2.2.0.25falsefalse0401 - Disclosure - Summary of significant accounting policies (Policies)truefalsefalse1falsefalseUSDfalsefalse1/1/2011 - 3/31/2011 USD ($) USD ($) / shares $Jan-01-2011_Mar-31-2011http://www.sec.gov/CIK0000318154duration2011-01-01T00:00:002011-03-31T00:00:00USDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170SharesStandardhttp://www.xbrl.org/2003/instancesharesxbrli0USDEPSDividehttp://www.xbrl.org/2003/iso4217USDiso4217http://www.xbrl.org/2003/instancesharesxbrli0PureStandardhttp://www.xbrl.org/2003/instancepurexbrli0USDUSD$2true0amgn_SummaryOfSignificantAccountingPoliciesPoliciesAbstractamgnfalsenadurationSummary of significant accounting policies.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsefalsefalseOtherxbrli:stringItemTypestringSummary of significant accounting policies.falsefalse3false0us-gaap_NatureOfOperationsus-gaaptruenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1falsefalsefalse00<!--DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd" --> <!-- Begin Block Tagged Accounting Policy: AMGN-20110331_note1_accounting_policy_table1 - us-gaap:NatureOfOperations--> <div align="left" style="font-size: 10pt; font-family: 'Times New Roman',Times,serif"> <div align="left" style="font-size: 10pt; margin-top: 10pt"><i>Business</i> </div> <div align="justify" style="font-size: 10pt; margin-top: 10pt; text-indent:8%">Amgen Inc. (including its subsidiaries, referred to as &#8220;Amgen,&#8221; &#8220;the Company,&#8221; &#8220;we,&#8221; &#8220;our&#8221; or &#8220;us&#8221;) is a global biotechnology medicines company that discovers, develops, manufactures and markets medicines for grievous illnesses. We concentrate on innovating novel medicines based on advances in cellular and molecular biology and we operate in one business segment, human therapeutics. </div> </div> <!--DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd" --> <!-- Begin Block TaggedfalsefalsefalsefalsefalseOtherus-types:textBlockItemTypestringDescribes the nature of an entity's business, the major products or services it sells or provides and its principal markets, including the locations of those markets. If the entity operates in more than one business, the disclosure also indicates the relative importance of its operations in each business and the basis for the determination (for example, assets, revenues, or earnings). Disclosures about the nature of operations need not be quantified; relative importance could be conveyed by use of terms such as "predominately", "about equally", or "major and other". This element is also referred to as "Business Description".Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Statement of Position (SOP) -Number 94-6 -Paragraph 10 falsefalse4false0amgn_BasisOfPresentationPolicyTextBlockamgnfalsenadurationShows the basis of presentation of financial information for interim periods.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1falsefalsefalse00<!--DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd" --> <!-- Begin Block Tagged Accounting Policy: AMGN-20110331_note1_accounting_policy_table2 - amgn:BasisOfPresentationPolicyTextBlock--> <div align="justify" style="font-size: 10pt; font-family: 'Times New Roman',Times,serif"> <div align="left" style="font-size: 10pt; margin-top: 10pt"><i>Basis of presentation</i> </div> <div align="justify" style="font-size: 10pt; margin-top: 10pt; text-indent:8%">The financial information for the three months ended March&#160;31, 2011 and 2010 is unaudited but includes all adjustments (consisting of only normal recurring adjustments, unless otherwise indicated), which Amgen considers necessary for a fair presentation of its condensed consolidated results of operations for those periods. Interim results are not necessarily indicative of results for the full fiscal year. </div> <div align="justify" style="font-size: 10pt; margin-top: 10pt; text-indent:8%">The condensed consolidated financial statements should be read in conjunction with our consolidated financial statements and the notes thereto contained in our Annual Report on Form 10-K for the year ended December&#160;31, 2010. </div> </div> <!--DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd" --> <!-- Begin Block TaggedfalsefalsefalsefalsefalseOtherus-types:textBlockItemTypestringShows the basis of presentation of financial information for interim periods.No authoritative reference available.falsefalse5false0us-gaap_ConsolidationPolicyTextBlockus-gaaptruenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1falsefalsefalse00<!--DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd" --> <!-- Begin Block Tagged Accounting Policy: AMGN-20110331_note1_accounting_policy_table3 - us-gaap:ConsolidationPolicyTextBlock--> <div align="justify" style="font-size: 10pt; font-family: 'Times New Roman',Times,serif"> <div align="left" style="font-size: 10pt; margin-top: 10pt"><i>Principles of consolidation</i> </div> <div align="justify" style="font-size: 10pt; margin-top: 10pt; text-indent:8%">The condensed consolidated financial statements include the accounts of Amgen as well as its wholly owned subsidiaries. We do not have any significant interests in any variable interest entities. All material intercompany transactions and balances have been eliminated in consolidation. </div> </div> <!--DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd" --> <!