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Capital Stock (Details) - $ / shares |  | 1 Months Ended | 3 Months Ended |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | ---
Nov. 03, 2021 | Apr. 30, 2021 | Sep. 30, 2021 | Jun. 30, 2021 | Mar. 31, 2021 | Sep. 30, 2020 | Jun. 30, 2020 | Mar. 31, 2020 | Oct. 04, 2021 | Oct. 01, 2021 | Sep. 29, 2021 | Sep. 28, 2021 | Dec. 31, 2020
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Common stock, issued (shares) |  |  | 478,621,499 |  |  |  |  |  |  |  |  |  | 477,828,813
Common stock, authorized (shares) |  |  | 960,000,000 |  |  |  |  |  |  |  | 1,800,000,000 | 960,000,000 | 960,000,000
Cash dividends, per share (in dollars per share) |  | $ 0.11 | $ 0.11 | $ 0.11 | $ 0.10 | $ 0.10 | $ 0.10 | $ 0.10 |  |  |  |  |
Subsequent event |  |  |  |  |  |  |  |  |  |  |  |  |
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Cash dividends, per share (in dollars per share) | $ 0.125 |  |  |  |  |  |  |  |  |  |  |  |
Dividend payable (in dollars per share) | 0.30 |  |  |  |  |  |  |  | $ 0.50 |  |  |  |
Variable dividend payable (in dollars per share) | $ 0.175 |  |  |  |  |  |  |  |  |  |  |  |
Subsequent event | Cimarex Stockholders |  |  |  |  |  |  |  |  |  |  |  |  |
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Common stock, issued (shares) |  |  |  |  |  |  |  |  |  | 408,200,000 |  |  |

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- Definition Aggregate dividends declared during the period for each share of common stock outstanding. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=120397183&loc=d3e187085-122770 + Details
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