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Summary of Spin-Off Costs within pre-tax Earnings (Detail) (USD $)
In Millions, unless otherwise specified
12 Months Ended 36 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2014
Spin-Off Transaction [Line Items]        
Spin-Off costs $ 35mdlz_SpinOffCosts $ 62mdlz_SpinOffCosts $ 1,053mdlz_SpinOffCosts $ 1,200mdlz_SpinOffCosts
Selling, general and administrative expenses        
Spin-Off Transaction [Line Items]        
Spin-Off costs 35mdlz_SpinOffCosts
/ us-gaap_IncomeStatementLocationAxis
= us-gaap_SellingGeneralAndAdministrativeExpensesMember
62mdlz_SpinOffCosts
/ us-gaap_IncomeStatementLocationAxis
= us-gaap_SellingGeneralAndAdministrativeExpensesMember
444mdlz_SpinOffCosts
/ us-gaap_IncomeStatementLocationAxis
= us-gaap_SellingGeneralAndAdministrativeExpensesMember
 
Interest and other expense, net        
Spin-Off Transaction [Line Items]        
Spin-Off costs     $ 609mdlz_SpinOffCosts
/ us-gaap_IncomeStatementLocationAxis
= us-gaap_NonoperatingIncomeExpenseMember