Quarterly report pursuant to Section 13 or 15(d)

Merger and Restructuring Activity (Details)

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Merger and Restructuring Activity (Details) (USD $)
In Millions
3 Months Ended 9 Months Ended
Sep. 30, 2011
Sep. 30, 2010
Sep. 30, 2011
Sep. 30, 2010
Merger and Restructuring Charges        
Severance and employee-related charges $ 48 $ 88 $ 181 $ 362
Systems integrations and related charges 62 260 247 898
Other 66 73 109 190
Total merger and restructuring charges $ 176 $ 421 $ 537 $ 1,450