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Restructuring Reserve Narrative (Details) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2018 | Mar. 31, 2017
Restructuring Cost and Reserve [Line Items] |  |
Restructuring and acquisition-related costs | $ 18.3 | $ 16.0
Maximum [Member] |  |
Restructuring Cost and Reserve [Line Items] |  |
Restructuring and Related Cost, Expected Cost Remaining | 20.0 |
Minimum [Member] |  |
Restructuring Cost and Reserve [Line Items] |  |
Restructuring and Related Cost, Expected Cost Remaining | $ 10.0 |

X
- Definition Costs incurred for restructuring initiatives as well as expenses directly related to acquisition activity. + References No definition available. + Details
Name: | axl_Restructuringandacquisitionrelatedcosts
Namespace Prefix: | axl_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of expected cost remaining for the specified restructuring cost. + References No definition available. + Details
Name: | us-gaap_RestructuringAndRelatedCostExpectedCostRemaining1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- 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_RestructuringCostAndReserveLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_RangeAxis=us-gaap_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RangeAxis=us-gaap_MinimumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |