Debt (Tables)

12 Months Ended

Dec. 31, 2014

Debt Disclosure [Abstract]

Long-Term Debt

The Company’s total indebtedness as of December 31, 2014 and 2013 consisted of the following:

	December 31,
	2014		2013
	(Dollars in millions)
2013 Term Loan Facility due September 2020	$	1,175.1	$	1,185.4
7.375% Senior Notes due November 2016	650.0		650.0
6.00% Senior Notes due November 2018	1,518.8		1,518.8
6.50% Senior Notes due September 2020	650.0		650.0
6.25% Senior Notes due November 2021	1,339.6		1,339.6
7.875% Senior Notes due November 2026	247.6		247.5
Convertible Junior Subordinated Debentures due December 2066	382.3		379.7
Capital lease obligations	22.2		30.5
Other	1.2		0.9
Total	$	5,986.8	$	6,002.4

Schedule of Interest Payments

Interest payments on the Senior Notes are scheduled to occur each year as follows:

Senior Notes	Interest Payment Dates
6.00% Senior Notes	May 15 and November 15
6.25% Senior Notes	May 15 and November 15
6.50% Senior Notes	March 15 and September 15
7.375% Senior Notes	May 1 and November 1
7.875% Senior Notes	May 1 and November 1

Carrying amount of the equity and debt components of the Debentures

The following table illustrates the carrying amount of the equity and debt components of the Debentures:

	December 31,
	2014			2013
	(Dollars in millions)
Carrying amount of the equity component	$	215.4		$	215.4
Principal amount of the liability component	$	732.5		$	732.5
Unamortized discount	(350.2		)	(352.8		)
Net carrying amount	$	382.3		$	379.7

Effective interest rate and the interest expense related to the Debentures

The following table illustrates the effective interest rate and the interest expense related to the Debentures:

	Year Ended December 31,
	2014			2013			2012
	(Dollars in millions)
Effective interest rate	4.9		%	4.9		%	4.9		%
Interest expense — contractual interest coupon	$	34.8		$	34.8		$	34.8
Interest expense — amortization of debt discount	2.6			2.3			2.1

Aggregate amounts of Long term debt maturities

The aggregate amounts of long-term debt maturities (including unamortized debt discounts) subsequent to December 31, 2014, including capital lease obligations, were as follows:

Year of Maturity	(Dollars in millions)
2015	$	21.2
2016	669.0
2017	12.9
2018	1,530.9
2019	12.1
2020 and thereafter	3,740.7
Total	$	5,986.8