CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (In millions of Canadian dollars) (Unaudited) - CAD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Statement of Comprehensive Income [Abstract]
Net income	$ 1,418.2	$ 160.7	$ 201.8
Other comprehensive income (loss)
Benefit plans(Note 3)	37.5	0.0	(4.7)
Foreign currency translation adjustments(Note 3)	(8.2)	(3.5)	(1.7)
Total other comprehensive income (loss)	29.3	(3.5)	(6.4)
Comprehensive income	1,447.5	157.2	195.4
Comprehensive income attributable to Kinder Morgan interest	(993.7)	(124.0)	(195.4)
Comprehensive income attributable to Kinder Morgan Canada Limited	$ 453.8	$ 33.2	$ 0.0