Customer Financing (Schedule Of Customer Financing) (Details) - USD ($) $ in Millions	Jun. 30, 2015	Dec. 31, 2014
Customer Financing [Abstract]
Investment in sales-type/finance leases	$ 1,451	$ 1,535
Notes	362	370
Total Financing Receivables	1,813	1,905
Operating lease equipment, at cost, less accumulated depreciation of $631 and $571	1,587	1,677
Gross customer financing	3,400	3,582
Less allowance for losses on receivables	(16)	(21)
Total	3,384	3,561
Operating lease equipment- Accumulated depreciation	$ 631	$ 571