-- Begin Block TaggedfalsefalsefalsefalsefalseOtherus-types:textBlockItemTypestringDescribes an entity's accounting policy regarding (1) the principles it follows in consolidating or combining the separate financial statements, including the principles followed in determining the inclusion or exclusion of subsidiaries or other entities in the consolidated or combined financial statements and (2) its treatment of interests (for example common stock, a partnership interest or other means of exerting influence) in other entities, for example consolidation or use of the equity or cost methods of accounting. An entity also may describe its accounting treatment for intercompany accounts and transactions, noncontrolling interest, and the income statement treatment in consolidation for issuances of stock by a subsidiary.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name FASB Interpretation (FIN) -Number 46R -Paragraph 4 -Subparagraph c Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph k -Article 1 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Principles Board Opinion (APB) -Number 18 -Paragraph 5, 6, 16-19 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02, 03 -Article 3A Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 2-6 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 140 -Paragraph 46 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Principles Board Opinion (APB) -Number 18 -Paragraph 20 -Subparagraph a(2) Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name FASB Interpretation (FIN) -Number 46R -Paragraph 4 -Subparagraph d Reference 9: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Emerging Issues Task Force (EITF) -Number 97-2 Reference 10: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Emerging Issues Task Force (EITF) -Number 96-16 Reference 11: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name FASB Interpretation (FIN) -Number 46R -Paragraph 14, 15 falsefalse6false0amgn_UseOfEstimatesPolicyTextBlockamgnfalsenadurationDisclosure of accounting policy for the use of estimates in the preparation of financial statements in conformity with...falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1falsefalsefalse00<!--DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd" --> <!-- Begin Block Tagged Accounting Policy: AMGN-20110331_note1_accounting_policy_table4 - amgn:UseOfEstimatesPolicyTextBlock--> <div align="justify" style="font-size: 10pt; font-family: 'Times New Roman',Times,serif"> <div align="left" style="font-size: 10pt; margin-top: 10pt"><i>Use of estimates</i> </div> <div align="justify" style="font-size: 10pt; margin-top: 10pt; text-indent:8%">The preparation of condensed consolidated financial statements in conformity with accounting principles generally accepted in the United States (GAAP)&#160;requires management to make estimates and assumptions that affect the amounts reported in the condensed consolidated financial statements and accompanying notes. Actual results may differ from those estimates. </div> </div> <!--DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd" --> <!-- Begin Block TaggedfalsefalsefalsefalsefalseOtherus-types:textBlockItemTypestringDisclosure of accounting policy for the use of estimates in the preparation of financial statements in conformity with generally accepted accounting principles.No authoritative reference available.falsefalse7false0amgn_MultipleElementArrangementRevenueRecognitionPolicyTextBlockamgnfalsenadurationDescribes an entity's accounting policy for multiple element arrangements (for example, delivery of multiple products,...falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1falsefalsefalse00<!--DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd" --> <!-- Begin Block Tagged Accounting Policy: AMGN-20110331_note1_accounting_policy_table5 - amgn:MultipleElementArrangementRevenueRecognitionPolicyTextBlock--> <div align="justify" style="font-size: 10pt; font-family: 'Times New Roman',Times,serif"> <div align="left" style="font-size: 10pt; margin-top: 10pt"><i>Revenue recognition for arrangements with multiple-deliverables</i> </div> <div align="justify" style="font-size: 10pt; margin-top: 10pt; text-indent:8%">From time to time, we enter into arrangements for the research and development (R&#038;D), manufacture and/or commercialization of products and product candidates. These arrangements may require us to deliver various rights, services and/or goods across the entire life cycle of a product or product candidate, including (i)&#160;intellectual property rights/license, (ii)&#160;R&#038;D services, (iii)&#160;manufacturing services and/or (iv)&#160;commercialization services. The underlying terms of these arrangements generally provide for consideration to Amgen in the form of non-refundable upfront license payments, R&#038;D and commercial performance milestone payments, cost sharing and/or royalty payments. </div> <div align="justify" style="font-size: 10pt; margin-top: 10pt; text-indent:8%">In October&#160;2009, the Financial Accounting Standards Board issued a new accounting standard which amends the guidance on the accounting for arrangements involving the delivery of more than one element. This standard addresses the determination of the unit(s) of accounting for multiple-element arrangements and how the arrangement&#8217;s consideration should be allocated to each unit of accounting. The Company adopted this new accounting standard on a prospective basis for all multiple-element arrangements entered into on or after January&#160;1, 