Retirement Plans (Pension Benefit Adjustments Recognized In Other Comprehensive (Loss) Income) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013
U.S. Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Current year actuarial (gain) loss	$ (1,854)
Amortization of actuarial loss	(485)
Current year prior service cost	0
Amortization of prior service cost	(34)
Curtailments	(19)
Total recognized in other comprehensive income	(2,392)
Non-U.S. Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Current year actuarial (gain) loss	(4)
Amortization of actuarial loss	(1)
Current year prior service cost	0
Amortization of prior service cost	0
Curtailments	0
Total recognized in other comprehensive income	$ (5)