XML 167 R134.htm IDEA: XBRL DOCUMENT v3.6.0.2
RELATED PARTY TRANSACTIONS (Details) - CAD
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Related Party Transaction [Line Items]      
Due from related parties, current CAD 0 CAD 2,476,000,000  
Effective Interest Rate (percent) 0.00%    
Due to affiliates CAD 2,358,000,000 311,000,000  
Interest expense, related party 38,000,000 28,000,000 CAD 37,000,000
Discount Notes      
Related Party Transaction [Line Items]      
Due from related parties, current CAD 0 CAD 2,376,000,000  
Effective Interest Rate (percent) 0.90% 0.90%  
Demand Credit Facility      
Related Party Transaction [Line Items]      
Due from related parties, current CAD 0 CAD 100,000,000  
Effective Interest Rate (percent) 2.70% 2.70%  
Due to affiliates CAD 2,358,000,000    
Amount 3,000,000,000.0    
Affiliates      
Related Party Transaction [Line Items]      
Amount 3,500,000,000.0    
Unsecured Credit Facility      
Related Party Transaction [Line Items]      
Effective Interest Rate (percent)   3.50%  
Due to affiliates   CAD 311,000,000  
Transcanada      
Related Party Transaction [Line Items]      
Interest income, related party 19,000,000 29,000,000 37,000,000
Accounts receivable, related parties 0 13,000,000  
Accounts payable, related parties 19,000,000 12,000,000  
Interest Related Party      
Related Party Transaction [Line Items]      
Interest paid 36,000,000 CAD 29,000,000 CAD 37,000,000
Columbia Pipeline Partners LP | Affiliates      
Related Party Transaction [Line Items]      
Amount CAD 1,800,000,000.0