Document And Entity Information shares in Thousands	9 Months Ended
	Sep. 30, 2020 shares
Entity Information [Line Items]
Entity Registrant Name	Energy Transfer Operating, L.P.
Document Quarterly Report	true
Document Transition Report	false
Entity Central Index Key	0001161154
Current Fiscal Year End Date	--12-31
Entity Filer Category	Non-accelerated Filer
Document Type	10-Q
Document Period End Date	Sep. 30, 2020
Amendment Flag	false
Entity File Number	1-31219
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	Q3
Entity Emerging Growth Company	false
Entity Small Business	false
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Shell Company	false
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	73-1493906
Entity Address, Address Line One	8111 Westchester Drive
Entity Address, Address Line Two	Suite 600
Entity Address, City or Town	Dallas
Entity Address, State or Province	TX
Entity Address, Postal Zip Code	75225
City Area Code	214
Local Phone Number	981-0700
Entity Common Stock, Shares Outstanding	0
Series C Preferred Units [Member] | NEW YORK STOCK EXCHANGE, INC. [Member]
Entity Information [Line Items]
Title of 12(b) Security	7.375% Series C Fixed-to-Floating Rate Cumulative Redeemable Perpetual Preferred Units
Trading Symbol	ETPprC
Security Exchange Name	NYSE
Series D Preferred Units [Member] | NEW YORK STOCK EXCHANGE, INC. [Member]
Entity Information [Line Items]
Title of 12(b) Security	7.625% Series D Fixed-to-Floating Rate Cumulative Redeemable Perpetual Preferred Units
Trading Symbol	ETPprD
Security Exchange Name	NYSE
Series E Preferred Units [Member] | NEW YORK STOCK EXCHANGE, INC. [Member]
Entity Information [Line Items]
Title of 12(b) Security	7.600% Series E Fixed-to-Floating Rate Cumulative Redeemable Perpetual Preferred Units
Trading Symbol	ETPprE
Security Exchange Name	NYSE