Commitments (Narratives) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Commitments [Abstract]
Lease Expiration Date	through December 2015
Operating Leases, Rent Expense, Net	$ 6	$ 6	$ 6
Purchase Commitment, Remaining Minimum Amount Committed	16
Other Commitment Remaining Minimum Amount Paid	25
Long-term Purchase Commitment, Description	During 2010, The Company announced an investment agreement with the Management Committee of the Chengdu Hi-Tech Industrial Development Zone (the “CDHT”). Under this agreement, The Company has agreed to form a joint venture with a Chinese partner, Chengdu Ya Guang Electronic Company Limited, to establish a semiconductor manufacturing facility for surface mount component production, assembly and test in Chengdu, China. The Company initially will own at least 95% of the joint venture. The manufacturing facility will be developed in phases over a ten year period, and the Company expects to contribute at least $48 million to the joint venture in installments during the first three years. The CDHT will grant the joint venture a fifty year land lease, provides temporary facilities for up to three years at a subsidized rent while the joint venture builds the manufacturing facility and provides corporate and employee tax incentives, tax refunds, subsidies and other financial support to the joint venture and its qualified employees. If the joint venture fails to achieve specified levels of investment, the investment agreement allows for a renegotiation as well as the option to repay a portion of such financial support. This is a long-term, multi-year project that will provide additional capacity for the Company has needed.
Other Commitment Remaining Minimum Amount Committed	48
Long-term Purchase Commitment, Potential Adverse Consequences	If the joint venture fails to achieve specified levels of investment, the investment agreement allows for a renegotiation as well as the option to repay a portion of such financial support.
Other Commitment Remaining Minimum Amount Paid For Capital Expenditures	$ 18