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Earnings Per Share - Additional Information (Detail) - shares
shares in Millions
12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]      
Antidilutive Mondelez International stock options excluded from the calculation of diluted EPS 8.5 7.8 5.1