Other Comprehensive Income Information (Amounts Reclassified Out Of Acc Other Comp Income) (Details) (Reclassification Out Of Accumulated Other Comprehensive Income [Member], USD $) In Millions, unless otherwise specified	3 Months Ended				6 Months Ended
	Jun. 30, 2013		Jun. 30, 2012		Jun. 30, 2013		Jun. 30, 2012
Accumulated Translation Adjustment [Member]
Foreign exchange translation gain/(loss) included in net income (Statement of Income line: Other Income)			$ 4,302				$ 4,235
Accumulated Defined Benefit Plans Adjustment [Member]
Amortization and settlement of postretirement benefits reserves adjustment included in net periodic benefit costs	$ (659)	[1]	$ (1,979)	[1]	$ (1,303)	[1]	$ (2,561)	[1]

[1] These accumulated other comprehensive income components are included in the computation of net periodic pension cost. (See Note 5 – Pension and Other Postretirement Benefits for additional details.)