The amount of goodwill arising from a business combination that is expected to be not deductible for tax purposes.

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

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Number of shares of equity interests issued or issuable to acquire entity.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Price of a single share of a number of saleable stocks paid or offered to be paid in a business combination.

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This element represents the fair value of the noncontrolling interest in the acquiree at the acquisition date.

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Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

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Fair value at acquisition-date of the assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interests issued by the acquirer, including but not limited to, instruments or interests issued or issuable in consideration for the business combination.

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Amount of assets acquired at the acquisition date.

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Amount of liabilities due within one year or within the normal operating cycle, if longer, assumed at the acquisition date.

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The amount of financial liabilities assumed (as defined) which have been recognized as of the acquisition date.

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Amount of intangible assets, excluding goodwill, acquired at the acquisition date.

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Amount of liabilities assumed at the acquisition date.

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Amount recognized as of the acquisition date for the identifiable assets acquired in excess of (less than) the aggregate liabilities assumed.

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Amount of assets expected to be realized or consumed after one year or the normal operating cycle, if longer, acquired at the acquisition date.

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Amount of long-term debt due after one year or the normal operating cycle, if longer, assumed at the acquisition date.

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Amount of other liabilities due after one year or the normal operating cycle, if longer, assumed at the acquisition date.

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The amount of property, plant, and equipment recognized as of the acquisition date.

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Face amount per share of no-par value common stock.

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Per unit of ownership amount of dilution resulting from the issuance of additional unit for payment of unit distribution to unit-holder of a limited partnership (LP).

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Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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The charge against earnings resulting from the write down of long lived assets other than goodwill due to the difference between the carrying value and lower fair value.

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The number of shares issued or sold by the subsidiary or equity method investee per stock transaction.

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Acquisitions and Related Transactions Acquisitions (Current Transactions) (Details) - USD ($) $ / shares in Units, $ in Millions		1 Months Ended		3 Months Ended		12 Months Ended
	Dec. 05, 2019	Feb. 28, 2021	Oct. 31, 2018	Dec. 31, 2019	Sep. 30, 2019	Dec. 31, 2020	Dec. 31, 2019
Business Acquisition [Line Items]
Goodwill impairment				$ 9	$ 12	$ 2,815	$ 21
SemGroup [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment	$ 3,891
Business Acquisition, Purchase Price Allocation, Goodwill Expected to be Not Tax Deductible, Amount	295
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill	460
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets	6,057
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities	629
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Long-term Debt	2,576
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Other	197
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Financial Liabilities	241
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities	3,643
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net	1,592
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net	6,057
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Assets	617
Noncontrolling interest	822
Goodwill impairment						244
Other Asset Impairment Charges						$ 129
SemGroup [Member] \| Common Class A
Business Acquisition [Line Items]
Common Stock, No Par Value				$ 0.01			$ 0.01
Distribution Made to Limited Partner, Unit Distribution, Dilution Per Unit				6.80
SemGroup [Member] \| ET Common Units
Business Acquisition [Line Items]
Business Acquisition, Share Price				$ 0.7275			$ 0.7275
Preferred Units, Liquidation Spread, Percent				101.00%			101.00%
SemGroup [Member] \| Senior Notes [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Long-term Debt	1,375
SemGroup [Member] \| Subsidiaries [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Long-term Debt	$ 593
ETE Merger [Member]
Business Acquisition [Line Items]
Sale of Stock, Number of Shares Issued in Transaction			1,460,000,000
Enable \| Subsequent Event [Member]
Business Acquisition [Line Items]
Business Combination, Consideration Transferred		$ 10
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares		0.8595
Enable \| Subsequent Event [Member] \| Series G Preferred Units [Member]
Business Acquisition [Line Items]
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares		0.0265