Variable Interest Entities (Unconsolidated Variable Interest Entities) (Details) (USD $) In Millions, unless otherwise specified			3 Months Ended
	Jun. 30, 2012	Dec. 31, 2011	Jun. 30, 2012 Unconsolidated VIEs [Member]	Jun. 30, 2012 PTL [Member]	Jun. 30, 2012 PTL [Member] Investment in Unconsolidated VIEs [Member]	Dec. 31, 2011 PTL [Member] Investment in Unconsolidated VIEs [Member]	Jun. 30, 2012 All Other [Member] Investment in Unconsolidated VIEs [Member]	Dec. 31, 2011 All Other [Member] Investment in Unconsolidated VIEs [Member]	Jun. 30, 2012 Total [Member] Investment in Unconsolidated VIEs [Member]	Dec. 31, 2011 Total [Member] Investment in Unconsolidated VIEs [Member]
Variable Interest Entity [Line Items]
Non Controlling Stake In VIE				$ 5,093
Outstanding Debt Paid By Limited Partner To Company Financed Through Third Parties And Recapitalization			2,382
Partnership interest				799
Loans and advances				4,259
Real Estate Investments							3,075
Debt Investment Fund			4,268
Factored Receivables			1,807
Other assets and investment securities					5,093	7,038	7,825	7,318	12,918	14,356
Financing receivables	273,984	288,847			0	0	3,002	2,507	3,002	2,507
Total investment					5,093	7,038	10,827	9,825	15,920	16,863
Contractual obligations to fund new investments or guarantees					189	600	2,206	2,244	2,395	2,844
Revolving lines of credit					10	1,356	47	92	57	1,448
Total					$ 5,292	$ 8,994	$ 13,080	$ 12,161	$ 18,372	$ 21,155