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Commitments and Contingencies Commitments and Contingencies (Tables)
12 Months Ended
Dec. 31, 2015
Commitments and Contingencies Disclosure [Abstract]  
Future minimum payments, capital leases
Future minimum lease payments under non-cancelable operating leases (with initial or remaining lease terms in excess of one year) and the future minimum lease payments at December 31, 2015, are as follows:


 
 
 
In millions
Capital Leases
Operating Leases
Total
2016
$
0.8

$
26.7

$
27.5

2017
0.6

23.6

24.2

2018
0.4

17.4

17.8

2019
0.1

11.6

11.7

2020

8.0

8.0

Thereafter

30.4

30.4

Total Minimum Lease Payments
1.9

117.7

119.6

Less: Amount Representing Interest
(0.1
)

(0.1
)
Present Value of Net Minimum Leases
$
1.8

$
117.7

$
119.5

Future minimum payments, operating leases
Future minimum lease payments under non-cancelable operating leases (with initial or remaining lease terms in excess of one year) and the future minimum lease payments at December 31, 2015, are as follows:


 
 
 
In millions
Capital Leases
Operating Leases
Total
2016
$
0.8

$
26.7

$
27.5

2017
0.6

23.6

24.2

2018
0.4

17.4

17.8

2019
0.1

11.6

11.7

2020

8.0

8.0

Thereafter

30.4

30.4

Total Minimum Lease Payments
1.9

117.7

119.6

Less: Amount Representing Interest
(0.1
)

(0.1
)
Present Value of Net Minimum Leases
$
1.8

$
117.7

$
119.5

Long-term purchase commitments
At December 31, 2015, total commitments under these contracts were as follows:

In millions
 
2016
$
164.4

2017
111.0

2018
89.9

2019
62.4

2020
52.4

Thereafter
219.9

Total
$
700.0