Earnings per Share (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Earnings Per Share [Abstract]
Net earnings	$ 545	$ 804	$ 1,288	$ 1,777
Noncontrolling interest earnings	(1)	(1)	(8)	(7)
Net earnings attributable to Mondelēz International	$ 544	$ 803	$ 1,280	$ 1,770
Weighted-average shares for basic EPS (in shares)	1,431	1,445	1,432	1,447
Plus incremental shares from assumed conversions of stock options and long-term incentive plan shares (in shares)	8	13	10	13
Weighted-average shares for diluted EPS (in shares)	1,439	1,458	1,442	1,460
Basic earnings per share attributable to Mondelēz International (in dollars per share)	$ 0.38	$ 0.56	$ 0.89	$ 1.22
Diluted earnings per share attributable to Mondelēz International (in dollars per share)	$ 0.38	$ 0.55	$ 0.89	$ 1.21