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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: Valuation and Qualifying Accounts
The table below details the activity of the allowance for credit losses and sales credits for the years ended December 31, 2021, 2022, and 2023 (in millions):
Balance at
Beginning of Year
AdditionsUsageBalance at
End of Year
Year ended December 31, 2021
$1,344 $2,092 $(2,047)$1,389 
Year ended December 31, 2022
$1,389 $2,125 $(2,301)$1,213 
Year ended December 31, 2023
$1,213 $3,115 $(2,737)$1,591 
Note:Additions to the allowance for credit losses are charged to expense. Additions to the allowance for sales credits are charged against revenues.