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Interest Expense Relating to Debt including Results from Discontinued Operations (Parenthetical) (Detail) (USD $) In Billions, unless otherwise specified	0 Months Ended		9 Months Ended
	Jun. 04, 2012	Jul. 18, 2012	Oct. 01, 2012
Senior unsecured notes
Debt Instrument [Line Items]
Debt transferred in Spin-Off	$ 6.0mdlz_DebtTransferredInSpinOff / us-gaap_DebtInstrumentAxis = mdlz_SeniorUnsecuredNotesMember
Exchanged Debt
Debt Instrument [Line Items]
Debt transferred in Spin-Off		3.6mdlz_DebtTransferredInSpinOff / us-gaap_DebtInstrumentAxis = mdlz_ExchangeOfDebtMember
7.55% senior unsecured notes
Debt Instrument [Line Items]
Debt transferred in Spin-Off			$ 0.4mdlz_DebtTransferredInSpinOff / us-gaap_DebtInstrumentAxis = mdlz_SevenPointFiveFivePercentSeniorUnsecuredNotesMember

X

- Definition

Debt Transferred in Spin Off

+ References

No definition available.

+ Details

Name:	mdlz_DebtTransferredInSpinOff
Namespace Prefix:	mdlz_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Details

Name:	us-gaap_DebtInstrumentLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	us-gaap_DebtInstrumentAxis=mdlz_ExchangeOfDebtMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_DebtInstrumentAxis=mdlz_SeniorUnsecuredNotesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_DebtInstrumentAxis=mdlz_SevenPointFiveFivePercentSeniorUnsecuredNotesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: