The percent spread above 3-month LIBOR per annum for the liquidation preference for certain preferred units.

No definition available.

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Carrying value as of the balance sheet date of long-term unsecured obligations issued by corporations and other borrowers to investors (with maturities initially due after one year or beyond the operating cycle if longer), excluding current portion.

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Percentage points added to the reference rate to compute the variable rate on the debt instrument.

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No definition available.

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Description of minimum financial levels (for example, tangible net worth and working capital) and achievement of certain financial ratios (for example, working capital ratio and debt service coverage ratio), and adherence to certain clauses which generally require or restrict certain actions (for example, entering into a debt arrangement with equal or greater seniority, and selling or discontinuing a certain business segment or material subsidiary) to be in compliance with the covenant clauses of the debt agreement. May also include a discussion of the adverse consequences that would result if the entity violates or fails to satisfy the covenants.

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The reference rate for the variable rate of the debt instrument, such as LIBOR or the US Treasury rate and the maturity of the reference rate used, such as three months or six months LIBOR.

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No definition available.

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Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

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Contractual interest rate for funds borrowed, under the debt agreement.

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Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format.

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This item represents the entity's proportionate share for the period of the net income (loss) of its investee (such as unconsolidated subsidiaries and joint ventures) to which the equity method of accounting is applied. This item includes income or expense related to stock-based compensation based on the investor's grant of stock to employees of an equity method investee.

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Amount of investment in equity method investee and investment in and advance to affiliate.

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Including the current and noncurrent portions, carrying value as of the balance sheet date of long-term debt (with maturities initially due after one year or beyond the operating cycle if longer) identified as Junior Subordinated Notes, which have a lower priority than senior instruments.

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The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

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The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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The fee, expressed as a percentage of the line of credit facility, for the line of credit facility regardless of whether the facility has been used.

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No definition available.

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Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility.

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Amount of increase (decrease) of the credit facility.

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The effective interest rate at the end of the reporting period.

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Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which is directly or indirectly attributable to that ownership interest in subsidiary equity which is not attributable to the parent (that is, noncontrolling interest, previously referred to as minority interest).

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Amount of Net Income (Loss) attributable to noncontrolling interest.

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The cash inflow from a debt initially having maturity due after one year or beyond the operating cycle, if longer.

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The cash inflow from a borrowing with the highest claim on the assets of the entity in case of bankruptcy or liquidation (with maturities initially due after one year or beyond the operating cycle, if longer).

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The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer.

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The cash outflow for a long-term debt where the holder has highest claim on the entity's asset in case of bankruptcy or liquidation during the period.

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Including the current and noncurrent portions, carrying value as of the balance sheet date of Notes with the highest claim on the assets of the issuer in case of bankruptcy or liquidation (with maturities initially due after one year or beyond the operating cycle if longer). Senior note holders are paid off in full before any payments are made to junior note holders.

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Number of shares that have been repurchased during the period and have not been retired and are not held in treasury. Some state laws may govern the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock.

