XML 170 R153.htm IDEA: XBRL DOCUMENT v3.8.0.1
Long Term Debt (Credit Facilities) (Details) - CAD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2017
Dec. 12, 2017
Dec. 31, 2016
Revolving Credit Facility [Member]      
Debt Instrument [Line Items]      
Line of Credit Facility, Maximum Borrowing Capacity $ 1,624   $ 1,433
Long-term Line of Credit 598   326
Letters of Credit Outstanding, Amount 44   37
Use Of Available Facilities 642   363
Line of Credit Facility, Remaining Borrowing Capacity 982   1,070
Emera Inc      
Debt Instrument [Line Items]      
Line of Credit Facility, Maximum Borrowing Capacity   $ 900  
Emera Inc | Revolving Credit Facility [Member]      
Debt Instrument [Line Items]      
Line of Credit Facility, Maximum Borrowing Capacity $ 900   700
Line of Credit Facility, Expiration Date Jun. 30, 2020    
Overdraft limit on lines of credit accounts $ 50    
Nova Scotia Power Inc. [Member] | Revolving Credit Facility [Member]      
Debt Instrument [Line Items]      
Line of Credit Facility, Maximum Borrowing Capacity $ 600   600
Line of Credit Facility, Expiration Date Oct. 31, 2021    
Overdraft limit on lines of credit accounts $ 50    
Emera Maine [Member] | Revolving Credit Facility [Member]      
Debt Instrument [Line Items]      
Line of Credit Facility, Maximum Borrowing Capacity $ 100   107
Line of Credit Facility, Expiration Date Sep. 30, 2019    
The Barbados Light and Power Company Limited [Member] | Revolving Credit Facility [Member]      
Debt Instrument [Line Items]      
Line of Credit Facility, Maximum Borrowing Capacity $ 24   $ 26
The Barbados Light and Power Company Limited [Member] | Revolving Credit Facility [Member] | Maximum [Member]      
Debt Instrument [Line Items]      
Line of Credit Facility, Expiration Date Dec. 31, 2021    
The Barbados Light and Power Company Limited [Member] | Revolving Credit Facility [Member] | Minimum [Member]      
Debt Instrument [Line Items]      
Line of Credit Facility, Expiration Date Dec. 31, 2018