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Net Earnings (Loss) Per Share Attributable To Devon (Earnings Per Share Computations) (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2015 | Sep. 30, 2014 | Sep. 30, 2015 | Sep. 30, 2014
Net earnings (loss): |  |  |  |  |
Net earnings (loss) attributable to Devon |  | $ (3,507) | $ 1,016 | $ (9,922) | $ 2,015
Attributable to participating securities |  | (1) | (11) | (3) | (20)
Basic and diluted earnings (loss) |  | $ (3,508) | $ 1,005 | $ (9,925) | $ 1,995
Common shares: |  |  |  |  |
Common shares outstanding - total |  | 411 | 409 | 411 | 408
Attributable to participating securities |  | (5) | (4) | (5) | (4)
Common shares outstanding - basic |  | 406 | 405 | 406 | 404
Dilutive effect of potential common shares issuable |  |  | 2 |  | 2
Common shares outstanding - diluted |  | 406 | 407 | 406 | 406
Net earnings (loss) per share attributable to Devon: |  |  |  |  |
Basic |  | $ (8.64) | $ 2.48 | $ (24.45) | $ 4.94
Diluted |  | $ (8.64) | $ 2.47 | $ (24.45) | $ 4.91
Antidilutive options | [1] | 4 | 1 | 4 | 3
[1] | Amounts represent options to purchase shares of Devon's common stock that are excluded from the diluted net earnings per share calculations because the options are antidilutive.

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- Definition Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Antidilution -URI http://asc.fasb.org/extlink&oid=6505113 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Diluted Earnings Per Share -URI http://asc.fasb.org/extlink&oid=6510752 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Contingent Stock Agreement -URI http://asc.fasb.org/extlink&oid=6508534 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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