XML 19 R1.htm IDEA: XBRL DOCUMENT v3.21.1
Cover Page
 12 Months Ended
Dec. 31, 2020
shares
Cover [Abstract]  
Entity Central Index Key 0001127248
Document Type 40-F
Document Registration Statement false
Document Annual Report true
Amendment Flag false
Document Period End Date Dec. 31, 2020
Document Fiscal Period Focus FY
Document Fiscal Year Focus 2020
Current Fiscal Year End Date --12-31
Entity File Number 000-54516
Entity Registrant Name EMERA INC
Entity Incorporation, State or Country Code A5
Entity Address, Address Line One 5151 Terminal Road
Entity Address, City or Town Halifax
Entity Address, State or Province DE
Entity Address, Country CA
Entity Address, Postal Zip Code B3J 1A1
City Area Code 902
Local Phone Number 428-6096
Entity Listings [Line Items]  
Annual Information Form true
Audited Annual Financial Statements true
Entity Current Reporting Status Yes
Entity Interactive Data Current Yes
Entity Emerging Growth Company false
ICFR Auditor Attestation Flag false
Common Stock  
Entity Listings [Line Items]  
Entity Common Stock, Shares Outstanding 251,430,226
Series A Preferred Stock  
Entity Listings [Line Items]  
Entity Common Stock, Shares Outstanding 4,866,814
Series B Preferred Stock  
Entity Listings [Line Items]  
Entity Common Stock, Shares Outstanding 1,133,186
Series C Preferred Stock  
Entity Listings [Line Items]  
Entity Common Stock, Shares Outstanding 10,000,000
Series E Preferred Stock  
Entity Listings [Line Items]  
Entity Common Stock, Shares Outstanding 5,000,000
Series F Preferred Stock  
Entity Listings [Line Items]  
Entity Common Stock, Shares Outstanding 8,000,000
Series H Preferred Stock  
Entity Listings [Line Items]  
Entity Common Stock, Shares Outstanding 12,000,000