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Debt Obligations (Debt Narrative) (Details) - USD ($) $ in Millions	1 Months Ended					12 Months Ended
	Jan. 31, 2019	Oct. 31, 2018	Jun. 30, 2018	Feb. 28, 2018	Jan. 31, 2018	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Mar. 31, 2018	Jan. 01, 2018	Nov. 30, 2017	Mar. 31, 2017	Aug. 01, 2016
Noncontrolling interest						$ 10,291	$ 31,176			$ 31,122
Less: Net income (loss) attributable to noncontrolling interest						1,632	1,412	$ (995)
Line of Credit Facility, Increase (Decrease), Net		$ 1,000
Repayments of Long-term Debt						28,948	31,268	19,076
Proceeds from Issuance of Senior Long-term Debt			$ 2,960		$ 2,200
Repayments of Senior Debt			1,650
Long-term Debt						46,028	44,084
Proceeds from borrowings						29,001	31,608	25,785
Advances to and investments in unconsolidated affiliates						2,642	2,705	3,040
Equity in earnings of unconsolidated affiliates						$ 344	144	270
Sunoco LP $1.5 billion Revolving Credit Facility due July 2023 [Member]
Debt Instrument, Covenant Description						Sunoco LP’s Credit Facility requires Sunoco LP to maintain a Net Leverage Ratio of not more than 5.5 to 1. The maximum Net Leverage Ratio is subject to upwards adjustment of not more than 6.0 to 1 for a period not to exceed three fiscal quarters in the event Sunoco LP engages in certain specified acquisitions of not less than $50 million (as permitted under Sunoco LP’s Credit Facility agreement). The Sunoco LP Credit Facility also requires Sunoco LP to maintain an Interest Coverage Ratio (as defined in the Sunoco LP’s Credit Facility agreement) of not less than 2.25 to 1.
USAC Credit Facility, due 2023 [Member]
Debt Instrument, Covenant Description						a maximum funded debt to EBITDA ratio, determined as of the last day of each fiscal quarter, for the annualized trailing three months of (i) 5.75 to 1 through the end of the fiscal quarter ending March 31, 2019, (ii) 5.5 to 1 through the end of the fiscal quarter ending December 31, 2019 and (iii) 5.0 to 1 thereafter, in each case subject to a provision for increases to such thresholds by 0.50 in connection with certain future acquisitions for the six consecutive month period following the period in which any such acquisition occurs.
Parent Company [Member]
Repayments of Long-term Debt						$ 1,651	1,881	210
Long-term Debt						5,520	6,700
Proceeds from borrowings						463	2,219	225
Advances to and investments in unconsolidated affiliates						26,581	6,082
Equity in earnings of unconsolidated affiliates						$ 2,092	1,381	$ 1,511
Parent Company [Member] \| ETE Senior Secured Term Loan due February 2, 2024 [Member]
Debt Instrument, Maturity Date						Feb. 02, 2024
Line of Credit Facility, Maximum Borrowing Capacity						$ 2,200
Parent Company [Member] \| ETE Senior Secured Revolving Credit Facility due March 24, 2022 [Member]
Outstanding borrowings						$ 0	1,188
Debt Instrument, Maturity Date						Mar. 24, 2022
Parent Company [Member] \| 4.25% Senior Notes due March 15, 2023 [Member]
Senior Notes						$ 1,000	1,000
Proceeds from Issuance of Senior Long-term Debt						$ 990
Debt instrument, interest rate, stated percentage						4.25%
Debt Instrument, Maturity Date						Mar. 15, 2023
Parent Company [Member] \| 5.5% Senior Notes due June 1, 2027 [Member]
Senior Notes						$ 1,000	1,000
Debt instrument, interest rate, stated percentage						5.50%
Debt Instrument, Maturity Date						Jun. 01, 2027
Parent Company [Member] \| 5.875% Senior Notes due January 15, 2024 [Member]
Senior Notes						$ 1,150	1,150
Debt instrument, interest rate, stated percentage						5.88%
