Impairment of Long Lived Assets	9 Months Ended
Sep. 30, 2012
Impairment of Long Lived Assets [Abstract]
Impairment of Long Lived Assets	Impairment of Long-Lived Assets In September 2012 we recorded impairment charges for developed technology of $48 million, primarily related to our 2011 acquisition of Provigent, Inc. included in our Infrastructure & Networking reportable segment. The primary factor contributing to this impairment charge was the reduction of forecasted cash flows related to certain legacy microwave technology products. In June 2012 we recorded impairment charges for developed technology of $6 million, primarily related to our 2010 acquisition of Beceem Communications, Inc., or Beceem, included in our Mobile & Wireless reportable segment. The primary factor contributing to this impairment charge was the continued reduction in the forecasted cash flows derived from the acquired WiMAX products as wireless service providers have accelerated their adoption of Long Term Evolution, LTE, products. Additionally, we recorded an impairment charge of $3 million related to certain computer software and equipment in June 2012. In March 2012 we recorded impairment charges for developed technology of $28 million, primarily related to our acquisitions of Dune Networks, Inc. and Percello Ltd. included in our Infrastructure & Networking and Broadband Communications reportable segments, respectively. The primary factor contributing to these impairment charges was the reduction in the revenue outlook for certain products and the resulting decrease to the estimated cash flows identified with the impaired assets. In September 2011 we recorded a purchased intangible impairment charge of $9 million primarily related to our acquisition of Teknovus, Inc. in 2010. The primary factor contributing to this impairment charge was a reduction in the forecasted cash flows related to this networking business. In June 2011 we recorded a purchased intangible impairment charge of $74 million related to our acquisition of Beceem. The primary factor contributing to this impairment charge was a reduction in the forecasted cash flows derived from the acquired WiMAX products as discussed above. In March 2011 we recorded an impairment charge of $9 million primarily related to a technology license that was acquired in 2008. The primary factor contributing to this impairment charge was the continued reduction in our revenue outlook for our Blu-ray business, and the related decrease to the estimated cash flows identified with the impaired assets. In determining the amount of the impairment charges we calculated fair values as of the impairment date for acquired developed technology. The fair value was determined using the multiple period excess earnings method, described in Note 3. The fair values were determined using significant unobservable inputs categorized as Level 3 inputs. The key unobservable inputs utilized in the model include discount rates ranging from 15% to 25%, a market participant tax rate of 15%, and a probability adjusted level of future cash flows based on current product and market data.

Impairment of Long-Lived Assets

In September 2012 we recorded impairment charges for developed technology of $48 million, primarily related to our 2011 acquisition of Provigent, Inc. included in our Infrastructure & Networking reportable segment. The primary factor contributing to this impairment charge was the reduction of forecasted cash flows related to certain legacy microwave technology products. In June 2012 we recorded impairment charges for developed technology of $6 million, primarily related to our 2010 acquisition of Beceem Communications, Inc., or Beceem, included in our Mobile & Wireless reportable segment. The primary factor contributing to this impairment charge was the continued reduction in the forecasted cash flows derived from the acquired WiMAX products as wireless service providers have accelerated their adoption of Long Term Evolution, LTE, products. Additionally, we recorded an impairment charge of $3 million related to certain computer software and equipment in June 2012. In March 2012 we recorded impairment charges for developed technology of $28 million, primarily related to our acquisitions of Dune Networks, Inc. and Percello Ltd. included in our Infrastructure & Networking and Broadband Communications reportable segments, respectively. The primary factor contributing to these impairment charges was the reduction in the revenue outlook for certain products and the resulting decrease to the estimated cash flows identified with the impaired assets.

In September 2011 we recorded a purchased intangible impairment charge of $9 million primarily related to our acquisition of Teknovus, Inc. in 2010. The primary factor contributing to this impairment charge was a reduction in the forecasted cash flows related to this networking business. In June 2011 we recorded a purchased intangible impairment charge of $74 million related to our acquisition of Beceem. The primary factor contributing to this impairment charge was a reduction in the forecasted cash flows derived from the acquired WiMAX products as discussed above. In March 2011 we recorded an impairment charge of $9 million primarily related to a technology license that was acquired in 2008. The primary factor contributing to this impairment charge was the continued reduction in our revenue outlook for our Blu-ray business, and the related decrease to the estimated cash flows identified with the impaired assets.

In determining the amount of the impairment charges we calculated fair values as of the impairment date for acquired developed technology. The fair value was determined using the multiple period excess earnings method, described in Note 3. The fair values were determined using significant unobservable inputs categorized as Level 3 inputs. The key unobservable inputs utilized in the model include discount rates ranging from 15% to 25%, a market participant tax rate of 15%, and a probability adjusted level of future cash flows based on current product and market data.