Income Taxes (Schedule Of Components Of Deferred Tax Liabilities and Assets) (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Deferred tax assets:
Foreign currency translation	$ 0	$ 2
Unrealized losses on securities, net	131	651
Deferred compensation	175	162
Defined benefit pension plan	155	180
Expenses	172	141
Real estate	20	28
Tax credits	76	34
Non-U.S. earnings	0	14
Other	63	56
Total deferred tax assets	792	1,268
Valuation allowance for deferred tax assets	(28)	(19)
Deferred tax assets, net of valuation allowance	764	1,249
Deferred tax liabilities:
Lease financing transactions	370	397
Fixed and intangible assets	1,099	1,067
Non-U.S. earnings	118	0
Foreign currency translation	56	0
Other	81	21
Total deferred tax liabilities	$ 1,724	$ 1,485