Debt Instrument, Maturity Date						Jan. 15, 2024
USA Compression Partners, LP [Member]
Senior Notes						$ 725	0
Long-term Debt						1,759	0
Outstanding borrowings						1,050	0
USA Compression Partners, LP [Member] \| USAC Credit Facility, due 2023 [Member]
Line of Credit Facility, Current Borrowing Capacity						1,600
USAC [Member] \| 6.875% Senior notes due April 2026 [Member]
Senior Notes									$ 725
Debt instrument, interest rate, stated percentage									6.875%
USAC [Member] \| USAC Credit Facility, due 2023 [Member]
Letters of Credit Outstanding, Amount						0
Outstanding borrowings						$ 1,050
Line of Credit Facility, Interest Rate at Period End						4.69%
Line of Credit Facility, Remaining Borrowing Capacity						$ 550
ETO [Member]
Long-term Debt						32,288	29,210
ETO [Member] \| 9.7% Senior Notes, due March 15, 2019 [Member]
Senior Notes						$ 400	400
Debt instrument, interest rate, stated percentage						9.70%
Debt Instrument, Maturity Date						Mar. 15, 2019
ETO [Member] \| 9.0% Senior Notes due April 15, 2019 [Member]
Senior Notes						$ 450	450
Debt instrument, interest rate, stated percentage						9.00%
Debt Instrument, Maturity Date						Apr. 15, 2019
ETO [Member] \| ETO Credit Facility due December 2022 [Member]
Line of Credit Facility, Current Borrowing Capacity		$ 4,000				$ 5,000
Letters of Credit Outstanding, Amount						63
Outstanding borrowings						3,694	2,292
Long-term Commercial Paper, Noncurrent						$ 2,340
Line of Credit Facility, Interest Rate at Period End						3.57%
Line of Credit Facility, Remaining Borrowing Capacity						$ 1,240
ETO [Member] \| 2.50% Senior Notes due June 2018 [Member]
Senior Notes			$ 650			$ 0	650
Debt instrument, interest rate, stated percentage			2.50%			2.50%
Debt Instrument, Maturity Date						Jun. 15, 3028
ETO [Member] \| 6.7% Senior Notes, due July 1, 2018 [Member]
Senior Notes			$ 600			$ 0	600
Debt instrument, interest rate, stated percentage			6.70%			6.70%
Debt Instrument, Maturity Date						Jul. 01, 2018
ETO [Member] \| 5.35% Senior Notes due May 15, 2045 [Member]
Senior Notes						$ 800	800
Debt instrument, interest rate, stated percentage						5.35%
Debt Instrument, Maturity Date						May 15, 2045
ETO [Member] \| 3.26% Junior Subordinated Notes due November 1, 2066 [Member]
Debt Instrument, Interest Rate, Effective Percentage						5.559%
Junior Subordinated Notes						$ 546	546
Debt instrument, interest rate, stated percentage						7.20%
Debt Instrument, Maturity Date						Nov. 01, 2066
ETO [Member] \| 4.25% Senior Notes due April 1, 2024 [Member]
Senior Notes						$ 500	500
Debt instrument, interest rate, stated percentage						4.25%
Debt Instrument, Maturity Date						Apr. 01, 2024
ETO [Member] \| 5.875% Senior Notes due April 1, 2022 [Member]
Senior Notes						$ 900	900
Debt instrument, interest rate, stated percentage						5.88%
Debt Instrument, Maturity Date						Mar. 01, 2022
ETO [Member] \| 5.0% Senior Notes due October 1, 2022 [Member]
Senior Notes						$ 700	700
Debt instrument, interest rate, stated percentage						5.00%
Debt Instrument, Maturity Date						Oct. 01, 2022
ETO [Member] \| 4.40% Senior Notes due April 2021 [Member]
Senior Notes						$ 600	600
Debt instrument, interest rate, stated percentage						4.40%
Debt Instrument, Maturity Date						Apr. 01, 2021
ETO [Member] \| 3.90% Senior Notes due July 15, 2026 [Member]
Senior Notes						$ 550	550
Debt instrument, interest rate, stated percentage						3.90%
Debt Instrument, Maturity Date						Jul. 15, 2026
ETO [Member] \| ETO 364-day Credit Facility due November 2019 [Member]
