Commitments and Contingencies (Tables)

12 Months Ended

Dec. 31, 2015

Commitments and Contingencies Disclosure [Abstract]

Schedule of future minimum lease payments for capital leases

Future minimum lease payments with initial or remaining non-cancelable lease terms in excess of one year, at December 31, 2015, were as follows:

(Dollars in millions)	Capital Leases			Operating Leases
Year ending December 31:
2016	$	22.0		$	537.0
2017	14.8			414.1
2018	14.3			327.6
2019	3.8			246.9
2020	2.4			179.1
Thereafter (through 2027)	3.6			502.1
Total minimum lease payments	$	60.9		$	2,206.8
Amount representing interest	(1.8		)
Present value of minimum lease payments	$	59.1

Schedule of future minimum rental payments for operating leases

Future minimum lease payments with initial or remaining non-cancelable lease terms in excess of one year, at December 31, 2015, were as follows:

(Dollars in millions)	Capital Leases			Operating Leases
Year ending December 31:
2016	$	22.0		$	537.0
2017	14.8			414.1
2018	14.3			327.6
2019	3.8			246.9
2020	2.4			179.1
Thereafter (through 2027)	3.6			502.1
Total minimum lease payments	$	60.9		$	2,206.8
Amount representing interest	(1.8		)
Present value of minimum lease payments	$	59.1