Accumulated Other Comprehensive Income (Loss) (Details) (Schedule of Accumulated Other Comprehensive Income (Loss)) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 28, 2014	Jun. 29, 2013	Jun. 28, 2014	Jun. 29, 2013
Unrealized gains (losses) on available-for-sale securities:
Beginning Balance	$ 1	$ 0	$ 1	$ 0
Unrealized gains (losses) arising during the period, net of tax effects	0	0	0	0
Reclassification adjustment for (gains) losses realized and included in net loss, net of tax effects	0	0	0	0
Total other comprehensive income (loss)	0	0	0	0
Ending Balance	1	0	1	0
Unrealized gains (losses) on cash flow hedges:
Beginning balance	(4)	(4)	(3)	(3)
Unrealized gains (losses) arising during the period, net of tax effects	3	(2)	0	(3)
Reclassification adjustment for (gains) losses realized and included in net loss, net of tax effects	1	0	3	0
Total other comprehensive income (loss)	4	(2)	3	(3)
Ending balance	0	(6)	0	(6)
Total:
Beginning balance	(3)	(4)	(2)	(3)
Unrealized gains (losses) arising during the period, net of tax effects	3	(2)	0	(3)
Reclassification adjustment for (gains) losses realized and included in net loss, net of tax effects	1	0	3	0
Total other comprehensive income (loss)	4	(2)	3	(3)
Ending balance	$ 1	$ (6)	$ 1	$ (6)