2.2.0.25falsefalse1130 - Disclosure - Goodwill and Other Intangible Assetstruefalsefalse1falsefalseUSDfalsefalse1/1/2010 - 12/31/2010 USD ($) / shares USD ($) $FROM_Jan01_2010_TO_Dec31_2010http://www.sec.gov/CIK0000773910duration2010-01-01T00:00:002010-12-31T00:00:00usdPerShrDividehttp://www.xbrl.org/2003/iso4217USDiso4217http://www.xbrl.org/2003/instancesharesxbrli0USDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170PureStandardhttp://www.xbrl.org/2003/instancepurexbrli0SharesStandardhttp://www.xbrl.org/2003/instancesharesxbrli0MMboeStandardhttp://www.anadarko.com/20101231MMboeapc0USDUSD$5false0us-gaap_GoodwillAndIntangibleAssetsDisclosureTextBlockus-gaaptruenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse006.  Goodwill and Other Intangible Assets Goodwill   The Company tests goodwill for impairment annually at October 1, or more often as facts and circumstances warrant. The first step in the goodwill impairment test is to compare the fair value of each reporting unit to which goodwill has been assigned to the carrying amount of net assets, including goodwill, of the respective reporting unit. Anadarko has allocated goodwill to three reporting units: oil and gas exploration and production; gathering and processing; and transportation. During the second quarter of 2010, a decline in the fair value of Anadarko's oil and gas exploration and production reporting unit was indicated as a result of the Deepwater Horizon events and general uncertainty arising in connection with uncertain regulatory impacts associated with drilling in the deepwater Gulf of Mexico. See Note 2 and Note 15. The Company completed an interim goodwill impairment test of the oil and gas exploration and production reporting unit as of June 30, 2010, and the results of the test indicated no impairment.        At December 31, 2010, the Company had $5.3 billion of goodwill allocated to its three reporting units: $5.2 billion to oil and gas exploration and production; $134 million to gathering and processing; and $5 million to transportation. The Company completed its annual impairment assessment of goodwill during the fourth quarter of 2010, and the results of the test indicated no impairment.        Uncertainty related to the Deepwater Horizon events, difficulty or potential delays in obtaining drilling permits, significant declines in commodity prices, or other unanticipated events could result in further goodwill impairment tests in the near term, the results of which may have a material adverse impact on the Company's results of operations. Other Intangible Assets   Intangible assets subject to amortization at December 31, 2010 and 2009 and associated amortization expense for the years then ended are as follows:<div><table style="border-collapse:collapse;margin-top:20px;"><tr style="height: 1px"><td style="width: 198px; text-align:left;border-color:#000000;min-width:198px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 101px; text-align:left;border-color:#000000;min-width:101px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 101px; text-align:left;border-color:#000000;min-width:101px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 101px; text-align:left;border-color:#000000;min-width:101px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 101px; text-align:left;border-color:#000000;min-width:101px;"> </td></tr><tr style="height: 18px"><td style="width: 198px; text-align:left;border-color:#000000;min-width:198px;"> </td><td colspan="2" style="width: 111px; text-align:center;border-color:#000000;min-width:111px;">Gross Carrying</td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td colspan="2" style="width: 111px; text-align:center;border-color:#000000;min-width:111px;">Accumulated</td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td colspan="2" style="width: 111px; text-align:center;border-color:#000000;min-width:111px;">Net Carrying</td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td colspan="2" style="width: 111px; text-align:center;border-color:#000000;min-width:111px;">Amortization</td></tr><tr style="height: 18px"><td style="width: 198px; text-align:left;border-color:#000000;min-width:198px;">millions</td><td colspan="2" style="width: 111px; border-bottom-style:solid;border-bottom-width:1px;text-align:center;border-color:#000000;min-width:111px;">Amount</td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td colspan="2" style="width: 111px; border-bottom-style:solid;border-bottom-width:1px;text-align:center;border-color:#000000;min-width:111px;">Amortization</td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td colspan="2" style="width: 111px; border-bottom-style:solid;border-bottom-width:1px;text-align:center;border-color:#000000;min-width:111px;">Amount</td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td colspan="2" style="width: 111px; border-bottom-style:solid;border-bottom-width:1px;text-align:center;border-color:#000000;min-width:111px;">Expense</td></tr><tr style="height: 18px"><td style="width: 198px; text-align:left;border-color:#000000;min-width:198px;">December 31, 2010</td><td style="width: 10px; border-top-style:solid;border-top-width:1px;text-align:center;border-color:#000000;min-width:10px;"> </td><td