Financing Receivables, Allowance For Losses On Financing Receivables and Supplemental Information on Credit Quality (Contractual Maturities) (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Total loans
Investment in financing leases, net of deferred income	$ 258,207	$ 273,105
Loans Receivable [Member]
Total loans
Investment in financing leases, net of deferred income	231,268	240,634
Loans Receivable [Member] | Revolving [Member]
Total loans
Investment in financing leases, net of deferred income	62,292
Loans Receivable [Member] | Nonrevolving [Member]
Total loans
2014	54,971
2015	19,270
2016	19,619
2017	17,281
2018	14,714
2019 and later	43,121
Investment in financing leases, net of deferred income	168,976
Financing Receivable [Member]
Total loans
Investment in financing leases, net of deferred income	26,939	32,471
Net rentals receivables
2014	8,184
2015	6,114
2016	4,209
2017	2,733
2018	1,798
2019 and later	3,452
Net rentals receivable	26,490	31,789
Consumer revolving loans	0
Total	$ 26,490