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Discontinued Operations
6 Months Ended
Jun. 30, 2013
Discontinued Operations And Disposal Groups [Abstract]  
Discontinued Operations

Note 12. Discontinued Operations

During the six months ended June 30, 2013, we recorded a $70 million tax benefit, primarily as a result of the reversal of a reserve associated with an uncertain tax position, which was related to a previous disposition. The applicable statute of limitation for this tax position lapsed during the first quarter of 2013 (see Note 14).