style="width: 101px; border-top-style:solid;border-top-width:1px;text-align:right;border-color:#000000;min-width:101px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 10px; border-top-style:solid;border-top-width:1px;text-align:center;border-color:#000000;min-width:10px;"> </td><td style="width: 101px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:101px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 10px; border-top-style:solid;border-top-width:1px;text-align:center;border-color:#000000;min-width:10px;"> </td><td style="width: 101px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:101px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 10px; border-top-style:solid;border-top-width:1px;text-align:center;border-color:#000000;min-width:10px;"> </td><td style="width: 101px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:101px;"> </td></tr><tr style="height: 18px"><td style="width: 198px; text-align:left;border-color:#000000;min-width:198px;">Offshore platform leases</td><td style="width: 10px; border-bottom-style:solid;border-bottom-width:1px;text-align:center;border-color:#000000;min-width:10px;">$</td><td style="width: 101px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:101px;">60</td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 10px; border-bottom-style:solid;border-bottom-width:1px;text-align:center;border-color:#000000;min-width:10px;">$</td><td style="width: 101px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:101px;">(31)</td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 10px; border-bottom-style:solid;border-bottom-width:1px;text-align:center;border-color:#000000;min-width:10px;">$</td><td style="width: 101px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:101px;">29</td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 10px; border-bottom-style:solid;border-bottom-width:1px;text-align:center;border-color:#000000;min-width:10px;">$</td><td style="width: 101px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:101px;">3</td></tr><tr style="height: 18px"><td style="width: 198px; text-align:left;border-color:#000000;min-width:198px;"> </td><td style="width: 10px; border-top-style:solid;border-top-width:1px;border-bottom-style:solid;border-bottom-width:1px;text-align:center;border-color:#000000;min-width:10px;">$</td><td style="width: 101px; border-top-style:solid;border-top-width:1px;border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:101px;">60</td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 10px; border-top-style:solid;border-top-width:1px;border-bottom-style:solid;border-bottom-width:1px;text-align:center;border-color:#000000;min-width:10px;">$</td><td style="width: 101px; border-top-style:solid;border-top-width:1px;border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:101px;">(31)</td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 10px; border-top-style:solid;border-top-width:1px;border-bottom-style:solid;border-bottom-width:1px;text-align:center;border-color:#000000;min-width:10px;">$</td><td style="width: 101px; border-top-style:solid;border-top-width:1px;border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:101px;">29</td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 10px; border-top-style:solid;border-top-width:1px;border-bottom-style:solid;border-bottom-width:1px;text-align:center;border-color:#000000;min-width:10px;">$</td><td style="width: 101px; border-top-style:solid;border-top-width:1px;border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:101px;">3</td></tr><tr style="height: 11px"><td style="width: 198px; text-align:left;border-color:#000000;min-width:198px;"> </td><td style="width: 10px; border-top-style:solid;border-top-width:1px;text-align:center;border-color:#000000;min-width:10px;"> </td><td style="width: 101px; border-top-style:solid;border-top-width:1px;text-align:right;border-color:#000000;min-width:101px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 10px; border-top-style:solid;border-top-width:1px;text-align:center;border-color:#000000;min-width:10px;"> </td><td style="width: 101px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:101px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 10px; border-top-style:solid;border-top-width:1px;text-align:center;border-color:#000000;min-width:10px;"> </td><td style="width: 101px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:101px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 10px; border-top-style:solid;border-top-width:1px;text-align:center;border-color:#000000;min-width:10px;"> </td><td style="width: 101px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:101px;"> </td></tr><tr style="height: 9px"><td style="width: 198px; text-align:left;border-color:#000000;min-width:198px;"> </td><td style="width: 10px; text-align:center;border-color:#000000;min-width:10px;"> </td><td style="width: 101px; text-align:right;border-color:#000000;min-width:101px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 10px; text-align:center;border-color:#000000;min-width:10px;"> </td><td style="width: 101px; text-align:left;border-color:#000000;min-width:101px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 10px; text-align:center;border-color:#000000;min-width:10px;"> </td><td style="width: 101px; text-align:left;border-color:#000000;min-width:101px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 10px; text-align:center;border-color:#000000;min-width:10px;"> </td><td style="width: 101px; text-align:left;border-color:#000000;min-width:101px;"> </td></tr><tr style="height: 18px"><td style="width: 198px; text-align:left;border-color:#000000;min-width:198px;">December 31, 2009</td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 101px; text-align:right;border-color:#000000;min-width:101px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 101px; text-align:left;border-color:#000000;min-width:101px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 101px; text-align:left;border-color:#000000;min-width:101px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 101px; text-align:left;border-color:#000000;min-width:101px;"> </td></tr><tr style="height: 18px"><td style="width: 198px; text-align:left;border-color:#000000;min-width:198px;">Drilling contracts</td><td style="width: 10px; text-align:center;border-color:#000000;min-width:10px;">$</td><td style="width: 101px; text-align:right;border-color:#000000;min-width:101px;">155</td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 10px; text-align:center;border-color:#000000;min-width:10px;">$</td><td style="width: 101px; text-align:right;border-color:#000000;min-width:101px;">(155)</td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 10px; text-align:center;border-color:#000000;min-width:10px;">$</td><td style="width: 101px; text-align:right;border-color:#000000;min-width:101px;">—</td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 10px; text-align:center;border-color:#000000;min-width:10px;">$</td><td style="width: 101px; text-align:right;border-color:#000000;min-width:101px;">2</td></tr><tr style="height: 18px"><td style="width: 198px; text-align:left;border-color:#000000;min-width:198px;">Transportation contracts(1)</td><td style="width: 10px; text-align:center;border-color:#000000;min-width:10px;"> </td><td style="width: 101px; text-align:right;border-color:#000000;min-width:101px;">171</td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 10px; text-align:center;border-color:#000000;min-width:10px;"> </td><td style="width: 101px; text-align:right;border-color:#000000;min-width:101px;">(163)</td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 10px; text-align:center;border-color:#000000;min-width:10px;"> </td><td style="width: 101px; text-align:right;border-color:#000000;min-width:101px;">8</td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 10px; text-align:center;border-color:#000000;min-width:10px;"> </td><td style="width: 101px; text-align:right;border-color:#000000;min-width:101px;">13</td></tr><tr style="height: 18px"><td style="width: 198px; text-align:left;border-color:#000000;min-width:198px;">Offshore platform leases</td><td style="width: 10px; border-bottom-style:solid;border-bottom-width:1px;text-align:center;border-color:#000000;min-width:10px;"> </td><td style="width: 101px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:101px;">60</td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 10px; border-bottom-style:solid;border-bottom-width:1px;text-align:center;border-color:#000000;min-width:10px;"> </td><td style="width: 101px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:101px;">(28)</td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 10px; border-bottom-style:solid;border-bottom-width:1px;text-align:center;border-color:#000000;min-width:10px;"> </td><td style="width: 101px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:101px;">32</td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 10px; border-bottom-style:solid;border-bottom-width:1px;text-align:center;border-color:#000000;min-width:10px;"> </td><td style="width: 101px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:101px;">2</td></tr><tr style="height: 18px"><td style="width: 198px; text-align:left;border-color:#000000;min-width:198px;"> </td><td style="width: 10px; border-top-style:solid;border-top-width:1px;border-bottom-style:solid;border-bottom-width:1px;text-align:center;border-color:#000000;min-width:10px;">$</td><td style="width: 101px; border-top-style:solid;border-top-width:1px;border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:101px;">386</td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 10px; border-top-style:solid;border-top-width:1px;border-bottom-style:solid;border-bottom-width:1px;text-align:center;border-color:#000000;min-width:10px;">$</td><td style="width: 101px; border-top-style:solid;border-top-width:1px;border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:101px;">(346)</td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 10px; border-top-style:solid;border-top-width:1px;border-bottom-style:solid;border-bottom-width:1px;text-align:center;border-color:#000000;min-width:10px;">$</td><td style="width: 101px; border-top-style:solid;border-top-width:1px;border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:101px;">40</td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 