Stock Transactions And Stock-Based Compensation (Narrative) (Details) (USD $) In Millions, except Share data, unless otherwise specified	3 Months Ended	9 Months Ended
	Sep. 27, 2013	Sep. 27, 2013	Sep. 28, 2012	Jul. 16, 2013	Dec. 31, 2012	May 31, 2012	May 09, 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock, shares authorized (shares)						2,000,000,000	1,000,000,000
Common stock, par value (dollars per share)	$ 0.01	$ 0.01			$ 0.01	$ 0.01
Stock repurchased during period, shares	0	0
Stock repurchase program, authorized shares to be repurchased				20,000,000
Stock repurchase program, remaining number of shares authorized to be repurchased	20,000,000	20,000,000
Common shares reserved for issuance under the 2007 Stock Incentive Plan (shares)	29,000,000	29,000,000
Aggregate intrinsic value of options exercised		$ 136	$ 161
Cash receipts due to exercise of options		134	146
Tax benefit realized related to exercise of stock options	12	43
Tax benefit related to the vesting of restricted stock units	12	26
Total number of shares withheld sufficient to fund minimum tax withholding requirements related to the vesting of restricted stock units (shares)		496,000
Total value of shares withheld sufficient to fund minimum tax withholding requirements related to the vesting of restricted stock units		32
Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total unrecognized compensation cost	162	162
Weighted average period for cost to be recognized (in years)		3 years
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total unrecognized compensation cost	$ 145	$ 145
Weighted average period for cost to be recognized (in years)		3 years