The fiscal year 2015 and 2014 financial statements for AT&T's financial statements contained the following information:

Balance Sheets ($ in millions) 2015 2014

Current assets:

Accounts receivable, net of allowances for

doubtful accounts of $704 and $454 $16,532 $14,527

Income Statements ($ in millions) 2015 2014

Revenues $146,801 $132,447

In addition, the statement of cash flows disclosed bad debt expense of $1,416 million in 2015 and $1,032 million in 2014.

Calculate the following (must show work below to get credit:

Actual bad debt write-offs made during 2015:

Cash collected from customers in 2015 (dont forget to include your answer for part 1):