Acquisitions and Divestitures (2012 Narrative) (Details) (USD $) Share data in Millions, unless otherwise specified	0 Months Ended	3 Months Ended																																12 Months Ended										0 Months Ended	12 Months Ended			0 Months Ended		1 Months Ended	12 Months Ended			1 Months Ended				12 Months Ended								0 Months Ended	9 Months Ended	1 Months Ended
	Mar. 31, 2012	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2009	Mar. 31, 2012 Southern Union Merger [Member]	Dec. 31, 2013 Southern Union Merger [Member]	Mar. 25, 2012 Southern Union Merger [Member]		Mar. 31, 2012 Citrus Merger [Member]	Mar. 25, 2012 Citrus Merger [Member]	Oct. 31, 2012 Sunoco Merger [Member]	Dec. 31, 2013 Sunoco Merger [Member]	Oct. 05, 2012 Sunoco Merger [Member]		Apr. 30, 2013 Holdco Transaction [Member]	Oct. 31, 2012 Holdco Transaction [Member]	Oct. 05, 2012 ETP [Member]	Dec. 31, 2013 ETP [Member] Holdco Transaction [Member]	Dec. 31, 2013 Sunoco Logistics [Member] Sunoco Merger [Member]	Oct. 05, 2012 Parent Company [Member]	Apr. 30, 2013 Parent Company [Member] Holdco Transaction [Member]	Oct. 05, 2012 Sunoco [Member]	Dec. 31, 2013 Sunoco [Member] Class F Units [Member]	Oct. 05, 2012 Sunoco [Member] Holdco Transaction [Member]	Dec. 31, 2013 Carlyle Group [Member] PES Joint Venture [Member]	Dec. 31, 2013 Sunoco [Member] PES Joint Venture [Member]	Jan. 12, 2012 AmeriGas [Member]	Sep. 30, 2012 Canyon Disposal [Member]	Oct. 31, 2012 Canyon Disposal [Member] Canyon [Member]
Business Acquisition [Line Items]
Business Acquisition Units Acquired																																														57.0						55.0														30.0
Business Combination, Consideration Transferred																																												$ 3,010,000,000				$ 2,000,000,000		$ 2,600,000,000				$ 1,400,000,000														$ 207,000,000
Equity Method Investment, Ownership Percentage																																																	50.00%
Payments to Acquire Businesses, Gross																																																1,900,000,000
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares	2.2
Subsidiary Interest in Joint Venture																																																																67.00%
Retained Interest, Fair Value Disclosure																																																																	75,000,000
Business Combination, Acquisition Related Costs																																													38,000,000						28,000,000
Revenues																										12,032,000,000	11,902,000,000	11,551,000,000	10,854,000,000	10,981,000,000	1,802,000,000	1,596,000,000	1,323,000,000							46,339,000,000	15,702,000,000	6,799,000,000			1,260,000,000						5,930,000,000							3,110,000,000
Net Income (Loss) Attributable to Parent																																								456,000,000	1,569,000,000	669,000,000			39,000,000						14,000,000							145,000,000
Proceeds from Divestiture of Businesses																																																																		1,460,000,000
Equity interest in Holdco																																																								40.00%	100.00%		60.00%	60.00%
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Cash and Equivalents																																														37,000,000	[1]					2,714,000,000	[2]										2,000,000,000
Partners' Capital Account, Units																										333.8				301.5										333.8	301.5	225.5	193.2																			40.0
Relinquishment of rights of incentive distributions		8,750,000	8,750,000	8,750,000	8,750,000	11,250,000	11,250,000	11,250,000	11,250,000	12,500,000	12,500,000	12,500,000	12,500,000	18,000,000	18,000,000	18,000,000	18,000,000	13,000,000	13,000,000	12,500,000	12,500,000	26,500,000	26,500,000	26,500,000	26,500,000									35,000,000	45,000,000	50,000,000	72,000,000	51,000,000	106,000,000	329,000,000								220,000,000							210,000,000
Noncash or Part Noncash Divestiture, Amount of Consideration Received																																																																		71,000,000
Business Combination, Contingent Consideration, Liability																																																																		1,500,000,000
Debt Of Subsidiary Guaranteed																																																																		1,500,000,000
Disposal Group, Not Discontinued Operation, Loss (Gain) on Write-down																																									$ 128,000,000																										$ 132,000,000
General Partner Interest																																																													2.00%
Incentive Distribution Rights																																																													100.00%
Percent of total equity ownership of a subsidiary																																																													32.00%

[1] Includes ETP’s acquisition of Citrus.

[2] ncludes amounts recorded with respect to Sunoco Logistics.