XML 176 R148.htm IDEA: XBRL DOCUMENT v3.8.0.1
Credit Facilities, Long-Term Debt, and Finance Lease Obligations - Finance Lease Obligations (Details) - CAD
CAD in Millions
Dec. 31, 2017
Dec. 31, 2016
Disclosure of finance lease and operating lease by lessee [line items]    
Minimum lease payments CAD 78 CAD 84
Present value of minimum lease payments 69 73
Less: interest costs 9 11
Total finance lease obligations 69 73
Current portion of finance lease obligations 18 16
Long-term portion of finance lease obligations 51 57
Within one year    
Disclosure of finance lease and operating lease by lessee [line items]    
Minimum lease payments 20 19
Present value of minimum lease payments 20 19
Second to fifth years inclusive    
Disclosure of finance lease and operating lease by lessee [line items]    
Minimum lease payments 43 44
Present value of minimum lease payments 38 39
More than five years    
Disclosure of finance lease and operating lease by lessee [line items]    
Minimum lease payments 15 21
Present value of minimum lease payments CAD 11 CAD 15