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Bank Premises and Equipment (Tables)
3 Months Ended
Mar. 31, 2015
Bank Premises and Equipment  
Bank Premises and Equipment
The following table provides a summary of bank premises and equipment as of: 
      
($ in millions) March 31, 2015December 31, 2014
Land and improvements$814  816 
Buildings 1,820  1,810 
Equipment 1,706  1,682 
Leasehold improvements 418  416 
Construction in progress 81  98 
Accumulated depreciation and amortization (2,406)  (2,357) 
Total $2,433 2,465