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Contingencies and commitments Contingencies and commitments (Details Textual) (USD $)
In Millions, unless otherwise specified |
12 Months Ended | 0 Months Ended | 12 Months Ended | 1 Months Ended | 12 Months Ended | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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Dec. 31, 2012
|
Dec. 31, 2011
|
Dec. 31, 2010
|
Dec. 31, 2012
In re Amgen Inc. Securities Litigation [Member]
complaints
|
Dec. 31, 2012
Larson v. Sharer, et al [Member]
complaints
|
Dec. 31, 2012
Federal Derivative Ligiation [Member]
|
Dec. 31, 2012
Ramos v. Amgen Inc., et al. [Member]
defendants
|
Dec. 31, 2012
Harris, et. al. v. Amgen Inc. [Member]
plaintiffs
|
Sep. 01, 2009
Massachusetts Qui Tam Action [Member]
states
|
May 07, 2009
Massachusetts Qui Tam Action [Member]
states
|
Oct. 30, 2009
Amended Complaint, Massachusetts District Court [Member]
states
|
Dec. 19, 2012
Original Qui Tam Actions [Member]
actions
|
Dec. 31, 2012
Original Qui Tam Actions [Member]
actions
|
Oct. 31, 2011
Additional Qui Tam [Member]
actions
|
Dec. 19, 2012
Qui Tam Litigation, Civil Liability [Member]
|
Dec. 19, 2012
Qui Tam Litigation, Criminal Liability [Member]
|
Dec. 31, 2012
U.S. ex rel. May v. Amgen, et al. [Member]
actions
|
Dec. 31, 2012
Settled Litigation Related to Sales and Marketing Practices [Member]
|
Dec. 19, 2012
Settled Litigation Related to Sales and Marketing Practices [Member]
states
|
Dec. 31, 2012
U.S. District Court, Eastern District of New York [Member]
Original Qui Tam Actions [Member]
actions
|
Dec. 31, 2012
U.S. District Court, Western District of Washington [Member]
Original Qui Tam Actions [Member]
actions
|
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| Loss Contingencies [Line Items] | |||||||||||||||||||||
| Number of stockholder complaints | 6 | 3 | |||||||||||||||||||
| Length of time Federal Derivative Litigation cases stayed after Amgen Inc. Securities Litigation | 30 days | ||||||||||||||||||||
| Number of defendants | 4 | ||||||||||||||||||||
| Number of plaintiffs | 2 | ||||||||||||||||||||
| Number of states with complaints | 17 | 14 | |||||||||||||||||||
| Number of states | 49 | ||||||||||||||||||||
| Number of pending claims | 8 | 1 | |||||||||||||||||||
| Number of states with notice of intervention | 14 | ||||||||||||||||||||
| Number of claims settled | 9 | 2 | |||||||||||||||||||
| Number of claims including pending and settled claims | 10 | ||||||||||||||||||||
| Number of claims filed | 1 | ||||||||||||||||||||
| Settlement agreement, consideration to resolve case | $ 612 | $ 150 | |||||||||||||||||||
| Compliance program and integrity obligations period | 5 years | ||||||||||||||||||||
| Future rental commitments for abandoned leases | 331 | ||||||||||||||||||||
| Rental expense on operating leases | 117 | 131 | 115 | ||||||||||||||||||
| Minimum contractual purchase commitments with third party manufacturers through 2014 | 39 | ||||||||||||||||||||
| Purchases under contractual purchase commitments | $ 123 | $ 87 | $ 68 | ||||||||||||||||||