Short-term Borrowings and Other Debt Obligations (Tables)

3 Months Ended

Mar. 31, 2018

Line of Credit Facility [Line Items]

Schedule of Short-term Debt [Table Text Block]

(Dollars in millions)	March 31, 2018		December 31, 2017
Revolving Credit Agreement	$	25	$	—
Other Short-term Loans	4		11
Current Portion of Long-term Debt	124		137
Short-term Borrowings and Current Portion of Long-term Debt	$	153	$	148

Schedule of Line of Credit Facilities [Table Text Block]

At March 31, 2018, we had $744 million available under the Credit Agreements and the following table summarizes our borrowing availability under these agreements:

(Dollars in millions)	March 31, 2018
Facilities	$	1,263
Less uses of facilities:
Revolving Credit Agreement	25
Letters of Credit	131
Secured Term Loan Principal Borrowing	363
Borrowing Availability	$	744