Supplemental Financial Information (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Details of Product Revenue
Product sales through direct sales force	75.70%	78.10%	77.70%	79.00%
Product sales maintained under fulfillment distributor arrangements	5.80%	6.70%	5.80%	5.90%
Product sales through distributors	18.50%	15.20%	16.50%	15.10%
Total product sales	100.00%	100.00%	100.00%	100.00%
Income from the Qualcomm Agreement
Income from Qualcomm Agreement for Quarter 4, 2012			$ 43
Income from Qualcomm Agreement for Quarter 1, 2013			44
Income from Qualcomm Agreement for Quarter 2, 2013			43
Income from Qualcomm Agreement			$ 130