Liabilities, Commitments And Contingencies (Schedule Of Accrued Liabilities) (Details) - USD ($) $ in Millions	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Commitments and Contingencies Disclosure [Abstract]
Accrued compensation and employee benefit costs	$ 5,624	$ 5,868
Environmental	566	601	$ 649
Product warranties	1,485	1,504	$ 1,570
Forward loss recognition	757	414
Dividends payable	721	637
Taxes Payable	262	119
Other	4,599	4,319
Total	$ 14,014	$ 13,462