v3.25.2
Goodwill and Other Intangible Assets (Tables)
 6 Months Ended
Jun. 30, 2025
Goodwill and Intangible Assets Disclosure [Abstract]  
Schedule of Goodwill [Table Text Block] The following table provides a reconciliation of changes in goodwill for the six months ended June 30, 2025:
Consolidated
(in millions)
Balance at December 31, 2024$172.0 
Foreign currency translation2.8 
Balance at June 30, 2025$174.8 
Schedule of Finite-Lived Intangible Assets [Table Text Block] The following table provides a reconciliation of the gross carrying amount and associated accumulated amortization for AAM's other intangible assets, which are all subject to amortization:
June 30,December 31,
20252024
Gross Carrying AmountAccumulated AmortizationNet Carrying AmountGross Carrying AmountAccumulated AmortizationNet Carrying Amount
(in millions)
Capitalized computer software$61.1 $(54.3)$6.8 $60.9 $(52.6)$8.3 
Customer platforms856.2 (523.3)332.9 856.2 (491.6)364.6 
Customer relationships53.0 (28.2)24.8 53.0 (26.5)26.5 
Technology and other149.5 (98.1)51.4 153.8 (96.5)57.3 
Total$1,119.8 $(703.9)$415.9 $1,123.9 $(667.2)$456.7