CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY - CAD ($) $ in Millions	Total	Preference shares	Common shares	Additional paid-in capital	Deficit	Accumulated other comprehensive income (loss)	Reciprocal shareholding	Total Enbridge Inc. shareholders’ equity	Noncontrolling interests
Balance at the beginning of the period at Dec. 31, 2020		$ 7,747	$ 64,768	$ 277	$ (9,995)	$ (1,401)	$ (29)		$ 2,996
Increase (Decrease) in Stockholders' Equity
Redemption of preference shares		0
Stock-based compensation				16
Options exercised			12	(8)
Share purchases at stated value			0
Other			0	0
Change in reciprocal interest				39			12
Earnings attributable to controlling interests	$ 3,476				3,476
Preference share dividends					(182)
Common share dividends declared					(1,692)
Dividends paid to reciprocal shareholder					5
Share purchases in excess of stated value					0
Other comprehensive income/(loss) attributable to common shareholders, net of tax						(1,019)
Earnings attributable to noncontrolling interests									59
Change in unrealized loss on cash flow hedges									(6)
Foreign currency translation adjustments									(47)
Other comprehensive income/(loss) attributable to common shareholders, net of tax									(53)
Comprehensive income attributable to noncontrolling interests	(6)								6
Distributions									(143)
Contributions									9
Other					0				2
Balance at the end of the period at Jun. 30, 2021	$ 64,896	7,747	64,780	324	(8,388)	(2,420)	(17)	$ 62,026	2,870
Increase (Decrease) in Stockholders' Equity
Common stock, dividends per share, paid (in dollars per share)	$ 1.670
Balance at the beginning of the period at Mar. 31, 2021		7,747	64,772	324	(8,093)	(1,675)	(17)		2,930
Increase (Decrease) in Stockholders' Equity
Redemption of preference shares		0
Stock-based compensation				5
Options exercised			8	(5)
Share purchases at stated value			0
Other			0	0
Change in reciprocal interest	$ 0						0
Earnings attributable to controlling interests	1,484				1,484
Preference share dividends					(90)
Common share dividends declared					(1,692)
Dividends paid to reciprocal shareholder					2
Share purchases in excess of stated value					0
Other comprehensive income/(loss) attributable to common shareholders, net of tax						(745)
Earnings attributable to noncontrolling interests									37
Change in unrealized loss on cash flow hedges									(3)
Foreign currency translation adjustments									(25)
Other comprehensive income/(loss) attributable to common shareholders, net of tax									(28)
Comprehensive income attributable to noncontrolling interests	(9)								9
Distributions									(77)
Contributions									6
Other					1				2
Balance at the end of the period at Jun. 30, 2021	$ 64,896	7,747	64,780	324	(8,388)	(2,420)	(17)	62,026	2,870
Increase (Decrease) in Stockholders' Equity
Common stock, dividends per share, paid (in dollars per share)	$ 0.835
Balance at the beginning of the period at Dec. 31, 2021	$ 63,368	7,747	64,799	365	(10,989)	(1,096)	0		2,542
Increase (Decrease) in Stockholders' Equity
Redemption of preference shares		(929)
Stock-based compensation				18
Options exercised			48	(45)
Share purchases at stated value			(88)
Other			(4)	(33)
Change in reciprocal interest				0			0
Earnings attributable to controlling interests	2,624				2,624
Preference share dividends					(247)
Common share dividends declared					(1,743)
Dividends paid to reciprocal shareholder					0
Share purchases in excess of stated value					(63)
Other comprehensive income/(loss) attributable to common shareholders, net of tax						1,634
Earnings attributable to noncontrolling interests									40
Change in unrealized loss on cash flow hedges									(6)
Foreign currency translation adjustments									37
Other comprehensive income/(loss) attributable to common shareholders, net of tax									31
Comprehensive income attributable to noncontrolling interests	(71)								71
Distributions									(127)
Contributions									8
Other					0				45
Balance at the end of the period at Jun. 30, 2022	$ 64,537	6,818	64,755	305	(10,418)	538	0	61,998	2,539
Increase (Decrease) in Stockholders' Equity
Common stock, dividends per share, paid (in dollars per share)	$ 1.720
Balance at the beginning of the period at Mar. 31, 2022		7,010	64,801	316	(9,082)	(1,308)	0		2,536
Increase (Decrease) in Stockholders' Equity
Redemption of preference shares		(192)
Stock-based compensation				5
Options exercised			12	(11)
Share purchases at stated value			(58)
Other			0	(5)
Change in reciprocal interest				0			0
Earnings attributable to controlling interests	$ 595				595
Preference share dividends					(145)
Common share dividends declared					(1,743)
Dividends paid to reciprocal shareholder					0
Share purchases in excess of stated value					(43)
Other comprehensive income/(loss) attributable to common shareholders, net of tax						1,846
Earnings attributable to noncontrolling interests									12
Change in unrealized loss on cash flow hedges									(8)
Foreign currency translation adjustments									54
Other comprehensive income/(loss) attributable to common shareholders, net of tax									46
Comprehensive income attributable to noncontrolling interests	(58)								58
Distributions									(67)
Contributions									2
Other					0				10
Balance at the end of the period at Jun. 30, 2022	$ 64,537	$ 6,818	$ 64,755	$ 305	$ (10,418)	$ 538	$ 0	$ 61,998	$ 2,539
Increase (Decrease) in Stockholders' Equity
Common stock, dividends per share, paid (in dollars per share)	$ 0.860