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SCHEDULE II - VALUATION AND QUALIFYING ACCOUNTS
12 Months Ended
Dec. 31, 2023
SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract]  
Schedule II - Valuation and Qualifying Accounts
SCHEDULE II
AMGEN INC.
VALUATION AND QUALIFYING ACCOUNTS
Years ended December 31, 2023, 2022 and 2021
(In millions)
Allowance for doubtful accountsBalance
at beginning
of period
Additions
charged to
costs and
expenses
Other
additions
DeductionsBalance
at end
of period
Year ended December 31, 2023
$22 $$— $— $28 
Year ended December 31, 2022
$26 $— $— $(4)$22 
Year ended December 31, 2021
$32 $— $— $(6)$26