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Income Taxes - Summary of Valuation Allowance (Details) - Valuation Allowance of Deferred Tax Assets [Member] - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Movement in Valuation Allowances and Reserves [Roll Forward]      
Balance at beginning of period $ 36 $ 26 $ 19
Net charges to income tax expense 0 10 7
Release of valuation allowance [1] (36) 0 0
Balance at end of period $ 0 $ 36 $ 26
[1] Release of valuation allowance during 2015 was primarily related to the tax attributes retained by DuPont pursuant to the tax matters agreement.