2011 and for any multiple-element arrangements that were entered into prior to January&#160;1, 2011 but materially modified on or after January&#160;1, 2011. </div> <div align="justify" style="font-size: 10pt; margin-top: 10pt; text-indent:8%">Pursuant to the new standard, each required deliverable is evaluated to determine if it qualifies as a separate unit of accounting. For Amgen this determination is generally based on whether the deliverable has &#8220;stand-alone value&#8221; to the customer. The arrangement&#8217;s consideration is then allocated to each separate unit of accounting based on the relative selling price of each deliverable. The estimated selling price of each deliverable is determined using the following hierarchy of values: (i)&#160;vendor-specific objective evidence of fair value, (ii)&#160;third-party evidence of selling price, and (iii)&#160;best estimate of selling price (BESP). The BESP reflects our best estimate of what the selling price would be if the deliverable was regularly sold by us on a stand-alone basis. We expect, in general, to use the BESP for allocating consideration to each deliverable. In general, the consideration allocated to each unit of accounting is then recognized as the related goods or services are delivered limited to the consideration that is not contingent upon future deliverables. </div> <div align="justify" style="font-size: 10pt; margin-top: 10pt; text-indent:8%">For multiple-element arrangements entered into prior to January&#160;1, 2011 and not materially modified thereafter, we continue to apply our prior accounting policy with respect to such arrangements. Under this policy, in general, revenue from non-refundable, upfront fees related to intellectual property rights/licenses where we have continuing involvement is recognized ratably over the estimated period of ongoing involvement because there is no objective and reliable evidence of fair value for any undelivered item to allow the delivered item to be considered a separate unit of accounting. This requirement with respect to the fair value of undelivered items was eliminated in the newly issued accounting standard. In general, the consideration with respect to the other deliverables is recognized when the goods or services are delivered. </div> <div align="justify" style="font-size: 10pt; margin-top: 10pt; text-indent:8%">Under all of our multiple-element arrangements, consideration associated with at risk substantive performance milestones is recognized as revenue upon the achievement of the related milestone, as defined in the respective agreements. </div> <div align="justify" style="font-size: 10pt; margin-top: 10pt; text-indent:8%">The impact of adopting this new accounting standard is dependent on the terms and conditions of any future arrangement that we may enter into that includes multiple-deliverables, however, its adoption is not expected to have a material impact on our consolidated results of operations or financial position. The primary impact of adopting the new accounting standard is expected to be the earlier recognition of revenue associated with delivering rights to the underlying intellectual property. </div> <div align="justify" style="font-size: 10pt; margin-top: 10pt; text-indent:8%">The adoption of this accounting standard did not have a material impact on our condensed consolidated results of operations or financial position for the three months ended March&#160;31, 2011. Our consolidated results of operations or financial position for 2010 also would not have been materially impacted if the accounting standard had been adopted on January&#160;1, 2010. </div> </div> <!--DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd" --> <!-- Begin Block TaggedfalsefalsefalsefalsefalseOtherus-types:textBlockItemTypestringDescribes an entity's accounting policy for multiple element arrangements (for example, delivery of multiple products, services or the rights to use assets).The disclosure may indicate the accounting policy for each unit of accounting as well as how units of accounting are determined and valued. The disclosure may encompass important judgment as to appropriateness of principles related to recognition of revenue. The disclosure also may indicate the entity's treatment of any unearned or deferred revenue that arises from the transaction.No authoritative reference available.falsefalse8false0us-gaap_InventoryPolicyTextBlockus-gaaptruenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1falsefalsefalse00<!--DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd" --> <!-- Begin Block Tagged Accounting Policy: AMGN-20110331_note1_accounting_policy_table6 - us-gaap:InventoryPolicyTextBlock--> <div align="justify" style="font-size: 10pt; font-family: 'Times New Roman',Times,serif"> <div align="left" style="font-size: 10pt; margin-top: 10pt"><i>Inventories</i> </div> <div align="justify" style="font-size: 10pt; margin-top: 10pt; text-indent:8%">Inventories are stated at the lower of cost or market. Cost, which includes amounts related to materials, labor and overhead, is determined in a manner which approximates the first-in, first-out method. Cost also includes the impact of the recently enacted Puerto Rico excise tax related to our manufacturing operations in Puerto Rico. The Company capitalizes inventories produced in preparation for product launches when the related product candidates are considered to have a high probability of regulatory approval and the related costs are expected to be recoverable through the commercialization of the product. See Note 7, Inventories. </div> </div> <!--DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd" --> <!-- Begin Block TaggedfalsefalsefalsefalsefalseOtherus-types:textBlockItemTypestringDescribes an entity's accounting policies covering its major classes of inventories, bases of stating inventories (for example lower of cost or market), methods by which amounts are added and removed from inventory classes (for example FIFO, LIFO, or average cost), loss recognition on impairment of inventories, and situations in which inventories are stated above cost. If inventory is carried at cost, this description includes the nature of the cost elements included in inventory.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Financial Reporting Release (FRR) -Number 206 -Chapter 2 -Paragraph b -Subparagraph i, ii Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 43 -Chapter 4 -Paragraph 3, 5-10, 15, 16, 17 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 6 -Subparagraph a -Article 5 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 43 -Chapter 3 -Section A -Paragraph 9 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Statement of Position (SOP) -Number 81-1 -Paragraph 69-75 falsefalse9false0us-gaap_PropertyPlantAndEquipmentPolicyTextBlockus-gaaptruenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1falsefalsefalse00<!--DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd" --> <!-- Begin Block Tagged Accounting Policy: AMGN-20110331_note1_accounting_policy_table7 - us-gaap:PropertyPlantAndEquipmentPolicyTextBlock--> <div align="justify" style="font-size: 10pt; font-family: 'Times New Roman',Times,serif"> <div align="left" style="font-size: 10pt; margin-top: 10pt"><i>Property, plant and equipment, net</i> </div> <div align="justify" style="font-size: 10pt; margin-top: 10pt; text-indent:8%">Property, plant and equipment is recorded at historical cost, net of accumulated depreciation and amortization of $5.3&#160;billion and $5.2&#160;billion as of March&#160;31, 2011 and December&#160;31, 2010, respectively. </div> </div> <!--DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd" --> <!-- Begin Block TaggedfalsefalsefalsefalsefalseOtherus-types:textBlockItemTypestringDescribes an entity's accounting policy for property, plant and equipment which may include the basis of such assets, depreciation methods used and estimated useful lives, the entity's capitalization policy, including its accounting treatment for costs incurred for repairs and maintenance activities, whether such asset balances include capitalized interest and the method by which such is calculated, how disposals of such assets are accounted for and how impairment of such assets is assessed and recognized.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 43 -Chapter 9 -Section C -Paragraph 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 144 -Paragraph 7 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Principles Board Opinion (APB) -Number 22 -Paragraph 12, 13 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 34 -Paragraph 8, 9 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 13 -Subparagraph a -Article 5 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Principles Board Opinion (APB) -Number 12 -Paragraph 5 -Subparagraph d falsefalse10false0amgn_BusinessCombinationsPolicyTextBlockamgnfalsenadurationDescribes the accounting policy to record business combinations which may include a description of the method of accounting,...falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1falsefalsefalse00<!--DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd" --> <!-- Begin Block Tagged Accounting Policy: AMGN-20110331_note1_accounting_policy_table8 - amgn:BusinessCombinationsPolicyTextBlock--> <div align="justify" style="font-size: 10pt; font-family: 'Times New Roman',Times,serif"> <div align="left" style="font-size: 10pt; margin-top: 10pt"><i>Business combinations</i> </div> <div align="justify" style="font-size: 10pt; margin-top: 10pt; text-indent:8%">Business combinations are accounted for using the acquisition method of accounting. Under the acquisition method, assets acquired, including in-process research and development (IPR&#038;D) projects, and liabilities assumed are recorded at their respective fair values as of the acquisition date in our condensed consolidated financial statements. The excess of the acquisition date fair value of consideration over the fair value of the net assets acquired is recorded as goodwill. Contingent consideration obligations incurred in connection with a business combination are recorded at their fair values on the acquisition date. We revalue these obligations each subsequent reporting period until the related contingencies are resolved and record changes in their fair values in earnings. See Note 2, Acquisitions. </div> </div> <!--DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd" --> <!-- Begin Block TaggedfalsefalsefalsefalsefalseOtherus-types:textBlockItemTypestringDescribes the accounting policy to record business combinations which may include a description of the method of accounting, how the amount of goodwill was determined and the accounting treatment of contingent consideration.No authoritative reference available.falsefalse19Summary of significant accounting policies (Policies)UnKnownUnKnownUnKnownUnKnownfalsetrue