pre_text: There was no material bad debt expense in 2019, 2018 and 2017. In 2019, 2018 and 2017, the Company’s largest customer, Apple represented 17.6%, 13.1% and 10.5% of consolidated net revenues, respectively, reported in the ADG, AMS and MDG segments. In 2019, $75 million of trade accounts receivable were sold without recourse (nil in 2018).
table: December 31, 2019 December 31, 2018
table: Trade accounts receivable 1,396 1,292
table: Allowance for doubtful accounts (16) (15)
table: Total 1,380 1,277
question: Analyse this data from a financial earnings document. What is the average Trade accounts receivable?