CONSOLIDATED STATEMENTS OF CASH FLOWS - CAD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Operating Activities
Net income	$ 1,418.2	$ 160.7	$ 201.8
Non-cash items
Depreciation and amortization	129.4	142.4	137.2
Deferred income taxes	(339.9)	57.2	55.1
Capitalized equity financing costs	(34.8)	(29.1)	(17.9)
Unrealized foreign exchange (gain) loss	(0.8)	5.6	(32.6)
Write-off of unamortized debt issuance cost	60.5	0.0	0.0
Gain on Sale of the Trans Mountain Asset Group(Note 3)	(1,197.0)	0.0	0.0
Other non-cash items	9.4	8.1	(6.2)
Change in operating assets and liabilities(Note 16)	337.0	(94.4)	(27.5)
Cash provided by operating activities(Note 3)	382.0	250.5	309.9
Investing Activities
Capital expenditures	(528.4)	(618.5)	(269.1)
Contributions to trusts	(9.9)	(16.4)	(13.7)
Sales of property, plant, and equipment, net of removal costs	16.0	(0.2)	(0.4)
Proceeds from sale of the Trans Mountain Asset Group, net of tax	3,913.4	0.0	0.0
Other, net	0.6	0.0	0.0
Cash provided by (used in) investing activities(Note 3)	3,391.7	(635.1)	(283.2)
Financing Activities
Issuances of debt	792.6	337.3	0.0
Repayments of debt	(232.7)	(337.3)	0.0
Proceeds received from IPO, net	0.0	1,671.0	0.0
Issuance of preferred shares, net	(0.5)	536.8	0.0
Proceeds from debt with affiliates	0.0	0.0	70.2
Repayments of debt with affiliates	0.0	(1,606.3)	0.0
Cash dividends - restricted shares	(50.0)	(16.1)	0.0
Dividends - preferred shares	(27.7)	(4.0)	0.0
Distributions - Kinder Morgan interest	(142.0)	(41.8)	0.0
Debt issuance costs	(9.3)	(74.7)	0.0
Contributions from Kinder Morgan - pre-IPO	0.0	0.0	10.7
Distributions to Kinder Morgan - pre-IPO	0.0	0.0	(21.1)
Other, net	(6.0)	0.0	0.0
Cash provided by financing activities	324.4	464.9	59.8
Change in Cash, Cash Equivalents, and Restricted Deposits held by the Trans Mountain Asset Group	128.3	(78.3)	(28.9)
Effect of exchange rate changes on cash, cash equivalents and restricted deposits	1.0	(1.1)	0.1
Net increase in Cash, Cash Equivalents and Restricted Deposits	4,227.4	0.9	57.7
Cash, Cash Equivalents and Restricted Deposits, beginning of period	111.2	110.3	52.6
Cash, Cash Equivalents and Restricted Deposits, end of period	4,338.6	111.2	110.3
Cash and Cash Equivalents, beginning of period	110.7	109.8	52.2
Restricted Deposits, beginning of period	0.5	0.5	0.4
Cash and Cash Equivalents, end of period	4,338.1	110.7	109.8
Restricted Deposits, end of period	0.5	0.5	0.5
Supplemental Disclosures of Cash Flow Information
Cash paid including to affiliates during the period for interest (net of capitalized interest)	0.0	59.2	31.2
Cash paid during the period for income taxes	9.4	2.3	1.1
Noncash Investing and Financing Activities
Increase in property, plant and equipment from both accruals and contractor retainage		38.1	26.0
Increase (decrease) in property, plant and equipment due to foreign currency translation adjustments	1.5	(2.8)	(4.0)
Distribution accruals	$ 3,977.4	$ 0.0	$ 0.0