Related Parties - Additional Information (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Lite On Semiconductor
Related Party Transaction [Line Items]
Related Party ownership of common stock	17.00%		17.00%
Related Party Transaction, Description of Transaction			LSC owned approximately 17% of the Company’s outstanding Common Stock as of September 30, 2014.
Keylink
Related Party Transaction [Line Items]
Related Party ownership of common stock	5.00%		5.00%
Related Party Transaction, Description of Transaction			Keylink is the Company’s 5% joint venture partner in two of the Company’s Shanghai manufacturing facilities.
Related Party Transaction Consulting Fees From Transactions With Related Party	$ 5	$ 5	$ 14	$ 13
Nuvoton
Related Party Transaction [Line Items]
Related Party Transaction, Description of Transaction			A member of the Company’s Board of Directors who is also the Company’s President and Chief Executive Officer is a member of the Board of Directors of Nuvoton. In addition, another member of the Company’s Board of Directors is a Supervisor of the Board of Directors of Nuvoton.