Clearway Energy (CWEN) 10-K/A 30 Mar 20 2019 FY Annual report (amended) Financial data

Cover

Cover - USD ($)	12 Months Ended
	Dec. 31, 2019	Mar. 24, 2020	Jun. 30, 2019
Class of Stock [Line Items]
Entity Central Index Key	0001567683
Document Transition Report	false
Entity Registrant Name	Clearway Energy, Inc.
Document Annual Report	true
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	46-1777204
Entity Address, Address Line One	300 Carnegie Center, Suite 300
Entity Address, City or Town	Princeton
Entity Address, State or Province	NJ
Document Period End Date	Dec. 31, 2019
Document Type	10-K/A
Entity File Number	001-36002
City Area Code	609
Local Phone Number	608-1525
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Address, Postal Zip Code	08540
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Public Float			$ 1,788,899,961
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	FY
Common Class D [Member]
Class of Stock [Line Items]
Entity Common Stock, Shares Outstanding		42,738,750
Common Class B [Member]
Class of Stock [Line Items]
Entity Common Stock, Shares Outstanding		42,738,750
Common Class C [Member]
Class of Stock [Line Items]
Entity Common Stock, Shares Outstanding		79,329,761
Title of 12(b) Security	Class C Common Stock, par value $0.01
Trading Symbol	CWEN
Security Exchange Name	NYSE
Common Class A [Member]
Class of Stock [Line Items]
Entity Common Stock, Shares Outstanding		34,599,645
Title of 12(b) Security	Class A Common Stock, par value $0.01
Trading Symbol	CWEN.A
Security Exchange Name	NYSE