v2.4.0.6

Financial Instruments and Fair Value Measurements (Details 2) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2010	Dec. 31, 2009
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation
Balance at beginning of period	$ 140	$ 82
Total gains and losses (realized/unrealized) included in cost of goods sold	793	218
Total gains and losses (realized/unrealized) included in foreign exchange gains (losses)	(1)	3
Purchases, issuances and settlements	(413)	(253)
Transfers into Level 3	65
Transfers out of Level 3	(13)
Transfers in (out) of Level 3		90
Balance at end of period	571	140
Changes in unrealized gains and (losses) relating to assets and liabilities included in Cost of goods sold	660	125
Changes in unrealized gains and (losses) relating to assets and liabilities included in Foreign exchange gains (losses)	(1)	3
Derivatives, Net
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation
Balance at beginning of period	31	(101)
Total gains and losses (realized/unrealized) included in cost of goods sold	385	117
Total gains and losses (realized/unrealized) included in foreign exchange gains (losses)	(1)	3
Purchases, issuances and settlements	(156)	(68)
Transfers into Level 3	59
Transfers out of Level 3	(11)
Transfers in (out) of Level 3		80
Balance at end of period	307	31
Changes in unrealized gains and (losses) relating to assets and liabilities included in Cost of goods sold	421	59
Changes in unrealized gains and (losses) relating to assets and liabilities included in Foreign exchange gains (losses)	(1)	3
Readily Marketable Inventories.
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation
Balance at beginning of period	109	183
Total gains and losses (realized/unrealized) included in cost of goods sold	408	101
Purchases, issuances and settlements	(257)	(185)
Transfers into Level 3	6
Transfers out of Level 3	(2)
Transfers in (out) of Level 3		10
Balance at end of period	264	109
Changes in unrealized gains and (losses) relating to assets and liabilities included in Cost of goods sold	$ 239	$ 66

X

- Details

Name:	bg_FairValueAssetsLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward
Namespace Prefix:	bg_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

This element represents total gains or losses for the period (realized and unrealized), arising from assets and liabilities measured at fair value on a recurring basis using unobservable inputs (Level 3), which are included in cost of sales.

+ References

No definition available.

+ Details

Name:	bg_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetsLiabilitiesGainLossIncludedInCostOfSales
Namespace Prefix:	bg_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

This element represents total gains or losses for the period (realized and unrealized), arising from assets and liabilities measured at fair value on a recurring basis using unobservable inputs (Level 3), which are included in foreign exchange gains (losses).

+ References

No definition available.

+ Details

Name:	bg_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetsLiabilitiesGainLossIncludedInForeignExchangeGainsLosses
Namespace Prefix:	bg_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

This element represents purchases, sales, issuances, and settlements (net) which have taken place during the period in relation to assets and liabilities measured at fair value on a recurring basis using unobservable inputs (Level 3).

+ References

No definition available.

+ Details

Name:	bg_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetsLiabilitiesPurchasesSalesIssuancesSettlements
Namespace Prefix:	bg_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

This element represents transfers into assets and liabilities measured at fair value on a recurring basis using unobservable inputs (Level 3) which have taken place during the period.

+ References

No definition available.

+ Details

Name:	bg_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetsLiabilitiesTransfersIntoLevel3
Namespace Prefix:	bg_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

This element represents transfers into and out of assets and liabilities measured at fair value on a recurring basis using unobservable inputs (Level 3) which have taken place during the period.

+ References

No definition available.

+ Details

Name:	bg_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetsLiabilitiesTransfersNet
Namespace Prefix:	bg_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

This element represents transfers out of assets and liabilities measured at fair value on a recurring basis using unobservable inputs (Level 3) which have taken place during the period.

+ References

No definition available.

+ Details

Name:	bg_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetsLiabilitiesTransfersOutOfLevel3
Namespace Prefix:	bg_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

This element represents total unrealized gains or losses for the period, arising from assets and liabilities measured at fair value on a recurring basis using unobservable inputs (Level 3), which are included in cost of sales and which are still held at the reporting date.

+ References

No definition available.

+ Details

Name:	bg_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetsLiabilitiesUnrealizedGainLossIncludedInCostOfSales
Namespace Prefix:	bg_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

This element represents total unrealized gains or losses for the period, arising from assets and liabilities measured at fair value on a recurring basis using unobservable inputs (Level 3), which are included in foreign exchange gains (losses) and which are still held at the reporting date.

+ References

No definition available.

+ Details

Name:	bg_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetsLiabilitiesUnrealizedGainLossIncludedInForeignExchangeGainsLosses
Namespace Prefix:	bg_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

This element represents assets and liabilities measured at fair value using significant unobservable inputs (Level 3) which is required for reconciliation purposes of beginning and ending balances.

+ References

No definition available.

+ Details

Name:	bg_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetsLiabilitiesValue
Namespace Prefix:	bg_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant