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Earnings per Share - Narrative (Details) - shares
shares in Millions
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Stock options      
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]      
Antidilutive Mondelēz International stock options excluded from the calculation of diluted EPS (in shares) 2.9 3.0 3.1