Related Party Transactions (Details) - USD ($)	12 Months Ended
Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Related Party Transaction [Line Items]
Investments in retail finance joint ventures	$ 800,000	$ 4,500,000	$ 3,800,000
Dividends from related parties	$ 78,500,000	44,500,000
Rabobank
Related Party Transaction [Line Items]
Ownership interest of controlling interest	51.00%
Finance joint ventures
Related Party Transaction [Line Items]
Investments in retail finance joint ventures	$ 0	2,800,000	0
TAFE
Related Party Transaction [Line Items]
Cost method investment, ownership percentage	23.75%
Beneficial ownership of related parties (in shares)	12,150,152
Beneficial ownership of related parties, maximum shares allowed per letter agreement (in shares)	12,170,290
Purchases from related party	$ 102,000,000	128,500,000	129,200,000
Revenue from related parties	1,200,000	1,100,000	2,200,000
Dividends from related parties	1,800,000	1,600,000	1,700,000
Praxair Inc
Related Party Transaction [Line Items]
Purchases from related party	1,500,000	2,000,000	600,000
PPG Industries, Inc.
Related Party Transaction [Line Items]
Purchases from related party	$ 7,200,000	$ 3,100,000	$ 3,500,000

Beneficial Ownership of Related Parties, Maximum Shares Allowed Per Letter Agreement

No definition available.

Name:	agco_BeneficialOwnershipofRelatedPartiesMaximumSharesAllowedPerLetterAgreement
Namespace Prefix:	agco_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

Beneficial Ownership of Related Parties, Shares

+ References

No definition available.

+ Details

Name:	agco_BeneficialOwnershipofRelatedPartiesShares
Namespace Prefix:	agco_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

Cost Method Investment, Ownership Percentage

+ References

No definition available.

+ Details

Name:	agco_CostMethodInvestmentOwnershipPercentage
Namespace Prefix:	agco_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Dividends from Related Parties

+ References

No definition available.

+ Details

Name:	agco_DividendsfromRelatedParties
Namespace Prefix:	agco_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Ownership Interest of Controlling Interest

+ References

No definition available.

+ Details

Name:	agco_OwnershipInterestOfControllingInterest
Namespace Prefix:	agco_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

The cash outflow associated with the purchase of or advances to an equity method investments, which are investments in joint ventures and entities in which the entity has an equity ownership interest normally of 20 to 50 percent and exercises significant influence.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 13
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3213-108585

+ Details

Name:	us-gaap_PaymentsToAcquireEquityMethodInvestments
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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

- Definition

Purchases during the period (excluding transactions that are eliminated in consolidated or combined financial statements) with related party.

+ References

No definition available.

+ Details

Name:	us-gaap_RelatedPartyTransactionPurchasesFromRelatedParty
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Amount of revenue, fees and commissions earned from transactions between (a) a parent company and its subsidiaries; (b) subsidiaries of a common parent; (c) an entity and trusts for the benefit of employees, for example, but not limited to, pension and profit-sharing trusts that are managed by or under the trusteeship of the entity's management; (d) an entity and its principal, owners, management, or members of their immediate families; and (e) affiliates.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.1(e))
-URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 946
-SubTopic 225
-Section S99
-Paragraph 1
-Subparagraph (SX 210.6-07.1(c))
-URI http://asc.fasb.org/extlink&oid=6488393&loc=d3e606610-122999

+ Details

Name:	us-gaap_RevenueFromRelatedParties
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Details

Name:	us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=agco_RabobankMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=agco_RetailFinanceJointVentureMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=agco_TafeMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=agco_PraxairIncMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=agco_PpgIndustriesIncMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: