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Income Taxes Noncurrent Deferred Tax Assets and Liabilities Recognized in the Balance Sheet (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Deferred tax assets (liabilities), net, noncurrent	$ 332.0	$ 356.6
Deferred tax assets, operating loss and tax credit carryforwards	275.8	274.3
Deferred tax assets, operating loss and tax credit carryforwards, not subject to expiration	74.5
Foreign [Member]
Deferred tax assets (liabilities), net, noncurrent	(5.2)	(6.7)
Domestic [Member]
Deferred tax assets (liabilities), net, noncurrent	$ 337.2	$ 363.3

X

- Definition

The sum of the tax effects as of the balance sheet date of the amount of excesses of tax deductions over gross income in a year which cannot be used on the tax returns in the current year but can be carried forward to reduce taxable income or income taxes payable in a future year, for which there must be sufficient tax-basis income to utilize a portion or all of the carryforward amount to realize the deferred tax asset. Amount also includes the tax effect as of the balance sheet date of the amount of future tax deductions arising from all unused tax credit carryforwards which have been reduced by a valuation allowance.

+ References

No definition available.

+ Details

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Namespace Prefix:	axl_
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	instant

X

- Definition

The amount of operating loss carryforwards and unused tax credit carryforwards available to reduce future taxable income which are not subject to expiration dates.

+ References

No definition available.

+ Details

Name:	axl_DeferredTaxAssetsOperatingLossAndTaxCreditCarryforwardsNotSubjectToExpiration
Namespace Prefix:	axl_
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Amount after allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards, net of deferred tax liability attributable to taxable temporary differences expected to be realized or consumed after one year (or the normal operating cycle, if longer).

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 740

-SubTopic 10

-Section 45

-Paragraph 4

-URI http://asc.fasb.org/extlink&oid=21917399&loc=d3e31917-109318



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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 740

-SubTopic 10

-Section 50

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32537-109319



Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 740

-SubTopic 10

-Section 45

-Paragraph 6

-URI http://asc.fasb.org/extlink&oid=21917399&loc=d3e31931-109318

+ Details

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Balance Type:	debit
Period Type:	instant