Income Taxes (Reconciliation Of Income Tax Expense Computed Using The U.S. Statutory Federal Tax Rate To Actual Income Tax Expense) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended			12 Months Ended
	Dec. 31, 2011	Jun. 26, 2011	Mar. 28, 2010	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Income Taxes [Abstract]
Income tax expense at the U.S. federal statutory tax rate				$ 1,271	$ 1,322	$ 1,465
U.S. manufacturing activity benefit				(106)	(110)	(39)
Tax deductible dividends				(62)	(56)	(49)
Research and development tax credit	(36)			(35)	(43)	(43)
IRS appeals and audit resolution		(89)		(89)	(10)	(69)
Medicare Part D law change			96		96
Other, net				(15)	(35)	(50)
Income tax expense				$ 964	$ 1,164	$ 1,215