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Segment Reporting - Additional Information (Detail) (USD $)
In Millions, unless otherwise specified
3 Months Ended
Mar. 31, 2015
Segment
Mar. 31, 2014
Segment Reporting Information [Line Items]    
Number of reportable segments 5us-gaap_NumberOfReportableSegments  
Stock-based compensation expense $ 36us-gaap_ShareBasedCompensation $ 35us-gaap_ShareBasedCompensation
North America Segment | Scenario, Previously Reported    
Segment Reporting Information [Line Items]    
Stock-based compensation expense (11)us-gaap_ShareBasedCompensation
/ us-gaap_StatementBusinessSegmentsAxis
= mdlz_NorthAmericaSegmentMember
/ us-gaap_StatementScenarioAxis
= us-gaap_ScenarioPreviouslyReportedMember
 
Corporate | Scenario, Adjustment    
Segment Reporting Information [Line Items]    
Stock-based compensation expense $ 11us-gaap_ShareBasedCompensation
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_CorporateNonSegmentMember
/ us-gaap_StatementScenarioAxis
= us-gaap_ScenarioAdjustmentMember