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Summary Of Significant Accounting Policies (Narrative) (Details) $ in Millions | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2023 USD ($) a Customer | Dec. 31, 2022 USD ($) Customer | Dec. 31, 2021 USD ($) Customer | Feb. 28, 2024 USD ($) | Jun. 30, 2023
Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |
Gain on asset dispositions | $ 30 | $ 44 | $ 168 |  |
Number of customers | Customer | 2 | 1 | 2 |  |
Derivative collateral held | $ 0 |  |  |  |
Cash collateral posted | 0 |  |  |  |
Restricted cash | 22 | $ 140 | $ 172 |  |
Goodwill, Impairment Loss | $ 0 | 0 | 0 |  |
Subsequent Event |  |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |
Commitment to make future contributions, Amount |  |  |  | $ 90 |
Barnett Shale [Member] |  |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |
Restricted cash |  | $ 120 | $ 160 |  |
Minimum [Member] |  |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |
Other property and equipment, useful life | 3 years |  |  |  |
Maximum [Member] |  |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |
Other property and equipment, useful life | 60 years |  |  |  |
Customer Concentration Risk [Member] | One Customer [Member] | Consolidated Sales Revenue [Member] |  |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |
Concentration risk percentage | 14.00% | 15.00% | 19.00% |  |
Customer Concentration Risk [Member] | Two Customer [Member] | Consolidated Sales Revenue [Member] |  |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |
Concentration risk percentage | 10.00% |  | 12.00% |  |
Upstream Revenues [Member] |  |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |
Number of days allowed for payment from end of production month | 30 days |  |  |  |
Marketing Revenues [Member] |  |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |
Number of days allowed for payment of invoiced amount | 30 days |  |  |  |
CDM [Member] | QL Capital Partners, LP [Member] |  |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |
Cash Contributed | $ 37 |  | $ 3 |  |
Cash distribution from entities | $ 45 | $ 30 | $ 20 |  |
WPX and Howard Energy Partners [Member] |  |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |
Voting interest in the join venture legal entity | 50.00% |  |  |  |
Water JV [Member] |  |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |
Voting interest in the join venture legal entity | 70.00% |  |  |  | 30.00%
Investment in Catalyst | $ 216 |  |  |  |
Net assets | 27 |  |  |  |
Gain on asset dispositions | $ 64 |  |  |  |
Catalyst [Member] |  |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |
Area of land | a | 50,000 |  |  |  |
Investment in Catalyst | $ 311 |  |  |  |
Net assets | $ 112 |  |  |  |

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