Commitments and Contingencies (Tables)

12 Months Ended

Dec. 31, 2013

Net rental expense under operating leases was as follows:



	Years ended December 31
In millions	2013			2012			2011
Gross rental expense	$	78.7		$	45.3		$	39.9
Sublease rental income	(0.9		)	(0.5		)	(0.5		)
Net rental expense	$	77.8		$	44.8		$	39.4

Net future minimum lease commitments

Future minimum lease commitments under non-cancelable operating leases, principally related to facilities, machinery, equipment and vehicles as of December 31, 2013 were as follows:



In millions	2014			2015			2016			2017			2018			Thereafter			Total
Minimum lease payments	$	55.5		$	40.7		$	30.1		$	21.5		$	13.5		$	23.5		$	184.8
Minimum sublease rentals	(1.0		)	(0.9		)	(0.7		)	(0.1		)	(0.1		)	(0.1		)	(2.9		)
Net future minimum lease commitments	$	54.5		$	39.8		$	29.4		$	21.4		$	13.4		$	23.4		$	181.9

Changes in Carrying Amount of Service and Product Warranties

The changes in the carrying amount of service and product warranties for the years ended December 31, 2013 and 2012 were as follows:



	Years ended December 31
In millions	2013			2012
Beginning balance	$	54.3		$	29.4
Service and product warranty provision	63.4			55.7
Payments	(61.2		)	(53.3		)
Acquired	—			22.1
Translation	0.1			0.4
Ending balance	$	56.6		$	54.3