Income Taxes (Tables)

9 Months Ended

Sep. 30, 2019

Income Tax Disclosure [Abstract]

Summary of Income Tax Expense

	For the three months ended September 30				For the nine months ended September 30
(in millions of Canadian dollars)	2019		2018		2019		2018
Current income tax expense	$	115	$	122	$	358	$	288
Deferred income tax expense	96		77		116		155
Income tax expense	$	211	$	199	$	474	$	443