
	Ally Financial Inc., previously known as&nbsp;GMAC Inc.&nbsp;(an acronym for&nbsp;General Motors Acceptance Corporation), is a&nbsp;bank holding company headquartered in&nbsp;Detroit,&nbsp;Michigan,&nbsp;United States&nbsp;at Tower 200 of the&nbsp;Renaissance Center.

	The bank has more than 15 million customers worldwide and provides a range of financial services including auto financing, insurance, mortgage services, and online banking. In 2009, Ally employed 18,900 people. In 2008, the firm provided financing to 75% of the 6,450&nbsp;General Motors&nbsp;dealers.