10px; border-top-style:solid;border-top-width:1px;border-bottom-style:solid;border-bottom-width:1px;text-align:center;border-color:#000000;min-width:10px;">$</td><td style="width: 101px; border-top-style:solid;border-top-width:1px;border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:101px;">17</td></tr><tr style="height: 1px"><td style="width: 198px; text-align:left;border-color:#000000;min-width:198px;"> </td><td style="width: 10px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 101px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:101px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 10px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 101px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:101px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 10px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 101px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:101px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 10px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 101px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:101px;"> </td></tr></table></div>___________________________________________________ (1) The carrying value of the transportation contracts was reduced to zero in 2010.        Drilling contract and offshore platform lease intangible assets are included in the Company's oil and gas exploration and production operating segment. Amortization of drilling contract intangibles is reflected in oil and gas properties as exploratory and development drilling costs, which are ultimately expensed through depletion or exploration expense. Drilling contract intangible value was fully amortized in 2009.        The Company recognized impairments related to certain transportation contracts included in intangible assets of $8 million and $74 million for 2010 and 2009, respectively, due to changes in price differentials at specific locations. These assets, included in the marketing operating segment, were impaired to fair value, determined using a discounted cash flow model incorporating market-based inputs representative of Level 2 inputs.6.  Goodwill and Other Intangible Assets Goodwill   The Company tests goodwill for impairment annually at October 1, or morefalsefalsefalsefalsefalseOtherus-types:textBlockItemTypestringDiscloses the aggregate amount of goodwill and a description of intangible assets, which may include (a) for amortizable intangible assets (also referred to as finite-lived intangible assets), the carrying amount, the amount of any significant residual value, and the weighted-average amortization period, (b) for intangible assets not subject to amortization (also referred to as indefinite-lived intangible assets), the carrying amount, and (c) the amount of research and development assets acquired and written off in the period, including the line item in the income statement in which the amounts written off are aggregated, if not readily apparent from the income statement. Also discloses (a) for amortizable intangibles assets in total and by major class, the gross carrying amount and accumulated amortization, the total amortization expense for the period, and the estimated aggregate amortization expense for each of the five succeeding fiscal years, (b) for intangible assets not subject to amortization the carrying amount in total and by major class, and (c) for goodwill, in total and for each reportable segment, the changes in the carrying amount of goodwill during the period (including the aggregate amount of goodwill acquired, the aggregate amount of impairment losses recognized, and the amount of goodwill included in the gain or loss on disposal of a reporting unit). If any part of goodwill has not been allocated to a reportable segment, discloses the unallocated amount and the reasons for not allocating. For each impairment loss recognized related to an intangible asset (excluding goodwill), discloses: (a) a description of the impaired intangible asset and the facts and circumstances leading to the impairment, (b) the amount of the impairment loss and the method for determining fair value, (c) the caption in the income statement or the statement of activities in which the impairment loss is aggregated, and (d) the segment in which the impaired intangible asset is reported. For each goodwill impairment loss recognized, discloses: (a) a description of the facts and circumstances leading to the impairment, (b) the amount of the impairment loss and the method of determining the fair value of the associated reporting unit, and (c) if a recognized impairment loss is an estimate not finalized and the reasons why the estimate is not final. May also disclose the nature and amount of any significant adjustments made to a previous estimate of an impairment loss. This element may be used as a single block of text to include the entire intangible asset disclosure including data and tables.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 142 -Paragraph 42, 43, 44, 45, 46, 47 falsefalseGoodwill And Other Intangible Assets11Goodwill and Other Intangible AssetsUnKnownUnKnownUnKnownUnKnownfalsetrue