Partially Owned Subsidiary, Percentage of Ownership Interest Sold

No definition available.

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Period Type:	duration

- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (a)(1)
-URI https://asc.fasb.org/extlink&oid=114001798&loc=d3e33918-111571

+ Details

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- Definition

This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-SubTopic 10
-Section 45
-Paragraph 1
-URI https://asc.fasb.org/extlink&oid=109237563&loc=d3e33749-111570

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(10))
-URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

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+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amount of income (loss) for proportionate share of equity method investee's income (loss).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03(12))
-URI https://asc.fasb.org/extlink&oid=126953954&loc=SL114868664-224227

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-Name Accounting Standards Codification
-Topic 944
-SubTopic 220
-Section S99
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-Subparagraph (SX 210.7-04(10))
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+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

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.

+ References

No definition available.

+ Details

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EQUITY INVESTMENTS - Ownership Information of Equity Investments (Details) - CAD ($) $ in Millions	1 Months Ended	12 Months Ended
	Nov. 30, 2021	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Jul. 31, 2022	May 31, 2020
Equity Investments
Income from Equity Investments		$ 1,054	$ 898	$ 1,019
Equity Investments		$ 9,535	8,441
TQM \| Canadian Natural Gas Pipelines
Equity Investments
Ownership interest percentage		50.00%
Income from Equity Investments		$ 17	12	$ 12
Equity Investments		$ 165	118
Coastal GasLink
Equity Investments
Ownership interest percentage				35.00%
Coastal GasLink \| Canadian Natural Gas Pipelines
Equity Investments
Ownership interest percentage		35.00%			35.00%	35.00%
Income from Equity Investments		$ 1	0	$ 0
Equity Investments		$ 0	386
Northern Border \| U.S. Natural Gas Pipelines
Equity Investments
Ownership interest percentage		50.00%
Income from Equity Investments		$ 92	80	100
Equity Investments		$ 516	505
Millennium \| U.S. Natural Gas Pipelines
Equity Investments
Ownership interest percentage		47.50%
Income from Equity Investments		$ 103	91	96
Equity Investments		$ 500	474
Iroquois \| U.S. Natural Gas Pipelines
Equity Investments
Ownership interest percentage		50.00%
Income from Equity Investments		$ 77	55	52
Equity Investments		237	392
Other \| U.S. Natural Gas Pipelines
Equity Investments
Income from Equity Investments		20	18	16
Equity Investments		122	137
Other \| Power and Energy Solutions
Equity Investments
Income from Equity Investments		2	0	$ 16
Equity Investments		$ 30	0
Sur de Texas
Equity Investments
Ownership interest percentage				60.00%
Sur de Texas \| Mexico Natural Gas Pipelines
Equity Investments
Ownership interest percentage		60.00%
Income from Equity Investments		$ 150	160	$ 213
Equity Investments		$ 1,050	835
Grand Rapids \| Liquids Pipelines
Equity Investments
Ownership interest percentage		50.00%
Income from Equity Investments		$ 54	54	53
Equity Investments		$ 964	980
Port Neches Link LLC \| Liquids Pipelines
Equity Investments
Ownership interest percentage		95.00%
Income from Equity Investments		$ 0	0	0
Equity Investments		$ 149	103
HoustonLink Pipeline \| Liquids Pipelines
Equity Investments
Ownership interest percentage		50.00%
Income from Equity Investments		$ 1	1	0
Equity Investments		19	18
Northern Courier \| Liquids Pipelines
Equity Investments
Income from Equity Investments		0	16	22
Equity Investments		$ 0	0
Ownership interest sold	15.00%
Bruce Power \| Power and Energy Solutions
Equity Investments
Ownership interest percentage		48.30%
Income from Equity Investments		$ 537	411	$ 439
Equity Investments		$ 5,783	$ 4,493