Stock Transactions And Stock-Based Compensation (Narrative) (Details) (USD $)	0 Months Ended		3 Months Ended	6 Months Ended
	Jul. 17, 2013	Jun. 28, 2013	Jun. 28, 2013	Jun. 28, 2013	Jun. 29, 2012	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	$ 0.01
Stock repurchased during period, shares			0
Stock repurchase program, authorized amount	$ 20,000,000
Stock repurchase program, remaining authorized repurchase amount		7,500,000
Common shares reserved for issuance under the 2007 Stock Incentive Plan (shares)		31,000,000	31,000,000	31,000,000
Aggregate intrinsic value of options exercised				96,000,000	128,000,000
Cash receipts due to exercise of options				96,000,000	109,000,000
Tax benefit realized related to exercise of stock options			16,000,000	32,000,000
Tax benefit related to the vesting of restricted stock units			700,000	15,000,000
Total number of shares withheld sufficient to fund minimum tax withholding requirements related to the vesting of restricted stock units (shares)				285,000
Total value of shares withheld sufficient to fund minimum tax withholding requirements related to the vesting of restricted stock units				17,000,000
Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total unrecognized compensation cost		127,000,000	127,000,000	127,000,000
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		$ 127,000,000	$ 127,000,000	$ 127,000,000
Weighted average period for cost to be recognized (in years)				3 years