Goodwill

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



	Three Months Ended March 31,
	2020									2019
	North America			International			Total			North America		International		Total
Beginning balance	$	1,105		$	80		$	1,185		$	1,105	$	81	$	1,186
Foreign currency translation	(1		)	(16		)	(17		)	—		1		1
Ending balance	$	1,104		$	64		$	1,168		$	1,105	$	82	$	1,187

Since December 31, 2019, the COVID-19 pandemic has resulted in a widespread health crisis that has adversely affected businesses, economies and financial markets worldwide, placed constraints on the operations of businesses, decreased consumer mobility and activity, and caused significant economic volatility in the United States and international debt and equity markets. The unprecedented economic and social uncertainty resulting from the COVID-19 outbreak indicated that it was more likely than not that goodwill impairment might exist at March 31, 2020 for our North America reporting unit. Therefore, at March 31, 2020, we performed an event-driven goodwill impairment test for our North America reporting unit and determined no goodwill impairment exists.

The fair value of our North America reporting unit was determined based on valuation techniques using the best available information, primarily discounted cash flow projections. We make significant assumptions and estimates about the extent and timing of future cash flows. There can be no assurance that anticipated financial results will be achieved. Under multiple scenarios, including fully weighting the downside cash flow scenario, the estimated fair value of our North America reporting unit exceeded its carrying amount.

Future goodwill impairment could be recognized should economic uncertainty continue, thereby resulting in a prolonged economic slowdown and a corresponding decline in the fair value of our reporting units.