribution and StorageRenewable Power GenerationConsolidated
(millions of Canadian dollars)
Revenues from products transferred at a point in time— — 67 — 67 
Revenues from products and services transferred over time1
6,070 2,882 3,645 141 12,738 
Total revenue from contracts with customers6,070 2,882 3,712 141 12,805 
Six months ended June 30, 2022Liquids PipelinesGas Transmission and MidstreamGas Distribution and StorageRenewable Power GenerationConsolidated
(millions of Canadian dollars)
Revenues from products transferred at a point in time— — 36 — 36 
Revenues from products and services transferred over time1
5,365 2,582 3,535 143 11,625 
Total revenue from contracts with customers5,365 2,582 3,571 143 11,661 
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 June 30, 20232,182 229 2,283 
Balance as at December 31, 20223,183 230 2,241