Schedule II - Valuation and Qualifying Accounts Schedule of Valuation and Qualifying Accounts (Tables)

12 Months Ended

Dec. 31, 2017

Valuation and Qualifying Accounts [Abstract]

schedule of valuation and qualifying accounts [Table Text Block]

(in millions)	Balance at Beginning of the Period	Charged to Cost and Expense	Amounts Written off	Translation Adjustment	Balance at End of the Period
Allowance for accounts receivables
(current and noncurrent)