Earnings per Common Share (Details) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Basic EPS:
Net Income Available to Ingredion	$ 102.6	$ 95.1	$ 175.2	$ 205.8
Weighted average number of shares outstanding, basic	74.9	77.6	74.8	77.5
Basic earnings per common share of Ingredion (in dollars per share)	$ 1.37	$ 1.22	$ 2.34	$ 2.65
Incremental shares from assumed exercise of dilutive stock options and vesting of dilutive RSUs, RSAs and other awards	1.1	1.3	1.1	1.3
Diluted EPS:
Net Income Available to Ingredion	$ 102.6	$ 95.1	$ 175.2	$ 205.8
Weighted average number of shares outstanding, diluted	76.0	78.9	75.9	78.8
Diluted earnings per common share of Ingredion (in dollars per share)	$ 1.35	$ 1.20	$ 2.31	$ 2.61
Antidilutive securities excluded in calculation of diluted EPS:
Antidilutive securities excluded from computation of earnings per share amount		0.4	1.1	0.4