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Bank Premises and Equipment
12 Months Ended
Dec. 31, 2012
Bank Premises and Equipment

7. BANK PREMISES AND EQUIPMENT

The following is a summary of bank premises and equipment at December 31:
      
($ in millions) Estimated Useful Life 20122011
Land and improvements  $841 834
Buildings 5 to 50 yrs. 1,692 1,623
Equipment 2 to 20 yrs. 1,460 1,318
Leasehold improvements 3 to 40 yrs. 386 394
Construction in progress   141 140
Accumulated depreciation and amortization   (1,978) (1,862)
Total   $2,5422,447
      

The following table provides the annual future minimum payments under capital leases and noncancelable operating leases at December 31, 2012:
    
($ in millions) Operating LeasesCapital Leases
Year ended December 31,   
2013$897
2014 857
2015 816
2016 743
2017 66 -
Thereafter 3741
Total minimum lease payments$76924
Less: Amounts representing interest  -3
Present value of net minimum lease payments  -21