XML 45 R36.htm IDEA: XBRL DOCUMENT v3.7.0.1
ACQUISITION AND DISPOSITIONS - SPECTRA, MERGER TRANSACTION (Details)
CAD in Millions
3 Months Ended 6 Months Ended
Feb. 27, 2017
CAD
shares
Jun. 30, 2016
CAD
Jun. 30, 2016
CAD
Feb. 27, 2017
$ / shares
ACQUISITIONS        
Cash consideration in lieu of fractional shares   CAD 485 CAD 539  
Spectra Energy Corp        
ACQUISITIONS        
Purchase price CAD 37,509      
Enbridge shares received by Spectra Energy shareholders for each share of Spectra Energy common stock owned (in shares) | shares 0.984      
Ownership interest acquired (as a percent)       100.00%
Cash consideration in lieu of fractional shares CAD 3      
Spectra Energy Corp | Common shares        
ACQUISITIONS        
Equity issued as consideration to complete the Merger Transaction (in shares) | shares 691,000,000      
Price of shares issued as consideration (in USD per share) | $ / shares       $ 41.34
Value of equity issued as consideration CAD 37,429      
Spectra Energy Corp | Stock options        
ACQUISITIONS        
Equity issued as consideration to complete the Merger Transaction (in shares) | shares 3,500,000      
Value of equity issued as consideration CAD 77