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Leases (Tables)
12 Months Ended
Dec. 31, 2011
Leases  
Summary of net rental expense for operating leases

 

 

In millions

 

2011

 

2010

 

2009

 

Minimum rentals

 

$

2,087

 

$

2,001

 

$

1,857

 

Contingent rentals

 

49

 

53

 

61

 

 

 

 

 

 

 

 

 

 

 

2,136

 

2,054

 

1,918

 

Less: sublease income

 

(19

)

(19

)

(19

)

 

 

 

 

 

 

 

 

 

 

$

2,117

 

$

2,035

 

$

1,899

 

Summary of future minimum lease payments under capital and operating leases

 

 

In millions

 

Capital
Leases

 

Operating
Leases(1)

 

2012

 

$

20

 

$

2,230

 

2013

 

20

 

2,143

 

2014

 

20

 

1,936

 

2015

 

20

 

1,880

 

2016

 

20

 

1,806

 

Thereafter

 

237

 

17,630

 

 

 

 

 

 

 

Total future lease payments

 

337

 

$

27,625

 

 

 

 

 

 

 

Less: imputed interest

 

(169

)

 

 

 

 

 

 

 

 

Present value of capital lease obligations

 

$

168