Earnings per Common Share (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Basic EPS:
Net Income Available to Ingredion - basic	$ 130	$ 117	$ 254	$ 248
Weighted average number of shares outstanding, basic	71.8	72.2	72.0	72.1
Basic earnings per common share of Ingredion (in dollars per share)	$ 1.81	$ 1.62	$ 3.53	$ 3.44
Effect of Dilutive Securities:
Incremental shares from assumed exercise of dilutive stock options and vesting of dilutive RSUs and other awards	1.4	1.8	1.4	1.7
Diluted EPS:
Net Income Available to Ingredion - diluted	$ 130	$ 117	$ 254	$ 248
Weighted Average Number of Shares Outstanding, Diluted, Total	73.2	74.0	73.4	73.8
Diluted earnings per common share of Ingredion (in dollars per share)	$ 1.78	$ 1.58	$ 3.46	$ 3.36
Antidilutive securities excluded in calculation of diluted EPS:
Antidilutive securities excluded from computation of earnings per share amount	0.3	0.1	0.3	0.3