Stock Compensation Plans (Schedule Of SSAR Exercise Price Range, Number Of Shares, Weighted Average Exercise Price And Remaining Contractual Lives) (Details) (USD $)	3 Months Ended
Mar. 31, 2015	Dec. 31, 2014
$21.45 - $32.01 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Range of Exercise Prices, lower limit, dollars per share	$ 21.45
Range of Exercise Prices, upper limit, dollars per share	$ 32.01
$33.65 - $43.88 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Range of Exercise Prices, lower limit, dollars per share	$ 33.65
Range of Exercise Prices, upper limit, dollars per share	$ 43.88
$47.89 - $63.64 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Range of Exercise Prices, lower limit, dollars per share	$ 47.89
Range of Exercise Prices, upper limit, dollars per share	$ 63.64
Stock Appreciation Rights (SARs) [Member]
SSARs Outstanding
SSARs Outstanding, shares	1,435,874	1,220,824
Weighted Average Remaining Contractual Life, years	5 years
SSARs Exercisable
Number of Shares	694,227
Weighted Average Exercise Price, dollars per share	$ 48.10
Stock Appreciation Rights (SARs) [Member] \| $21.45 - $32.01 [Member]
SSARs Outstanding
SSARs Outstanding, shares	34,875
Weighted Average Remaining Contractual Life, years	1 year
Weighted Average Exercise Price, dollars per share	$ 22.47
SSARs Exercisable
Number of Shares	34,875
Weighted Average Exercise Price, dollars per share	$ 22.47
Stock Appreciation Rights (SARs) [Member] \| $33.65 - $43.88 [Member]
SSARs Outstanding
SSARs Outstanding, shares	445,725
Weighted Average Remaining Contractual Life, years	5 years 6 months 0 days
Weighted Average Exercise Price, dollars per share	$ 41.18
SSARs Exercisable
Number of Shares	119,800
Weighted Average Exercise Price, dollars per share	$ 33.83
Stock Appreciation Rights (SARs) [Member] \| $47.89 - $63.64 [Member]
SSARs Outstanding
SSARs Outstanding, shares	955,274
Weighted Average Remaining Contractual Life, years	4 years 7 months 6 days
Weighted Average Exercise Price, dollars per share	$ 53.52
SSARs Exercisable
Number of Shares	539,552
Weighted Average Exercise Price, dollars per share	$ 52.92

The number of share-based awards that were exercisable as of the reporting date, excluding options.

No definition available.

Name:	agco_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentOtherThanOptionsExercisableNumber
Namespace Prefix:	agco_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Details

Name:	agco_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsExercisableAbstract
Namespace Prefix:	agco_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

The weighted average exercise price of share-based awards that were exercisable as of the reporting date, excluding options.

+ References

No definition available.

+ Details

Name:	agco_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsExercisableWeightedAverageExercisePrice
Namespace Prefix:	agco_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	instant

- Details

Name:	agco_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsOutstandingAbstract
Namespace Prefix:	agco_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Weighted average exercise price for equity-based awards excluding options.

+ References

No definition available.

+ Details

Name:	agco_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsOutstandingWeightedAverageExercisePrice
Namespace Prefix:	agco_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	instant

- Definition

The floor of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock settled appreciation rights and other required information pertaining to awards in the customized range.

+ References

No definition available.

+ Details

Name:	agco_ShareBasedCompensationSharesAuthorizedUnderStockSettledAppreciationRightsExercisePriceRangeLowerRangeLimit
Namespace Prefix:	agco_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	duration

- Definition

The ceiling of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock settled appreciation rights and other required information pertaining to awards in the customized range.

+ References

No definition available.

+ Details

Name:	agco_ShareBasedCompensationSharesAuthorizedUnderStockSettledAppreciationRightsExercisePriceRangeUpperRangeLimit
Namespace Prefix:	agco_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	duration

- Definition

Weighted average remaining contractual term for equity-based awards excluding options, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

+ Details

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsOutstandingWeightedAverageRemainingContractualTerms
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Details

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

- Definition

Number of equity instruments other than options outstanding, including both vested and non-vested instruments.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)(1)(i)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)(1)(ii)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

+ Details

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingNumber
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Details

Name:	us-gaap_AwardTypeAxis=us-gaap_StockAppreciationRightsSARSMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis=agco_StockSettledStockAppreciationRightPlanExercisePriceRangeOneMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis=agco_StocksettledstockappreciationrightplanexercisepricerangethreeMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis=agco_StockSettledStockAppreciationRightPlanExercisePriceRangeTwoMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: