THOUSAND OAKS, Calif.--(BUSINESS WIRE)--Amgen (NASDAQ:AMGN) today announced offers to exchange (1) any and all of its $2,000,000,000 Senior Floating Rate Notes due 2008 for an equal amount of new Senior Floating Rate Notes due 2008, (2) any and all of its $1,100,000,000 5.85 percent Senior Notes due 2017 for an equal amount of new 5.85 percent Senior Notes due 2017, and (3) any and all of its $900,000,000 6.375 percent Senior Notes due 2037 for an equal amount of new 6.375 percent Senior Notes due 2037.