v2.4.0.6
Commitments and Contingencies (Tables)
 6 Months Ended
Jun. 30, 2012
Credit Risk Of Financial Instruments By Contractual Amounts
     June 30
2012		      December 31
2011		  
     (In millions)  

Unused commitments to extend credit

    $ 36,020       $ 37,872   

Standby letters of credit

      2,016         2,084   

Commercial letters of credit

      42         33   

Liabilities associated with standby letters of credit

      37         37   

Assets associated with standby letters of credit

      36         36   

Reserve for unfunded credit commitments

      91         78