XML 133 R110.htm IDEA: XBRL DOCUMENT v3.10.0.1
GOODWILL GOODWILL - NARRATIVE (Details) - CAD ($)
$ in Millions
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Feb. 27, 2017
GOODWILL        
Goodwill impairment $ 1,019 $ 102 $ 0  
Goodwill, write of due to deconsolidation   966    
Goodwill, written off related to sale of business unit 628 29    
Goodwill 34,459 34,457    
Spectra Energy Corp        
GOODWILL        
Goodwill       $ 36,656
Gas Transmission and Midstream        
GOODWILL        
Goodwill impairment 1,019 102    
Goodwill, write of due to deconsolidation   966    
Goodwill, written off related to sale of business unit 628 0    
Goodwill 20,777 20,997    
Liquids Pipelines        
GOODWILL        
Goodwill impairment 0 0    
Goodwill, write of due to deconsolidation   0    
Goodwill, written off related to sale of business unit 0 29    
Goodwill 8,324 $ 7,786    
Disposal Group, Disposed of by Sale, Not Discontinued Operations | Midcoast Operating L.P.        
GOODWILL        
Goodwill, write of due to deconsolidation 262      
Disposal Group, Disposed of by Sale, Not Discontinued Operations | Canadian Natural Gas Gathering and Processing Business        
GOODWILL        
Goodwill, write of due to deconsolidation 366      
Disposal group, held-for-sale, not discontinued operations | Canadian Natural Gas Gathering and Processing Business        
GOODWILL        
Goodwill impairment 1,019      
Goodwill 55      
Disposal group, held-for-sale, not discontinued operations | Enbridge Gas New Brunswick        
GOODWILL        
Goodwill $ 133