Retirement Plans (Schedule Of Amounts Recognized In Balance Sheet) (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Defined Benefit Plan Disclosure [Line Items]
Non-current liability	$ 2,205	$ 4,112
U.S. Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Non-current asset	0	0
Current liability	(46)	(32)
Non-current liability	(2,151)	(4,058)
Amounts recognized in the consolidated balance sheet	(2,197)	(4,090)
Non-U.S. Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Non-current asset	9	4
Current liability	(2)	(2)
Non-current liability	(54)	(54)
Amounts recognized in the consolidated balance sheet	$ (47)	$ (52)