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Segment Information | 12 Months Ended
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Dec. 31, 2011
Segment Information [Abstract] |
Segment Information | 21. Segment Information Devon manages its operations through distinct operating segments, or divisions, which are defined primarily by geographic areas. For financial reporting purposes, Devon aggregates its U.S. divisions into one reporting segment due to the similar nature of the businesses. However, Devon's Canadian division is reported as a separate reporting segment primarily due to the significant differences in the regulatory environment. Devon's segments are all primarily engaged in oil and gas producing activities, and certain information regarding such activities for each segment is included in Note 22. Following is certain financial information regarding Devon's segments. Revenues are all from external customers.
| U.S. | Canada | Total
| (In millions)
Year Ended December 31, 2011: |
Oil, gas and NGL sales | $ 5,418 | $ 2,897 | $ 8,315
Oil, gas and NGL derivatives | $ 881 | $ — | $ 881
Marketing and midstream revenues | $ 2,059 | $ 199 | $ 2,258
Interest expense | $ 204 | $ 148 | $ 352
Depreciation, depletion and amortization | $ 1,439 | $ 809 | $ 2,248
Earnings from continuing operations before income taxes | $ 3,477 | $ 813 | $ 4,290
Income tax expense | $ 1,958 | $ 198 | $ 2,156
Earnings from continuing operations | $ 1,519 | $ 615 | $ 2,134
Property and equipment, net | $ 16,989 | $ 7,785 | $ 24,774
Total continuing assets (1) | $ 22,622 | $ 18,342 | $ 40,964
Capital expenditures | $ 6,112 | $ 1,708 | $ 7,820
Year Ended December 31, 2010: |  |  |
Oil, gas and NGL sales | $ 4,742 | $ 2,520 | $ 7,262
Oil, gas and NGL derivatives | $ 809 | $ 2 | $ 811
Marketing and midstream revenues | $ 1,742 | $ 125 | $ 1,867
Interest expense | $ 159 | $ 204 | $ 363
Depreciation, depletion and amortization | $ 1,229 | $ 701 | $ 1,930
Earnings from continuing operations before income taxes | $ 2,943 | $ 625 | $ 3,568
Income tax expense | $ 1,062 | $ 173 | $ 1,235
Earnings from continuing operations | $ 1,881 | $ 452 | $ 2,333
Property and equipment, net | $ 12,379 | $ 7,273 | $ 19,652
Total continuing assets (1) | $ 18,320 | $ 13,185 | $ 31,505
Capital expenditures | $ 5,007 | $ 2,107 | $ 7,114
Year Ended December 31, 2009: |  |  |
Oil, gas and NGL sales | $ 3,958 | $ 2,139 | $ 6,097
Oil, gas and NGL derivatives | $ 382 | $ 2 | $ 384
Marketing and midstream revenues | $ 1,498 | $ 36 | $ 1,534
Interest expense | $ 125 | $ 224 | $ 349
Depreciation, depletion and amortization | $ 1,498 | $ 610 | $ 2,108
(Loss) earnings from continuing operations before income taxes | $ (4,961) | $ 435 | $ (4,526)
Income tax (benefit) expense | $ (1,894) | $ 121 | $ (1,773)
(Loss) earnings from continuing operations | $ (3,067) | $ 314 | $ (2,753)
Reduction of carrying value of oil and gas properties | $ 6,408 | $ — | $ 6,408
Capital expenditures | $ 3,584 | $ 1,099 | $ 4,683
____________________________ (1) Total assets in the table above do not include assets held for sale related to Devon's discontinued operations, which totaled $153 million, $1.4 billion, and $1.9 billion in 2011, 2010 and 2009, respectively.

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- Definition The entire disclosure for reporting segments including data and tables. Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8595-108599 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8538-108599 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 33 -URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8971-108599 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 34 -URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8981-108599 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 29 -URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8864-108599 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8380-108599 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 35 -URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8984-108599 Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 41 -URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e9038-108599 Reference 9: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 32 -URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8933-108599 Reference 10: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 131 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 11: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 30 -URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8906-108599 Reference 12: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 26 -URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8844-108599 Reference 13: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 40 -URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e9031-108599 Reference 14: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 42 -URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e9054-108599 Reference 15: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 31 -URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8924-108599 + Details
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