v2.4.0.6
Subsequent Events (Details) (USD $)
In Billions, except Per Share data, unless otherwise specified
1 Months Ended 0 Months Ended
Jul. 31, 2012
Jun. 30, 2012
MSSB
Jul. 19, 2012
Quarterly Dividend Declared
Subsequent Event [Line Items]      
Dividends declared to common shareholders     $ 0.05
Increase (decrease) in long-term borrowings (net of repayments/issuances) $ (0.8)    
Additional percent of interest in an acquiree to purchase   14.00%