99  / SERVICE EXCELLENCE 21. Leases The Company’s leases have remaining terms of less than one year to 15 years, some include options to extend up to an additional 10 years, and some include options to terminate within one year. Residual value guarantees are provided on certain rolling stock and vehicle operating leases. Cumulatively, these guarantees are limited to $2 million and are not included in lease liabilities as it is not currently probable that any amounts will be owed under these residual value guarantees. The components of lease expense for the year ended December 31 are as follows: (in millions of Canadian dollars) 2019 Operating lease cost $ 89 Short-term lease cost 10 Variable lease cost 13 Sublease income (3) Finance Lease Cost Amortization of right-of use-assets 9 Interest on lease liabilities 11 Total lease costs $ 129 Supplemental balance sheet information related to leases is as follows: (in millions of Canadian dollars) Classification 2019 Assets Operating Other assets $ 358 Finance Properties, net book value 177 Liabilities Current Operating Accounts payable and accrued liabilities 69 Finance Long-term debt maturing within one year 7 Long-term Operating Other long-term liabilities 285 Finance Long-term debt 144 The following table provides the Company's weighted-average remaining lease terms and discount rates: 2019 Weighted-Average Remaining Lease Term Operating leases 7 years Finance leases 4 years Weighted-Average Discount Rate Operating leases 3.45% Finance leases 7.07 %