DEBT (Tables)

9 Months Ended

Sep. 30, 2015

Debt Disclosure [Abstract]

Components of long-term debt

The components of long-term debt were as follows: 

(Dollars in millions)	September 30, 2015			December 31, 2014
Principal Value:
Revolver Borrowings	$	322.0		$	—
4.90% Notes due 2019	700.0			700.0
5.90% Notes due 2039	300.0			300.0
4.60% Notes due 2044	500.0			500.0
Sub-total	1,822.0			1,500.0
Adjustments to Principal Value:
Unamortized basis adjustment for settled interest rate swaps	7.4			8.8
Unamortized bond discount	(3.8		)	(4.0		)
Fair-value interest rate swaps	13.7			(0.9		)
Long-term debt	$	1,839.3		$	1,503.9

Components of interest expense-net

The components of interest expense-net were as follows: 

	Three Months Ended September 30,						Nine Months Ended September 30,
(In millions)	2015			2014			2015			2014
Interest expense	$	16.8		$	20.6		$	49.7		$	53.2
Interest income	(2.0		)	(2.3		)	(7.2		)	(7.2		)
Interest expense-net	$	14.8		$	18.3		$	42.5		$	46.0