Income Taxes (Tables)

6 Months Ended

Jun. 30, 2016

Income Tax Disclosure [Abstract]

Summary of Income Tax Expense

	For the three months ended June 30				For the six months ended June 30
(in millions of Canadian dollars)	2016		2015		2016		2015
Current income tax expense	$	27	$	103	$	104	$	205
Deferred income tax expense	90		74		183		106
Income tax expense	$	117	$	177	$	287	$	311