Income Taxes

3 Months Ended

Mar. 31, 2020

Income Tax Disclosure [Abstract]

Income Taxes

Income taxes

	For the three months ended March 31
(in millions of Canadian dollars)	2020		2019
Current income tax expense	$	146	$	101
Deferred income tax expense	39		38
Income tax expense	$	185	$	139

The effective tax rate for the three months ended March 31, 2020 was 31.10%, compared to 24.24% for the same period of 2019.

For the three months ended March 31, 2020, the effective tax rate excluding the discrete item of the foreign exchange ("FX") loss of $215 million on debt and lease liabilities was 25.00%.

For the three months ended March 31, 2019, the effective tax rate excluding the discrete item of the FX gain of $45 million on debt and lease liabilities was 25.75%.