Annual report pursuant to Section 13 and 15(d)

Cover Page

Cover Page - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2019
Feb. 24, 2020
Cover page.    
Document Type 10-K  
Document Annual Report true  
Document Period End Date Dec. 31, 2019  
Document Transition Report false  
Entity File Number 001-37511  
Entity Registrant Name Sunrun Inc.  
Entity Incorporation, State or Country Code DE  
Entity Tax Identification Number 26-2841711  
Entity Address, Address Line One 225 Bush Street  
Entity Address, Address Line Two Suite 1400  
Entity Address, City or Town San Francisco  
Entity Address, State or Province CA  
Entity Address, Postal Zip Code 94104  
City Area Code 415  
Local Phone Number 580-6900  
Title of 12(b) Security Common Stock, $0.0001 par value per share  
Trading Symbol RUN  
Security Exchange Name NASDAQ  
Entity Well-known Seasoned Issuer No  
Entity Voluntary Filers No  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Large Accelerated Filer  
Entity Small Business false  
Entity Emerging Growth Company false  
Entity Shell Company false  
Entity Public Float $ 1,570  
Entity Common Stock, Shares Outstanding   119,385,549
Amendment Flag false  
Document Fiscal Year Focus 2019  
Document Fiscal Period Focus FY  
Entity Central Index Key 0001469367  
Current Fiscal Year End Date --12-31