Share-Based Compensation Plans (Schedule Of Compensation Expense) (Details) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 29, 2012	Oct. 01, 2011	Sep. 29, 2012	Oct. 01, 2011
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Share-based compensation expense included in Operating earnings	$ 44	$ 45	$ 139	$ 123
Tax benefit	14	14	47	39
Share-based compensation expense, net of tax	30	31	92	84
Decrease in basic earnings per share	$ (0.11)	$ (0.09)	$ (0.31)	$ (0.25)
Decrease in diluted earnings per share	$ (0.11)	$ (0.09)	$ (0.30)	$ (0.24)
Share-based compensation expense in discontinued operations	0	0	0	13
Cost Of Sales [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Share-based compensation expense included in Operating earnings	6	6	19	14
Selling, General And Administrative Expenses [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Share-based compensation expense included in Operating earnings	27	29	84	83
Research And Development Expenditures [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Share-based compensation expense included in Operating earnings	$ 11	$ 10	$ 36	$ 26