The amount of expense during a period related to right of way contractual agreements.

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The amount of penalty by the EPA or another regulatory authority from alleged failure to comply with environmental regulations.

+ References

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Site Contingency, Number of Sites Needing Remediation

+ References

No definition available.

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Total costs accrued as of the balance sheet date for environmental loss contingencies.

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- Definition

Amount of amortization expense for asset recognized from cost incurred to obtain or fulfill contract with customer.

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- Definition

Percentage investment held by members or limited partners of limited liability company (LLC) or limited partnership (LP).

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- Definition

Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for loans and leases covered under loss sharing agreements.

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Amount of loss contingency liability.

+ References

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Number of pending claims pertaining to a loss contingency.

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The difference between the maximum amount of estimated loss and the amount recorded as of the balance sheet date.

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For an unclassified balance sheet, amounts due from parties associated with the reporting entity as evidenced by a written promise to pay.

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Cash outflows made during the period for environmental remediation activities.

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The amount of cash paid for the settlement of litigation or for other legal issues during the period.

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The cash inflow from a loan, supported by a promissory note, granted to related parties where one party can exercise control or significant influence over another party; including affiliates, owners or officers and their immediate families, pension trusts, and so forth.

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Amount of transaction price allocated to performance obligation that has not been recognized as revenue.

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Regulatory Matters Narrative (Details) $ in Millions		3 Months Ended		9 Months Ended
Regulatory Matters Narrative (Details) $ in Millions	Jan. 01, 2020 USD ($)	Sep. 30, 2020 USD ($)	Sep. 30, 2019 USD ($)	Sep. 30, 2020 USD ($)	Sep. 30, 2019 USD ($)	Dec. 31, 2019 USD ($)
Contractual Right of Way, Expense		$ 13.0	$ 5.0	$ 32.0	$ 17.0
Loss contingency accrual, at carrying value		86.0		86.0		$ 120.0
Loss Contingency, Range of Possible Loss, Portion Not Accrued		80.0		80.0
Accrual for Environmental Loss Contingencies		298.0		298.0		$ 320.0
Payments for Environmental Liabilities		7.0	16.0	22.0	31.0
Revenue, Remaining Performance Obligation, Amount		39,503.0		39,503.0
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2020-10-01
Revenue, Remaining Performance Obligation, Amount		1,633.0		1,633.0
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-01-01
Revenue, Remaining Performance Obligation, Amount		5,674.0		5,674.0
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-01-01
Revenue, Remaining Performance Obligation, Amount		5,180.0		5,180.0
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2023-01-01
Revenue, Remaining Performance Obligation, Amount		27,016.0		27,016.0
Traverse
Capitalized Contract Cost, Amortization		$ 4.0	4.0	$ 14.0	12.0
Sunoco, Inc. [Member]
Loss Contingency, Pending Claims, Number		5		5
Revolution Pipeline [Member]
Payments for Legal Settlements	$ 2.0
SPLP [Member]
Environmental Penalty				$ 5.4
SPLP and Mid-Valley Pipeline [Member]
Environmental Penalty				$ 1.0
Sunoco [Member]
Sites where remediation operations are responsibility of third parties		31		31
Civil Penalties [Member] \| Revolution Pipeline [Member]
Payments for Legal Settlements	$ 28.6
PES [Member]
Limited Liability Company or Limited Partnership, Members or Limited Partners, Ownership Interest		7.40%
PES [Member]
Notes Receivable, Related Parties			$ 75.0		$ 75.0
Repayment of Notes Receivable from Related Parties				$ 12.0
Loans and Leases Receivable, Allowance		$ 63.0		$ 63.0