Outstanding borrowings						$ 0	50
Line of Credit Facility, Maximum Borrowing Capacity						1,000
ETO [Member] \| 4.20% Senior Notes due 2023 [Member]
Senior Notes			$ 500			500	0
Debt instrument, interest rate, stated percentage			4.20%
ETO [Member] \| 4.95% Senior Notes due 2028 [Member]
Senior Notes			$ 1,000			1,000	0
Debt instrument, interest rate, stated percentage			4.95%
ETO [Member] \| 5.80% Senior Notes due 2038 [Member]
Senior Notes			$ 500			500	0
Debt instrument, interest rate, stated percentage			5.80%
ETO [Member] \| 6.0% Senior Notes due 2048 [Member]
Senior Notes			$ 1,000			$ 1,000	0
Debt instrument, interest rate, stated percentage			6.00%
ETO [Member] \| Minimum [Member] \| ETO Credit Facility due December 2022 [Member]
Line of Credit Facility, Commitment Fee Percentage						0.125%
ETO [Member] \| Minimum [Member] \| ETO 364-day Credit Facility due November 2019 [Member]
Line of Credit Facility, Commitment Fee Percentage						0.125%
ETO [Member] \| Maximum [Member] \| ETO Credit Facility due December 2022 [Member]
Line of Credit Facility, Commitment Fee Percentage						0.30%
ETO [Member] \| Maximum [Member] \| ETO 364-day Credit Facility due November 2019 [Member]
Line of Credit Facility, Commitment Fee Percentage						0.225%
Panhandle [Member]
Long-term Debt						$ 399	813
Panhandle [Member] \| 7.00% Senior Notes, due June 15, 2018 [Member]
Senior Notes			$ 400			$ 0	400
Debt instrument, interest rate, stated percentage			7.00%			7.00%
Debt Instrument, Maturity Date						Jun. 15, 2018
Panhandle [Member] \| 3.26% Junior Subordinated Notes due November 1, 2066 [Member]
Junior Subordinated Notes						$ 54	54
Panhandle [Member] \| Junior Subordinated Debt [Member]
Debt Instrument, Description of Variable Rate Basis						three-month LIBOR rate plus 3.0175%
Panhandle [Member] \| 8.125% Senior Notes, due June 1, 2019 [Member]
Senior Notes						$ 150	150
Debt instrument, interest rate, stated percentage						8.125%
Debt Instrument, Maturity Date						Jun. 01, 2019
Bakken Project [Member]
Long-term Debt						$ 2,497	2,492
Bakken Project [Member] \| Bakken Project $2.50 billion Credit Facility due August 2019 [Member]
Line of Credit Facility, Current Borrowing Capacity						2,500
Outstanding borrowings						$ 2,500	2,500						$ 2,500
Line of Credit Facility, Interest Rate at Period End						4.27%
Sunoco LP [Member]
Long-term Debt						$ 2,984	4,287
Stock Repurchased During Period, Shares				17,286,859
Sunoco LP [Member] \| Term loan due 2019 [Member]
Outstanding borrowings						0	1,243
Line of Credit Facility, Maximum Borrowing Capacity							2,035
Sunoco LP [Member] \| Sunoco LP $1.5 Billion Revolving Credit Facility Due September 2019 [Member]
Outstanding borrowings						0	765
Sunoco LP [Member] \| 5.5% Senior Notes due August 2020 [Member]
Senior Notes					$ 600	$ 0	600
Debt instrument, interest rate, stated percentage					5.50%	5.50%
Debt Instrument, Maturity Date						Aug. 01, 2020
Sunoco LP [Member] \| 4.875% senior notes due 2023 [Member]
Senior Notes					$ 1,000	$ 1,000	0
Debt instrument, interest rate, stated percentage					4.875%
Sunoco LP [Member] \| 5.500% senior notes due 2026 [Member]
Senior Notes					$ 800	800	0
Debt instrument, interest rate, stated percentage					5.50%
Sunoco LP [Member] \| 5.875% senior notes due 2028 [Member]
Senior Notes					$ 400	400	0
Debt instrument, interest rate, stated percentage					5.875%
Sunoco LP [Member] \| 6.375% Senior Notes due April 2023 [Member]
Senior Notes					$ 800	$ 0	800
Debt instrument, interest rate, stated percentage					6.375%	6.38%
Debt Instrument, Maturity Date						Apr. 01, 2023
