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Stockholders' Equity (Summary Of Dividends Paid On Common Stock) (Details) - USD ($) $ / shares in Units, $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2025 | Jun. 30, 2025 | Mar. 31, 2025 | Sep. 30, 2024 | Jun. 30, 2024 | Mar. 31, 2024 | Sep. 30, 2025 | Sep. 30, 2024 | [1]
Stockholders Equity [Line Items] |  |  |  |  |  |  |  |
Dividends |  |  |  |  |  |  | $ 470 | $ 794
Rate Per Share | $ 0.24 | $ 0.24 | $ 0.24 | $ 0.44 | $ 0.35 | $ 0.44 |  |
Variable Dividend Date March 31, 2024 |  |  |  |  |  |  |  |
Stockholders Equity [Line Items] |  |  |  |  |  |  |  |
Dividends |  |  |  |  |  | $ 299 |  |
Variable Dividend Date June 30, 2024 |  |  |  |  |  |  |  |
Stockholders Equity [Line Items] |  |  |  |  |  |  |  |
Dividends |  |  |  |  | $ 223 |  |  |
Variable Dividend Date September 30, 2024 |  |  |  |  |  |  |  |
Stockholders Equity [Line Items] |  |  |  |  |  |  |  |
Dividends |  |  |  | $ 272 |  |  |  |
Fixed Dividends Year To Date March 31, 2025 |  |  |  |  |  |  |  |
Stockholders Equity [Line Items] |  |  |  |  |  |  |  |
Dividends |  |  | $ 163 |  |  |  |  |
Fixed Dividends Year To Date June 30, 2025 [Member] |  |  |  |  |  |  |  |
Stockholders Equity [Line Items] |  |  |  |  |  |  |  |
Dividends |  | $ 156 |  |  |  |  |  |
Fixed Dividends Year To Date September 30, 2025 [Member] |  |  |  |  |  |  |  |
Stockholders Equity [Line Items] |  |  |  |  |  |  |  |
Dividends | $ 151 |  |  |  |  |  |  |
[1] | During the first nine months of 2024, Devon paid variable dividends totaling $377 million in addition to its recurring fixed dividend.

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- Definition Aggregate dividends paid during the period for each share of common stock outstanding. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 505 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480008/505-10-S99-1 + Details
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- Definition Cash outflow in the form of capital distributions and dividends to common shareholders, preferred shareholders and noncontrolling interests. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 230 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 15 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482740/230-10-45-15 + Details
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