Document and Entity Information Document (USD $)	12 Months Ended
	Dec. 31, 2012	Feb. 06, 2013	Jun. 30, 2012
Document Information [Line Items]
Entity Registrant Name	AMERICAN AXLE & MANUFACTURING HOLDINGS INC
Entity Central Index Key	0001062231
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Document Fiscal Year Focus	2012
Document Fiscal Period Focus	FY
Document Period End Date	Dec. 31, 2012
Amendment Flag	false
Document Type	10-K
Entity Well-known Seasoned Issuer	Yes
Entity Public Float			$ 718,696,062
Entity Common Stock, Shares Outstanding		74,839,567
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No