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Long-Term Debt Second Lien Term Loan Facility (Narrative) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2009
Debt Instrument [Line Items]
2009 GM Settlement and Commercial Agreement, Early Payment Discount	1.00%
2009 GM Settlement and Commercial Agreement, Second Lien Term Loan	$ 100.0

X

- Definition

Represents the early payment discount provided to GM as part of the 2009 Settlement and Commercial Agreement between AAM and GM in which GM agreed to payment terms of Net 10 days in exchange for the aforementioned early payment discount.

+ References

No definition available.

+ Details

Name:	axl_A2009GmSettlementAndCommercialAgreementEarlyPaymentDiscount
Namespace Prefix:	axl_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Represents the amount of the Second Lien Term Loan entered into with GM as part of the 2009 Settlement and Commercial Agreement between AAM and GM.

+ References

No definition available.

+ Details

Name:	axl_A2009GmSettlementAndCommercialAgreementSecondLienTermLoan
Namespace Prefix:	axl_
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	duration

X

- Details

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