Share-Based Compensation Plans (Schedule Of Compensation Expense) (Details) (USD $) In Millions, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Share-based compensation expense included in Operating earnings	$ 153	$ 184	$ 168
Tax benefit	47	62	51
Share-based compensation expense, net of tax	106	122	117
Decrease in basic earnings per share	$ (0.40)	$ (0.42)	$ (0.34)
Decrease in diluted earnings per share	$ (0.39)	$ (0.41)	$ (0.34)
Share-based compensation expense in discontinued operations	0	0	13
Cost of sales
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Share-based compensation expense included in Operating earnings	20	25	20
Selling, General And Administrative Expenses
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Share-based compensation expense included in Operating earnings	93	112	112
Research And Development Expenditures
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Share-based compensation expense included in Operating earnings	$ 40	$ 47	$ 36