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Regulatory Matters, Commitments, Contingencies And Environmental Liabilities (Narrative) (Details) |  |  |  | 12 Months Ended
--- | --- | --- | --- | ---
Sep. 21, 2022 USD ($) | Dec. 29, 2021 USD ($) | Aug. 01, 2020 USD ($) | Dec. 31, 2022 USD ($) | Dec. 31, 2021 USD ($) | Dec. 31, 2020 USD ($)
Operating Leases, Rent Expense |  |  |  | $ 64,000,000 | $ 48,000,000 | $ 47,000,000
Payments for Environmental Liabilities |  |  |  | 30,000,000 | 28,000,000 |
Total environmental liabilities |  |  |  | $ 282,000,000 | $ 293,000,000 |
Site Contingency, Number of Sites Needing Remediation |  |  |  | 31 |  |
Loss Contingency, Estimate of Possible Loss |  |  |  | $ 750,000,000 |  |
Litigation Settlement, Expense |  |  |  | 161,000,000 |  |
Legal Fees |  |  |  | $ 18,000,000 |  |
Environmental Loss Contingency, Statement of Financial Position [Extensible Enumeration] |  |  |  | Other non-current liabilities | Other non-current liabilities |
Williams |  |  |  |  |  |
Loss Contingency, Damages Sought, Value |  |  |  | $ 410,000,000 |  |
Litigation Settlement, Expense | $ 601,000,000 |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage | 3.50% |  |  |  |  |
Litigation Settlement, Amount Awarded to Other Party |  | $ 190,000,000 |  |  |  |
Cline Class Action | Actual Damages |  |  |  |  |  |
Payments for Legal Settlements |  |  | $ 74,800,000 |  |  |
Cline Class Action | Punitive Damages [Member] |  |  |  |  |  |
Payments for Legal Settlements |  |  | 75,000,000 |  |  |
Cline Class Action | Amended Actual Damages |  |  |  |  |  |
Payments for Legal Settlements |  |  | $ 80,700,000 |  |  |
Proposed Civil Penalty |  |  |  |  |  |
Payments for Legal Settlements |  |  |  | 20,000,000 |  |
Litigation Settlement, Expense |  |  |  | 40,000,000 |  |
Culberson |  |  |  |  |  |
Loss Contingency, Damages Sought, Value |  |  |  | 93,000,000 |  |
Related To Deductibles [Member] |  |  |  |  |  |
Loss Contingency Accrual |  |  |  | $ 200,000,000 | $ 144,000,000 |

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