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Regulatory Matters, Commitments, Contingencies And Environmental Liabilities Narrative (Details) |  | 1 Months Ended | 3 Months Ended | 12 Months Ended
--- | --- | --- | --- | ---
Aug. 01, 2020 USD ($) | Jun. 30, 2022 USD ($) | Nov. 30, 2017 USD ($) | Mar. 31, 2025 USD ($) sites Rate | Dec. 31, 2024 USD ($) | Mar. 31, 2024 USD ($) | Dec. 31, 2024 USD ($)
Payments for Legal Settlements |  | $ 21,000,000 |  |  |  |  |
Accrual for Environmental Loss Contingencies |  |  |  | $ 276,000,000 | $ 278,000,000 |  | $ 278,000,000
Loss Contingency, Estimate of Possible Loss |  |  |  | 42,000,000 |  |  |
Litigation Settlement, Expense |  |  |  | 161,000,000 |  |  |
Payments for Environmental Liabilities |  |  |  | $ 2,000,000 |  | $ 3,000,000 |
Interest Statutory Rate | Rate |  |  |  | 12.00% |  |  |
ROW Expense |  |  |  | $ 16,000,000 |  | $ 13,000,000 |
State of Ohio and Ohio Environmental Protection Agency |  |  |  |  |  |  |
Loss Contingency, Damages Sought, Value |  |  | $ 3,000,000 |  |  |  |
Proposed Civil Penalty |  |  |  |  |  |  |
Payments for Legal Settlements |  |  |  | 20,000,000 |  |  |
Litigation Settlement, Expense |  |  |  | 40,000,000 |  |  |
Related To Deductibles |  |  |  |  |  |  |
Loss Contingency Accrual, at Carrying Value |  |  |  | $ 316,000,000 | 281,000,000 |  | 281,000,000
Sunoco, Inc. [Member] |  |  |  |  |  |  |
Loss Contingency, Pending Claims, Number |  |  |  | 2 |  |  |
Sunoco [Member] |  |  |  |  |  |  |
Site Contingency, Number of Sites Needing Remediation | sites |  |  |  | 31 |  |  |
USAC [Member] | Internal Revenue Service (IRS) |  |  |  |  |  |  |
Loss Contingency, Estimate of Possible Loss |  |  |  | $ 29,000,000 |  |  |
Loss Contingency, Estimate of Possible Loss |  |  |  | 1,000,000 |  |  |
Crestwood |  |  |  |  |  |  |
Litigation Settlement, Amount Awarded from Other Party |  |  |  |  | 22,000,000 |  |
Crestwood | pre-judgement interest award |  |  |  |  |  |  |
Litigation Settlement, Amount Awarded to Other Party |  |  |  |  | 21,000,000 |  |
Crestwood | attorney fees |  |  |  |  |  |  |
Litigation Settlement, Amount Awarded to Other Party |  |  |  |  | 18,000,000 |  |
Crestwood | other costs |  |  |  |  |  |  |
Litigation Settlement, Amount Awarded to Other Party |  |  |  |  | $ 5,000,000 |  |
Cline Class Action | Additional Interest |  |  |  |  |  |  |
Litigation Settlement Interest |  |  |  | 23,000,000 |  |  |
Cline Class Action | Actual Damages |  |  |  |  |  |  |
Litigation Settlement Interest |  |  |  | 104,000,000 |  |  |
Cline Class Action | punitive damages |  |  |  |  |  |  |
Litigation Settlement Interest |  |  |  | 75,000,000 |  |  |
Cline Class Action | Actual Damages |  |  |  |  |  |  |
Payments for Legal Settlements | $ 75,000,000 |  |  |  |  |  | 81,000,000
Cline Class Action | punitive damages |  |  |  |  |  |  |
Payments for Legal Settlements |  |  |  |  |  |  | $ 75,000,000
Massachusetts Attorney General |  |  |  |  |  |  |
Legal Fees |  |  |  | $ 18,000,000 |  |  |

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