Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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+ Details

- Definition

Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

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+ Details

REVENUE - Schedule of Recognition and Measurement of Revenues (Details) - CAD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	$ 6,592	$ 6,511	$ 15,560	$ 15,288
Transferred at Point in Time
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	103	66	199	134
Transferred Over Time
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	6,489	6,445	15,361	15,154
Liquids Pipelines
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	2,786	2,970	5,643	6,143
Liquids Pipelines \| Transferred at Point in Time
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	0	0	0	0
Liquids Pipelines \| Transferred Over Time
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	2,786	2,970	5,643	6,143
Gas Transmission
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	1,671	1,539	3,367	3,216
Gas Transmission \| Transferred at Point in Time
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	36	28	74	52
Gas Transmission \| Transferred Over Time
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	1,635	1,511	3,293	3,164
Gas Distribution and Storage
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	2,058	1,950	6,396	5,835
Gas Distribution and Storage \| Transferred at Point in Time
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	56	31	92	67
Gas Distribution and Storage \| Transferred Over Time
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	2,002	1,919	6,304	5,768
Renewable Power Generation
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	77	52	154	94
Renewable Power Generation \| Transferred at Point in Time
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	11	7	33	15
Renewable Power Generation \| Transferred Over Time
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	$ 66	$ 45	$ 121	$ 79