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Background and Basis of Presentation
 12 Months Ended
Dec. 31, 2016
Organization, Consolidation and Presentation of Financial Statements [Abstract]  
Background and Basis of Presentation
Note 1: Background and Basis of Presentation

ON Semiconductor Corporation (“ON Semiconductor”), together with its wholly and majority-owned subsidiaries (the “Company”), prepares its financial statements in accordance with generally accepted accounting principles in the United States of America. During the third quarter of 2016, the Company realigned its operating and reporting segments into the following three operating and reporting segments: Power Solutions Group, Analog Solutions Group and Image Sensor Group. The operating results of the System Solutions Group, which was previously the Company’s fourth operating and reporting segment, and which did not have goodwill, are now assigned among the three current operating and reporting segments, and previously reported information has been presented to reflect the current three operating and reporting segments. The Company’s Power Solutions Group and Analog Solutions Group operating and reporting segments include the business acquired in the Fairchild Transaction. 

Acquisition of Fairchild

On September 19, 2016, the Company completed its acquisition of Fairchild Semiconductor International, Inc., a Delaware corporation (“Fairchild”), pursuant to the Agreement and Plan of Merger (the “Fairchild Agreement”) with each of Fairchild and Falcon Operations Sub, Inc., a Delaware corporation and the Company’s wholly-owned subsidiary (“Merger Sub”), which provided for the acquisition of Fairchild by the Company (the “Fairchild Transaction”). Fairchild is a semiconductor company that delivers energy-efficient, easy-to-use and value-added semiconductor solutions for power and mobile designs.