Goodwill

The excess of the purchase price paid by GM over the fair value of the assets and liabilities acquired in our merger was recorded as goodwill of $1.1 billion, which was allocated to the North America reporting unit.

During 2013, we completed the acquisition of Ally Financial's European and Latin American auto finance and financial services operations. The aggregate consideration for these acquisitions was $3.3 billion. Purchase accounting for the acquisitions resulted in goodwill of $138 million, which was allocated to the Latin America reporting unit.

We performed goodwill impairment testing as of October 1, 2014, in accordance with the policy described in Note 1 - "Summary of Significant Accounting Policies - Goodwill." The impairment testing indicated no impairment in any reporting unit.

The following table summarizes the changes in the carrying amounts of goodwill by segment (in millions):



	Years Ended December 31,
	2014								2013						2012
	North America			International^(a)		Total			North America		International^(a)		Total		North America
Balance at beginning of period	$	1,108		$	132	$	1,240		$	1,108	$	—	$	1,108	$	1,108
Acquisition	—			6		6			—		132		132		—
Foreign currency translation	(2		)	—		(2		)	—		—		—		—
Balance at end of period	$	1,106		$	138	$	1,244		$	1,108	$	132	$	1,240	$	1,108

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(a)	See Note 2 - "Acquisition of Ally Financial International Operations" for further discussion. Goodwill increased $6 million during 2014 due to certain post-closing adjustments to the purchase price.