Commitments and Contingencies (Tables)

12 Months Ended

Dec. 31, 2016

Commitments and Contingencies Disclosure [Abstract]

Minimum Future Lease Payments Under Operating Leases

As at December 31, 2016, the Company’s commitments under operating leases were estimated at $450 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
2017	$	97
2018	66
2019	52
2020	44
2021	40
Thereafter	151
Total minimum lease payments	$	450