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Acquisitions and Dispositions - Schedule of Non-Recurring Restructuring and Transition-Related Costs (Details) - Concho Resources Incorporated - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2021 | Dec. 31, 2021
Business Acquisition [Line Items] |  |
Transaction Cost | $ 157 | $ 157
Restructuring Cost |  | 234
Total Cost |  | 391
Production and operating expenses |  |
Business Acquisition [Line Items] |  |
Transaction Cost |  |
Restructuring Cost |  | 128
Total Cost |  | 128
Selling, general and administration expenses |  |
Business Acquisition [Line Items] |  |
Transaction Cost |  | 135
Restructuring Cost |  | 67
Total Cost |  | 202
Exploration expenses |  |
Business Acquisition [Line Items] |  |
Transaction Cost |  | 18
Restructuring Cost |  | 8
Total Cost |  | 26
Taxes other than income taxes |  |
Business Acquisition [Line Items] |  |
Transaction Cost |  | 4
Restructuring Cost |  | 2
Total Cost |  | 6
Other expenses |  |
Business Acquisition [Line Items] |  |
Transaction Cost |  | 0
Restructuring Cost |  | 29
Total Cost |  | $ 29

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- Definition This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 25 -Paragraph 23 -URI https://asc.fasb.org/extlink&oid=123586518&loc=d3e1043-128460 + Details
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- Definition Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section 45 -Paragraph 3 -URI https://asc.fasb.org/extlink&oid=109237686&loc=d3e17752-110868 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 5.P.3) -URI https://asc.fasb.org/extlink&oid=115931487&loc=d3e140864-122747 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3602-108585 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB Topic 5.P.4(b)(1)) -URI https://asc.fasb.org/extlink&oid=115931487&loc=d3e140904-122747 + Details
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