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

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The percent of a statutory interest rate applied to a litigation settlement.

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Loss Contingency, Reversal of Damages Awarded, Value

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Site Contingency, Number of Sites Needing Remediation

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

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Estimated amount of loss resulting from an adverse tax position.

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Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Amount of loss contingency liability.

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Amount of damages awarded to the plaintiff in the legal matter.

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Amount of damages paid to the plaintiff in the legal matter.

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The value (monetary amount) of the award the plaintiff seeks in the legal matter.

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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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- Definition

Cash outflows made during the period for environmental remediation activities.

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Regulatory Matters, Commitments, Contingencies And Environmental Liabilities Narrative (Details)								1 Months Ended	3 Months Ended		6 Months Ended
	Dec. 17, 2024 USD ($)	Sep. 28, 2023 USD ($) Rate	Jan. 09, 2023 USD ($)	Dec. 02, 2022 USD ($)	Oct. 24, 2022 USD ($)	Aug. 30, 2020 USD ($)	Aug. 17, 2020 USD ($)	Nov. 30, 2017 USD ($)	Jun. 30, 2025 USD ($) sites	Jun. 30, 2024 USD ($)	Jun. 30, 2025 USD ($) sites	Jun. 30, 2024 USD ($)	Dec. 31, 2024 USD ($)
Accrual for Environmental Loss Contingencies									$ 273,000,000		$ 273,000,000		$ 278,000,000
Loss Contingency Accrual, at Carrying Value									305,000,000		305,000,000		$ 281,000,000
Loss Contingency, Estimate of Possible Loss									42,000,000		42,000,000
Payments for Environmental Liabilities											7,000,000	$ 4,000,000
ROW Expense									19,000,000	$ 14,000,000	35,000,000	27,000,000
Income tax expense									$ 79,000,000	$ 227,000,000	$ 120,000,000	$ 316,000,000
State of Ohio and Ohio Environmental Protection Agency
Loss Contingency, Damages Sought, Value								$ 3,000,000
Sunoco, Inc. [Member]
Loss Contingency, Pending Claims, Number									2		2
Sunoco [Member]
Site Contingency, Number of Sites Needing Remediation \| sites									31		31
USAC [Member] \| Internal Revenue Service (IRS)
Income Tax Examination, Estimate of Possible Loss											$ 29,000,000
Income tax expense											1,000,000
Rover - FERC - Tuscarawas \| Proposed Civil Penalty
Loss Contingency, Damages Sought, Value											40,000,000
Sunoco LP [Member] \| New York Motor Fuel Excise Tax Audit
Loss Contingency, Damages Sought, Value											20,000,000
Cline Class Action
Interest Statutory Rate \| Rate		12.00%
Loss Contingency, Damages Paid, Value				$ 161,000,000
Cline Class Action \| punitive damages
Loss Contingency, Damages Awarded, Value		$ 75,000,000
Cline Class Action \| Additional Interest
Loss Contingency, Damages Awarded, Value		23,000,000
Cline Class Action \| Actual Damages
Loss Contingency, Damages Awarded, Value		$ 104,000,000
Cline Class Action \| Actual Damages
Loss Contingency, Damages Awarded, Value						$ 81,000,000	$ 75,000,000
Cline Class Action \| punitive damages
Loss Contingency, Damages Awarded, Value							$ 75,000,000
Rover - FERC Stoneman House \| Pending Litigation
Loss Contingency, Damages Sought, Value											20,000,000
Massachusetts Attorney General v. New England Gas Company \| Legal Fees
Loss Contingency, Damages Sought, Value											18,000,000
Linde Engineering North America Inc. \| Crestwood
Loss Contingency, Damages Paid, Value			$ 21,000,000
Loss Contingency, Reversal of Damages Awarded, Value	$ 22,000,000
Linde Engineering North America Inc. \| Crestwood \| punitive damages
Loss Contingency, Damages Awarded, Value	21,000,000				$ 21,000,000
Loss Contingency, Reversal of Damages Awarded, Value	18,000,000
Linde Engineering North America Inc. \| Crestwood \| other costs
Loss Contingency, Damages Awarded, Value					5,000,000
Loss Contingency, Reversal of Damages Awarded, Value	$ 5,000,000
Linde Engineering North America Inc. \| Crestwood \| pre-judgement interest award
Loss Contingency, Damages Awarded, Value					$ 18,000,000
State of Oklahoma Attorney General - Winter Storm Uri
Loss Contingency, Damages Sought, Value											$ 75,000