Short-term Borrowings and Current Portion of Long-term Debt (Tables)

12 Months Ended

Dec. 31, 2015

Debt Disclosure [Abstract]

Components of short-term borrowings

Our short-term borrowings and current portion of long-term debt consists of the followings:

	December 31,
(Dollars in millions)	2015			2014
Commercial paper program	$	—		$	245
Revolving credit facility	967			—
364-day term loan facility	—			175
Other short-term bank loans	214			257
Total short-term borrowings	1,181			677
Current portion of long-term debt	401			50
Short-term borrowings and current portion of long-term debt	$	1,582		$	727
Weighted average interest rate on short-term borrowings outstanding at end of year	2.7		%	1.4		%