Derivative Instruments - Impact on Balance Sheets, after Netting Adjustments (Details 1b) (USD $) In Millions	Sep. 30, 2011	Dec. 31, 2010
Derivative receivables and payables
Derivative receivables balance	$ 108,853	$ 80,481
Derivative payables	79,249	69,219
Trading assets
Derivative receivables and payables
Derivative receivables balance	108,853	80,481
Trading liabilities
Derivative receivables and payables
Derivative payables	79,249	69,219
Interest rate contract
Derivative receivables and payables
Derivative receivables balance	50,648	32,555
Derivative payables	25,367	20,387
Credit derivatives
Derivative receivables and payables
Derivative receivables balance	7,033	7,725
Derivative payables	6,215	5,138
Foreign exchange
Derivative receivables and payables
Derivative receivables balance	25,887	25,858
Derivative payables	22,217	25,015
Equity
Derivative receivables and payables
Derivative receivables balance	8,504	4,204
Derivative payables	9,186	10,450
Commodity
Derivative receivables and payables
Derivative receivables balance	16,781	10,139
Derivative payables	$ 16,264	$ 8,229