Accumulated Other Comprehensive Income (Loss) (Details) (Schedule of Accumulated Other Comprehensive Income (Loss)) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 27, 2014	Sep. 28, 2013	Sep. 27, 2014	Sep. 28, 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	0	(6)	(3)	(3)
Unrealized gains (losses) arising during the period, net of tax effects	(3)	3	(3)	0
Reclassification adjustment for (gains) losses realized and included in net loss, net of tax effects	1	1	4	1
Total other comprehensive income (loss)	(2)	4	1	1
Ending balance	(2)	(2)	(2)	(2)
Total:
Beginning balance	1	(6)	(2)	(3)
Unrealized gains (losses) arising during the period, net of tax effects	(3)	3	(3)	0
Reclassification adjustment for (gains) losses realized and included in net loss, net of tax effects	1	1	4	1
Total other comprehensive income (loss)	(2)	4	1	1
Ending balance	$ (1)	$ (2)	$ (1)	$ (2)