Carrying value as of the balance sheet date of short-term borrowings using unsecured obligations issued by banks, corporations and other borrowers to investors. The maturities of these money market securities generally do not exceed 270 days.

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

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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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Ratio of Tier 1 risk-based capital to total leverage exposure as defined by regulatory framework.

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Debt Obligations Narrative (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Apr. 01, 2022
Debt Instrument [Line Items]
Long-term Line of Credit	$ 618.0
Repayments of Long-term Debt	21,110.0	$ 17,836.0
Proceeds from Issuance of Long-term Debt	$ 19,400.0	$ 11,839.0
Banking Regulation, Supplementary Leverage Ratio, Actual	3.35
Dakota Access
Debt Instrument [Line Items]
Senior Notes			$ 650.0
Debt Instrument, Interest Rate, Stated Percentage			3.625%
ETO Credit Facility due December 2022 [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Current Borrowing Capacity	$ 2,320.0
Long-term Line of Credit	2,650.0
Letters of Credit Outstanding, Amount	$ 38.0
Line of Credit Facility, Interest Rate at Period End	4.29%
Line of Credit Facility, Maximum Borrowing Capacity	$ 5,000.0
Commercial Paper	825.0
ETO Credit Facility due December 2022 [Member] \| Accordion feature [Member]
Debt Instrument [Line Items]
Long-term Line of Credit	7,000.0
Sunoco LP $1.5 billion Revolving Credit Facility due July 2023 [Member] \| Sunoco LP [Member]
Debt Instrument [Line Items]
Letters of Credit Outstanding, Amount	$ 7.0
Line of Credit Facility, Interest Rate at Period End	5.11%
Line of Credit Facility, Remaining Borrowing Capacity	$ 789.0
Line of Credit Facility, Fair Value, Basis for Measurement	704 million
USAC Credit Facility, due 2023 [Member] \| USAC [Member]
Debt Instrument [Line Items]
Long-term Line of Credit	$ 982.0
Line of Credit Facility, Interest Rate at Period End	5.54%
Line of Credit Facility, Remaining Borrowing Capacity	$ 287.0
4.65% Senior Notes due February 2022
Debt Instrument [Line Items]
Senior Notes	$ 300.0
Debt Instrument, Interest Rate, Stated Percentage	4.65%
5.00% Senior Notes due October 2022
Debt Instrument [Line Items]
Senior Notes	$ 700.0
Debt Instrument, Interest Rate, Stated Percentage	5.00%