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Accrued Liabilities
9 Months Ended
Sep. 30, 2021
Accrued Liabilities [Abstract]  
Accrued liabilities Accrued Liabilities
Accrued liabilities consisted of the following:
(in millions)September 30, 2021December 31, 2020
Accounts payable non-trade$271 408 
Allowance for sales returns186 267 
Accrued compensation and benefits147 214 
Other279 413 
$883 1,302