Commitments and Contingencies (Tables)

12 Months Ended

Dec. 31, 2018

Commitments and Contingencies Disclosure [Abstract]

Minimum Future Lease Payments Under Operating Leases

As at December 31, 2018, the Company’s commitments under operating leases were estimated at $485 million in aggregate, with minimum annual payments in each of the next five years and thereafter as follows: 

(in millions of Canadian dollars)	Operating leases
2019	$	90
2020	71
2021	55
2022	50
2023	49
Thereafter	170
Total minimum lease payments	$	485