Annual report pursuant to Section 13 and 15(d)

BUSINESS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details 3)

v3.6.0.2
BUSINESS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details 3) - Allowance for doubtful accounts - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Activity in the allowance for doubtful accounts      
Balance at beginning of year $ 352 $ 331 $ 61
Net charges to costs and expenses 126 45 308
Write-offs (10) (10) (13)
Other (2) (14) (25)
Balance at end of year $ 466 $ 352 $ 331