Short-Term Borrowings and Credit Arrangements (Tables)

12 Months Ended

Dec. 31, 2014

Short-term Debt [Abstract]

Schedule of Short-term Debt

Short-term borrowings and the corresponding weighted average interest rates as of December 31 were as follows (dollars in millions, except for percentages):

	2014				2013
Short-Term Debt	Balance		Interest Rate		Balance		Interest Rate
Commercial Paper	$	267.8	0.50	%	$	141.0	0.41	%

The following information relates to commercial paper for the years ended December 31 (dollars in millions):

	2014			2013
Maximum short-term debt outstanding	$	276.9		$	199.9
Average short-term debt outstanding	$	132.5		$	69.0
Weighted-average interest rate	0.39		%	0.40		%