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Supplemental Cash Flow Information (Tables)
3 Months Ended
Mar. 31, 2016
Supplemental Cash Flow  
Noncash Investing and Financing Activities
Cash payments related to interest and income taxes in addition to non-cash investing and financing activities are presented in the following table for the three months ended March 31:
    
($ in millions) 20162015
Cash Payments:   
Interest$191166
Income taxes 33413
    
Transfers:   
Portfolio loans to loans held for sale  3 9
Loans held for sale to portfolio loans  12 78
Portfolio loans to OREO  12 33