Debt Obligations Narrative (Details) - USD ($) $ in Millions	Sep. 30, 2020	Jan. 31, 2020
USAC [Member]
Line of Credit Facility, Remaining Borrowing Capacity	$ 1,100
2.9% Senior Notes due 2025 [Member]
Senior Notes		$ 1,000
Debt Instrument, Interest Rate, Stated Percentage		2.90%
ETO Credit Facility due December 2022 [Member]
Long-term Commercial Paper, Noncurrent	1,630
Line of Credit Facility, Current Borrowing Capacity	1,650
Long-term Line of Credit	3,230
Line of Credit Facility, Maximum Borrowing Capacity	5,000
Letters of Credit Outstanding, Amount	$ 117
Line of Credit Facility, Interest Rate at Period End	1.16%
ETO Credit Facility due December 2022 [Member] \| Accordion feature [Member]
Long-term Line of Credit	$ 6,000
ETO 364-day Credit Facility due November 2019 [Member]
Long-term Line of Credit	0
Line of Credit Facility, Maximum Borrowing Capacity	1,000
Sunoco LP $1.5 billion Revolving Credit Facility due July 2023 [Member] \| Traverse
Line of Credit Facility, Current Borrowing Capacity	1,500
Long-term Line of Credit	87
Letters of Credit Outstanding, Amount	8
Line of Credit Facility, Remaining Borrowing Capacity	$ 1,410
Line of Credit Facility, Interest Rate at Period End	2.15%
USAC Credit Facility, due 2023 [Member] \| USA Compression Partners, LP [Member]
Line of Credit Facility, Current Borrowing Capacity	$ 1,600
Line of Credit Facility, Maximum Borrowing Capacity	400
USAC Credit Facility, due 2023 [Member] \| USAC [Member]
Long-term Line of Credit	497
Letters of Credit Outstanding, Amount	0
Line of Credit Facility, Remaining Borrowing Capacity	$ 412
Line of Credit Facility, Interest Rate at Period End	3.03%
ETO Term Loan [Member] \| ETO [Member]
Long-term Line of Credit	$ 2,000
Line of Credit Facility, Maximum Borrowing Capacity	$ 2,000
Line of Credit Facility, Interest Rate at Period End	1.15%
3.75% Senior Notes due 2030 [Member]
Senior Notes		$ 1,500
Debt Instrument, Interest Rate, Stated Percentage		3.75%
5.0% Senior Notes due 2050 [Member]
Senior Notes		$ 2,000
Debt Instrument, Interest Rate, Stated Percentage		5.00%
5.75% Senior Notes due September 1, 2020 [Member] \| ETO [Member]
Senior Notes		$ 400
Debt Instrument, Interest Rate, Stated Percentage		5.75%
4.15% Senior Notes due October 1, 2020 [Member] \| ETO [Member]
Senior Notes		$ 1,050
Debt Instrument, Interest Rate, Stated Percentage		4.15%
7.5% Senior Notes due October 15, 2020 [Member] \| ETO [Member]
Senior Notes		$ 1,140
Debt Instrument, Interest Rate, Stated Percentage		7.50%
5.50% Senior Notes, due February 15, 2020 [Member] \| ETO [Member]
Senior Notes		$ 250
Debt Instrument, Interest Rate, Stated Percentage		5.50%
5.36% Senior Unsecured Notes, due December 9, 2020 [Member] \| Transwestern [Member]
Senior Notes		$ 175
Debt Instrument, Interest Rate, Stated Percentage		5.36%
HFOTCO Tax Exempt Notes due 2050 [Member]
Senior Notes	$ 225
SemCAMS C$350 million senior secured term loan facility [Member] \| SemCAMS [Member]
Long-term Line of Credit	262
Line of Credit Facility, Fair Value of Amount Outstanding	253
SemCAMS C$525 million senior secured revolving credit facility [Member] \| SemCAMS [Member]
Long-term Line of Credit	394
SemCAMS C$300 million senior secured construction loan facility [Member] \| SemCAMS [Member]
Long-term Line of Credit	225
Line of Credit Facility, Fair Value of Amount Outstanding	74
KAPS Facility [Member] \| SemCAMS [Member]
Line of Credit Facility, Maximum Borrowing Capacity	187
Line of Credit Facility, Fair Value of Amount Outstanding	0
Parent Company [Member] \| ETE 7.5% Senior Notes due 2020 [Member]
Senior Notes		$ 52
Debt Instrument, Interest Rate, Stated Percentage		7.50%
Canada, Dollars \| SemCAMS C$350 million senior secured term loan facility [Member] \| SemCAMS [Member]
Long-term Line of Credit	350
Canada, Dollars \| SemCAMS C$525 million senior secured revolving credit facility [Member] \| SemCAMS [Member]
Long-term Line of Credit	525
Canada, Dollars \| SemCAMS C$300 million senior secured construction loan facility [Member] \| SemCAMS [Member]
Long-term Line of Credit	300
Canada, Dollars \| KAPS Facility [Member] \| SemCAMS [Member]
Line of Credit Facility, Maximum Borrowing Capacity	$ 250

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.

Name:	us-gaap_CommercialPaperNoncurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

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

+ References

+ Details

Name:	us-gaap_DebtInstrumentInterestRateStatedPercentage
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

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

+ References

No definition available.

+ Details

Name:	us-gaap_LettersOfCreditOutstandingAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

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.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(22))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(16))
-URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(16))
-URI http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910

+ Details

Name:	us-gaap_LineOfCredit
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

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.

+ References

+ Details

Name:	us-gaap_LineOfCreditFacilityCurrentBorrowingCapacity
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Fair value of the amount outstanding under the credit facility.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 10
-URI http://asc.fasb.org/extlink&oid=121572278&loc=d3e13433-108611

+ Details

Name:	us-gaap_LineOfCreditFacilityFairValueOfAmountOutstanding
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

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

+ References

+ Details

Name:	us-gaap_LineOfCreditFacilityInterestRateAtPeriodEnd
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

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.

+ References

+ Details

Name:	us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

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

+ References

+ Details

Name:	us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

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.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03.16(a))
-URI http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03.16)
-URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878

+ Details

Name:	us-gaap_SeniorNotes
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant