Acquisitions and Divestitures (Details) € in Millions, $ in Millions										2 Months Ended	3 Months Ended		9 Months Ended
		Aug. 30, 2024 USD ($)	Jul. 16, 2024 Rate	Jul. 15, 2024 USD ($) shares	May 03, 2024 USD ($) conversionRatioOfUnitsInAcquisition terminal mi shares	Apr. 30, 2024 USD ($)	Apr. 16, 2024 USD ($) convenienceStore	Mar. 13, 2024 USD ($)	Mar. 13, 2024 EUR (€)	Jun. 30, 2024 USD ($)	Sep. 30, 2024 USD ($)	Sep. 30, 2023 USD ($)	Sep. 30, 2024 USD ($)	Sep. 30, 2023 USD ($)	Dec. 31, 2023 USD ($)
Business Acquisition [Line Items]
Non-current operating lease liabilities											$ 742		$ 742		$ 778
Gain on sale of Sunoco LP West Texas assets											0	$ 0	598	$ 0
Income tax expense											89	$ 77	405	256
Cash paid for acquisitions						$ 637
Permian Joint Venture
Business Acquisition [Line Items]
Limited Liability Company (LLC) or Limited Partnership (LP), Managing Member or General Partner, Ownership Interest | Rate			67.50%
Sunoco LP [Member] | Permian Joint Venture
Business Acquisition [Line Items]
Limited Liability Company (LLC) or Limited Partnership (LP), Managing Member or General Partner, Ownership Interest | Rate			32.50%
Sunoco LP [Member] | 7-Eleven
Business Acquisition [Line Items]
Business Combination, Consideration Transferred							$ 1,000
Number of Units in Real Estate Property | convenienceStore							204
Nustar
Business Acquisition [Line Items]
Proceeds from (Repurchase of) Redeemable Preferred Stock										$ 784
Repayments of Lines of Credit										$ 455	$ 455
Sunoco [Member] | 7-Eleven
Business Acquisition [Line Items]
Income tax expense													178
Deferred Federal Income Tax Expense (Benefit)													(31)
Sunoco [Member] | 7-Eleven | Net of current tax expense
Business Acquisition [Line Items]
Gain on sale of Sunoco LP West Texas assets													451
Zenith Energy | Sunoco LP [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Other								$ 6
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities								14
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Liabilities								11
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Other								43
Goodwill, Acquired During Period								7
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Other Noncurrent Assets								36
Business Combination, Consideration Transferred								185	€ 170
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment [Abstract]								$ 204
Nustar Acquisition
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities					$ 245
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Liabilities					4
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Other					82
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities					3,967
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Financial Liabilities	[1]				801
Goodwill, Acquired During Period	[2]				16
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Long-Term Debt	[1]				3,500
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Other Noncurrent Assets					127
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets					7,618
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets					186
Operating Lease, Right-of-Use Asset					136
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill	[2]				195
Non-current operating lease liabilities					136
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net					2,850
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Cash and Equivalents					27
Business Combination, Consideration Transferred					2,823
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment [Abstract]					6,958
Impairment of Real Estate													50
Finite-Lived Customer Relationships, Gross					44
Finite-Lived Contractual Rights, Gross					$ 151
Nustar Acquisition | Contractual Rights
Business Acquisition [Line Items]
Acquired Finite-Lived Intangible Assets, Weighted Average Useful Life					7 years
Nustar Acquisition | Customer Relationships
Business Acquisition [Line Items]
Acquired Finite-Lived Intangible Assets, Weighted Average Useful Life					15 years
Nustar Acquisition | Sunoco LP [Member]
Business Acquisition [Line Items]
Business Acquisition, Equity Interest Issued or Issuable, Value Assigned					$ 2,850
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Long-Term Debt					$ 3,500
Business Acquisition, Equity Interest Issued or Issuable, Conversion Ratio of Shares | conversionRatioOfUnitsInAcquisition					0.400
Proceeds from (Repurchase of) Redeemable Preferred Stock					$ (800)
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares | shares					51,500,000
Finance Lease, Liability					$ 56
Nustar Acquisition | Miles of pipeline | Sunoco LP [Member]
Business Acquisition [Line Items]
Number of Units in Real Estate Property | mi					9,500
Nustar Acquisition | Terminal and storage facilities | Sunoco LP [Member]
Business Acquisition [Line Items]
Number of Units in Real Estate Property | terminal					63
WTG Midstream
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities				$ 394
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Other				20
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities				419
Business Acquisition, Equity Interest Issued or Issuable, Value Assigned				833
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets				3,471
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets				334
Operating Lease, Right-of-Use Asset				8
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill				20
Non-current operating lease liabilities				5
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net				3,052
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Cash and Equivalents				45
Business Combination, Consideration Transferred				3,007
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment [Abstract]				$ 3,109
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares | shares				50,800,000
Payments to Acquire Businesses, Gross				$ 2,280
Business Combination, Reason for Business Combination				The acquired assets include approximately 6,000 miles of complementary gas gathering pipelines that extended Energy Transfer’s network in the Midland Basin. Also, as part of the transaction, the Partnership added eight gas processing plants with a total capacity of approximately 1.3 Bcf/d, and two additional processing plants that were under construction at closing. Since closing the transaction, one of these 200 MMcf/d processing plants was placed into service.
Cash paid for acquisitions													$ 2,174	0
Permian Joint Venture
Business Acquisition [Line Items]
Business Combination, Reason for Business Combination													The joint venture operates more than 5,000 miles of crude oil and water gathering pipelines with crude oil storage capacity in excess of 11 million barrels.
Sunoco LP [Member]
Business Acquisition [Line Items]
Cash paid for acquisitions		$ 24											$ 209	$ 0

[1] Subsequent to the closing of the NuStar acquisition, Sunoco LP redeemed all outstanding NuStar preferred units totaling $784 million, redeemed NuStar’s subordinated notes totaling $403 million and repaid the outstanding balance on the NuStar credit facility totaling $455 million.

[2] Intangible assets, net comprised of $151 million of favorable contracts, with a remaining weighted average life of approximately 7 years, and $44 million of customer relationships, with a remaining weighted average life of approximately 15 years.