Sunoco LP [Member] \| 6.25% Senior Notes due 2021 [Member]
Senior Notes					$ 800	$ 0	800
Debt instrument, interest rate, stated percentage					6.25%	6.25%
Debt Instrument, Maturity Date						Apr. 15, 2021
Sunoco LP [Member] \| Sunoco LP $1.5 billion Revolving Credit Facility due July 2023 [Member]
Line of Credit Facility, Current Borrowing Capacity						$ 1,500
Letters of Credit Outstanding, Amount						8
Outstanding borrowings						$ 700	$ 0
Line of Credit Facility, Interest Rate at Period End						4.45%
Line of Credit Facility, Remaining Borrowing Capacity						$ 792
Series A Preferred Units [Member]
Preferred Units, Liquidation Spread, Percent											4.028%
Series A Preferred Units [Member] \| Sunoco LP [Member]
Preferred Units, Liquidation Spread, Percent												8.00%
Series B Preferred Units [Member]
Preferred Units, Liquidation Spread, Percent											4.155%
Accordion feature [Member] \| USA Compression Partners, LP [Member] \| USAC Credit Facility, due 2023 [Member]
Outstanding borrowings						400
Accordion feature [Member] \| ETO [Member] \| ETO Credit Facility due December 2022 [Member]
Line of Credit Facility, Current Borrowing Capacity						$ 6,000
Eurodollar [Member] \| Maximum [Member]
Debt Instrument, Basis Spread on Variable Rate						2.00%
Eurodollar [Member] \| ETO [Member] \| Minimum [Member] \| ETO Credit Facility due December 2022 [Member]
Debt Instrument, Basis Spread on Variable Rate						1.125%
Eurodollar [Member] \| ETO [Member] \| Minimum [Member] \| ETO 364-day Credit Facility due November 2019 [Member]
Debt Instrument, Basis Spread on Variable Rate						1.125%
Eurodollar [Member] \| ETO [Member] \| Maximum [Member] \| ETO 364-day Credit Facility due November 2019 [Member]
Debt Instrument, Basis Spread on Variable Rate						1.75%
Base Rate Loans [Member] \| ETO [Member] \| Minimum [Member] \| ETO Credit Facility due December 2022 [Member]
Debt Instrument, Basis Spread on Variable Rate						0.125%
Base Rate Loans [Member] \| ETO [Member] \| Minimum [Member] \| ETO 364-day Credit Facility due November 2019 [Member]
Debt Instrument, Basis Spread on Variable Rate						0.25%
Base Rate Loans [Member] \| ETO [Member] \| Maximum [Member] \| ETO Credit Facility due December 2022 [Member]
Debt Instrument, Basis Spread on Variable Rate						1.00%
Base Rate Loans [Member] \| ETO [Member] \| Maximum [Member] \| ETO 364-day Credit Facility due November 2019 [Member]
Debt Instrument, Basis Spread on Variable Rate						0.75%
Subsequent Event [Member]
Proceeds from Issuance of Senior Long-term Debt	$ 3,960
Subsequent Event [Member] \| ETO [Member] \| 9.7% Senior Notes, due March 15, 2019 [Member]
Repayments of Senior Debt	$ 400
Debt instrument, interest rate, stated percentage	9.70%
Subsequent Event [Member] \| ETO [Member] \| 9.0% Senior Notes due April 15, 2019 [Member]
Repayments of Senior Debt	$ 450
Debt instrument, interest rate, stated percentage	9.00%
Subsequent Event [Member] \| ETO [Member] \| 4.5% Senior Notes due 2024 [Member]
Senior Notes	$ 750
Debt instrument, interest rate, stated percentage	4.50%
Subsequent Event [Member] \| ETO [Member] \| 6.25% Senior Notes due 2049 [Member]
Senior Notes	$ 1,750
Debt instrument, interest rate, stated percentage	6.25%
Subsequent Event [Member] \| ETO [Member] \| 5.25% Senior Notes due 2029 [Member]
Senior Notes	$ 1,500
Debt instrument, interest rate, stated percentage	5.25%
Subsequent Event [Member] \| Panhandle [Member] \| 8.125% Senior Notes, due June 1, 2019 [Member]
Repayments of Senior Debt	$ 150
Debt instrument, interest rate, stated percentage	8.125%