Earnings per Common Share (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Basic EPS:
Net Income Available to Ingredion - basic	$ 127.2	$ 83.7
Weighted average number of shares outstanding, basic	72.0	71.6
Basic earnings per common share of Ingredion (in dollars per share)	$ 1.77	$ 1.17
Incremental shares from assumed exercise of dilutive stock options and vesting of dilutive RSUs, RSAs and other awards	1.3	1.1
Diluted EPS:
Net Income Available to Ingredion - diluted	$ 127.2	$ 83.7
Weighted average number of shares outstanding, diluted	73.3	72.7
Diluted earnings per common share of Ingredion (in dollars per share)	$ 1.73	$ 1.15
Antidilutive securities excluded in calculation of diluted EPS:
Antidilutive securities excluded from computation of earnings per share amount (in dollars)	$ 0.3	$ 0.3