Annual report pursuant to Section 13 and 15(d)

Revenue Valuation Allowance and Reserves (Tables)

v3.20.4
Revenue Valuation Allowance and Reserves (Tables)
 12 Months Ended
Dec. 31, 2020
Allowance for Sales Returns [Abstract]  
Summary of activity in allowance for sales returns A summary of activity in the allowance for sales returns, recorded on a gross basis for the years ended December 31, 2020, 2019 and 2018 was as follows:
(in millions) Balance
beginning
of year		 Additions-
charged
to earnings		 Deductions Balance
end of
year
2020 $ 238  1,976  (1,947) 267 
2019 242  2,138  (2,142) 238 
2018 243  2,213  (2,214) 242