CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY - CAD ($) $ in Millions	Total	Preference shares	Common shares	Additional paid-in capital	Retained earnings/(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, 2018		$ 7,747	$ 64,677	$ 0	$ (5,538)	$ 2,672	$ (88)		$ 3,965
Increase (Decrease) in Stockholders' Equity
Stock-based compensation				4
Options exercised			51	(43)
Change in reciprocal interest	$ 109						37
Other				2
Earnings/(loss) attributable to controlling interests	1,986				1,986
Preference share dividends					(95)
Dividends paid to reciprocal shareholder					5
Other comprehensive income/(loss) attributable to common shareholders, net of tax						(1,278)
Other					2	55			5
Earnings/(loss) attributable to noncontrolling interests									37
Change in unrealized loss on cash flow hedges									(1)
Foreign currency translation adjustments									(49)
Other comprehensive income/(loss) attributable to noncontrolling interests, net of tax									(50)
Comprehensive income/(loss) attributable to noncontrolling interests	13								(13)
Contributions									3
Distributions									(46)
Redemption of preferred shares held by subsidiary									(300)
Balance at the end of the period at Mar. 31, 2019	$ 73,919	7,747	64,728	72	(3,640)	1,449	(51)	$ 70,305	3,614
Increase (Decrease) in Stockholders' Equity
Dividends paid per common share (in Canadian dollars per share)	$ 0.738
Earnings/(loss) per common share attributable to common shareholders (in Canadian dollars per share)	0.94
Diluted earnings/(loss) per common share attributable to common shareholders (in Canadian dollars per share)	$ 0.94
Balance at the beginning of the period at Dec. 31, 2019	$ 69,407	7,747	64,746	187	(6,314)	(272)	(51)		3,364
Increase (Decrease) in Stockholders' Equity
Stock-based compensation				14
Options exercised			14	(16)
Change in reciprocal interest				12			4
Other				5
Earnings/(loss) attributable to controlling interests	(1,333)				(1,333)
Preference share dividends					(96)
Dividends paid to reciprocal shareholder					5
Other comprehensive income/(loss) attributable to common shareholders, net of tax						4,261
Other					(4)	0			0
Earnings/(loss) attributable to noncontrolling interests									(31)
Change in unrealized loss on cash flow hedges									(2)
Foreign currency translation adjustments									178
Other comprehensive income/(loss) attributable to noncontrolling interests, net of tax									176
Comprehensive income/(loss) attributable to noncontrolling interests	(145)								145
Contributions									15
Distributions									(76)
Redemption of preferred shares held by subsidiary									0
Balance at the end of the period at Mar. 31, 2020	$ 72,291	$ 7,747	$ 64,760	$ 202	$ (7,808)	$ 3,989	$ (47)	$ 68,843	$ 3,448
Increase (Decrease) in Stockholders' Equity
Dividends paid per common share (in Canadian dollars per share)	$ 0.810
Earnings/(loss) per common share attributable to common shareholders (in Canadian dollars per share)	(0.71)
Diluted earnings/(loss) per common share attributable to common shareholders (in Canadian dollars per share)	$ (0.71)