Document and Entity Information (Parenthetical)	Jun. 30, 2010
Document and Entity Information [Abstract]
Common stock held by directors and officers and any stockholders whose ownership exceeds five percent of the stock outstanding	1,085,011

Name:

amgn_SharesCommonStockExcludedFromPublicFloatCalculation

Namespace Prefix:

amgn

Data Type:

xbrli:sharesItemType

Balance Type:

na

Period Type:

instant