Natural Gas and Oil Property Transactions - Narrative (Details) - USD ($) shares in Millions, $ in Millions | | | | | 1 Months Ended | 3 Months Ended | | | |
Apr. 28, 2023 | Mar. 20, 2023 | Mar. 25, 2022 | Mar. 09, 2022 | Mar. 31, 2022 | Mar. 31, 2023 | Mar. 31, 2022 | Feb. 28, 2023 | Jan. 31, 2023 | Dec. 31, 2022 |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] | | | | | | | | | | |
Natural gas and oil derivatives | | | | | | $ (930) | $ 2,125 | | | |
Costs and expenses | | | | | | 1,550 | 1,729 | | | |
Natural gas, oil and NGL | | | | | | | | | | |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] | | | | | | | | | | |
Revenue | | | | | | 1,453 | 1,914 | | | |
Marketing | | | | | | | | | | |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] | | | | | | | | | | |
Revenue | | | | | | 652 | $ 867 | | | |
Disposed of by Sale | Portion Of Remaining Eagle Ford Assets | | | | | | | | | | |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] | | | | | | | | | | |
Consideration | | | | | | | | $ 1,400 | | |
Property, plant and equipment | | | | | | 814 | | | | |
Other assets held-for-sale | | | | | | 26 | | | | |
Asset retirement obligations | | | | | | 53 | | | | |
Other liabilities | | | | | | 16 | | | | |
Right of use lease asset | | | | | | 22 | | | | |
Lease liabilities | | | | | | 22 | | | | |
Disposed of by Sale | Portion Of Remaining Eagle Ford Assets | Subsequent Event | | | | | | | | | | |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] | | | | | | | | | | |
Purchase price | $ 225 | | | | | | | | | |
Proceeds from divestitures of property and equipment | 1,055 | | | | | | | | | |
Disposed of by Sale | Powder River Basin | | | | | | | | | | |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] | | | | | | | | | | |
Gain (loss) on sale of oil and natural gas properties | | | $ 293 | | | | | | | |
Proceeds from divestitures of property and equipment | | | 450 | | | | | | | |
Disposed of by Sale | Powder River Basin | Post-Close Adjustments | | | | | | | | | | |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] | | | | | | | | | | |
Gain (loss) on sale of oil and natural gas properties | | | $ 13 | | | | | | | |
Disposed of by Sale | Portion Of Eagle Ford Assets | | | | | | | | | | |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] | | | | | | | | | | |
Consideration | | | | | | | | | $ 1,425 | |
Purchase price | | $ 225 | | | | | | | | |
Gain (loss) on sale of oil and natural gas properties | | 335 | | | | | | | | |
Property, plant and equipment | | | | | | | | | | $ 811 |
Other assets held-for-sale | | | | | | | | | | 8 |
Derivative liabilities | | | | | | | | | | 65 |
Asset retirement obligations | | | | | | | | | | 57 |
Other liabilities | | | | | | | | | | $ 22 |
Disposed of by Sale | Portion Of Eagle Ford Assets | Other Current Assets | | | | | | | | | | |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] | | | | | | | | | | |
Deferred consideration reflected with assets | | | | | | 55 | | | | |
Disposed of by Sale | Portion Of Eagle Ford Assets | Other Noncurrent Assets | | | | | | | | | | |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] | | | | | | | | | | |
Deferred consideration reflected with assets | | | | | | $ 125 | | | | |
Disposed of by Sale | First Three Years | Portion Of Eagle Ford Assets | | | | | | | | | | |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] | | | | | | | | | | |
Deferred consideration paid in installments | | 60 | | | | | | | | |
Disposed of by Sale | Fourth Year | Portion Of Eagle Ford Assets | | | | | | | | | | |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] | | | | | | | | | | |
Deferred consideration paid in installments | | $ 45 | | | | | | | | |
Disposed of by Sale | Next Four Years | Portion Of Remaining Eagle Ford Assets | Subsequent Event | | | | | | | | | | |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] | | | | | | | | | | |
Deferred consideration paid in installments | $ 56 | | | | | | | | | |
Marcellus | | | | | | | | | | |
Business Acquisition [Line Items] | | | | | | | | | | |
Consideration transferred | | | | $ 2,770 | | | | | | |
Cash | | | | $ 2,000 | | | | | | |
Shares issued in acquisition (in shares) | | | | 9.4 | | | | | | |
Acquisition related costs | | | | $ 23 | | | | | | |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] | | | | | | | | | | |
Natural gas and oil derivatives | | | | | $ 200 | | | | | |
Costs and expenses | | | | | 30 | | | | | |
Marcellus | Natural gas, oil and NGL | | | | | | | | | | |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] | | | | | | | | | | |
Revenue | | | | | $ 59 | | | | | |
Marcellus | Exit Credit Facility | | | | | | | | | | |
Business Acquisition [Line Items] | | | | | | | | | | |
Borrowings | | | | $ 914 | | | | | | |