Long-Term Borrowings (Details 1) (USD $) In Millions	Jun. 30, 2011	Dec. 31, 2010
Unsecured Long-Term Borrowings
Fixed rate obligations	$ 118,224	$ 118,699
Floating rate obligations	56,986	55,700
Unsecured long-term borrowings	175,210	174,399
U.S. Dollar [Member]
Unsecured Long-Term Borrowings
Fixed rate obligations	77,837	82,814
Floating rate obligations	26,927	27,316
Unsecured long-term borrowings	104,764	110,130
Non-U.S. Dollar [Member]
Unsecured Long-Term Borrowings
Fixed rate obligations	40,387	35,885
Floating rate obligations	30,059	28,384
Unsecured long-term borrowings	$ 70,446	$ 64,269