Annual report pursuant to Section 13 and 15(d)

Segment and Geographic Information (Details)

v2.4.0.6
Segment and Geographic Information (Details) (USD $)
In Millions, unless otherwise specified
 3 Months Ended 12 Months Ended
Dec. 31, 2012
Sep. 30, 2012
Jun. 30, 2012
Mar. 31, 2012
Dec. 31, 2011
Sep. 30, 2011
Jun. 30, 2011
Mar. 31, 2011
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Revenue from External Customers and Long-lived Assets [Line Items]                      
Revenues, net of interest expense $ 5,650 $ 4,687 $ 5,115 $ 4,765 $ 3,705 $ 5,873 $ 6,913 $ 7,906 $ 20,217 $ 24,397 $ 27,951
Net gain (loss) due to changes in credit spreads on carrying values of certain long-term borrowings                 1,003 [1] (613) [1]  
Non-U.S.
                      
Revenue from External Customers and Long-lived Assets [Line Items]                      
Revenues, net of interest expense                 8,086 7,720 8,128
Europe, Middle East, and Africa
                      
Revenue from External Customers and Long-lived Assets [Line Items]                      
Revenues, net of interest expense                 4,412 3,897 4,605
Pacific Rim
                      
Revenue from External Customers and Long-lived Assets [Line Items]                      
Revenues, net of interest expense                 2,263 2,387 2,244
Latin America
                      
Revenue from External Customers and Long-lived Assets [Line Items]                      
Revenues, net of interest expense                 1,131 1,164 1,072
Canada
                      
Revenue from External Customers and Long-lived Assets [Line Items]                      
Revenues, net of interest expense                 280 272 207
United States [Member]
                      
Revenue from External Customers and Long-lived Assets [Line Items]                      
Revenues, net of interest expense                 12,131 [2],[3] 16,677 [2],[3] 19,823 [2],[3]
Net gain (loss) due to changes in credit spreads on carrying values of certain long-term borrowings                 $ 3,200 $ 2,000 $ 100
[1] At December 31, 2012 and December 31, 2011, Merrill Lynch's cumulative DVA reduced the derivative liabilities balance by $0.4 billion and $1.1 billion.
[2] Corporate net revenues and adjustments are reflected in the U.S. region.
[3] U.S. results for the years ended December 31, 2012, December 31, 2011 and December 31, 2010 included losses of $3.2 billion, gains of $2.0 billion and losses of $0.1 billion, respectively, due to the impact of the changes in Merrill Lynch’s credit spreads on the carrying values of certain long-term borrowings, primarily structured notes.