Quarterly report pursuant to Section 13 or 15(d)

Accumulated Other Comprehensive Income (Loss) (Details) (Schedule of Accumulated Other Comprehensive Income (Loss))

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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)