Leases (Tables)

12 Months Ended

Dec. 31, 2013

Leases [Abstract]

Summary of net rental expense for operating leases

The following table is a summary of the Company’s net rental expense for operating leases for the years ended December 31:

In millions	2013			2012			2011
Minimum rentals	$	2,210		$	2,165		$	2,087
Contingent rentals	41			48			49
	2,251			2,213			2,136
Less: sublease income	(21		)	(20		)	(19		)
	$	2,230		$	2,193		$	2,117

Summary of future minimum lease payments under capital and operating leases

The following table is a summary of the future minimum lease payments under capital and operating leases as of December 31, 2013:

In millions	Capital Leases			Operating Leases(1)
2014	$	46		$	2,175
2015	46			2,129
2016	47			2,055
2017	47			1,964
2018	47			1,853
Thereafter	556			16,914
Total future lease payments	789			$	27,090
Less: imputed interest	(399		)
Present value of capital lease obligations	$	390

(1) Future operating lease payments have not been reduced by minimum sublease rentals of $224 million due in the future under noncancelable subleases.