CONSOLIDATED STATEMENTS OF EARNINGS - CAD ($) $ in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Operating revenues
Commodity sales	$ 7,268	$ 6,866
Gas distribution sales	1,926	1,363
Transportation and other services	3,532	2,917
Total operating revenues (Note 3)	12,726	11,146
Operating expenses
Commodity costs	6,997	6,550
Gas distribution costs	1,324	1,015
Operating and administrative	1,641	1,551
Depreciation and amortization	824	672
Asset impairment (Note 6)	1,062	0
Total operating expenses	11,848	9,788
Operating income	878	1,358
Income from equity investments	335	236
Other income/(expense)
Net foreign currency loss	(185)	(5)
Other	65	40
Interest expense	(656)	(486)
Earnings before income taxes	437	1,143
Income tax recovery/(expense) (Note 11)	73	(198)
Earnings	510	945
(Earnings)/loss attributable to noncontrolling interests and redeemable noncontrolling interests	24	(224)
Earnings attributable to controlling interests	534	721
Preference share dividends	(89)	(83)
Earnings attributable to common shareholders	$ 445	$ 638
Earnings per common share attributable to common shareholders (Note 5) (in Canadian dollars per share)	$ 0.26	$ 0.54
Diluted earnings per common share attributable to common shareholders (Note 5) (in Canadian dollars per share)	$ 0.26	$ 0.54