Goodwill	9 Months Ended
Sep. 30, 2020
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill	Goodwill We had Goodwill of $1.9 billion at September 30, 2020, which includes $1.3 billion related to GM Financial's North America reporting unit. Since December 31, 2019, the COVID-19 pandemic has caused material disruption to businesses, resulting in an economic slowdown. The economic and social uncertainty resulting from the COVID-19 pandemic indicated that it was more likely than not that a goodwill impairment existed at March 31, 2020 for GM Financial's North America reporting unit. Therefore, in the three months ended March 31, 2020, we performed an event-driven goodwill impairment test for GM Financial's North America reporting unit and determined no goodwill impairment existed. The fair value of GM Financial's North America reporting unit at March 31, 2020 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 GM Financial's North America reporting unit at March 31, 2020 exceeded its carrying amount. Since March 31, 2020, we noted no further material deterioration in our economic performance or outlook that would indicate further testing of goodwill impairment was warranted. 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.

Goodwill

9 Months Ended

Sep. 30, 2020

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill We had Goodwill of $1.9 billion at September 30, 2020, which includes $1.3 billion related to GM Financial's North America reporting unit. Since December 31, 2019, the COVID-19 pandemic has caused material disruption to businesses, resulting in an economic slowdown. The economic and social uncertainty resulting from the COVID-19 pandemic indicated that it was more likely than not that a goodwill impairment existed at March 31, 2020 for GM Financial's North America reporting unit. Therefore, in the three months ended March 31, 2020, we performed an event-driven goodwill impairment test for GM Financial's North America reporting unit and determined no goodwill impairment existed. The fair value of GM Financial's North America reporting unit at March 31, 2020 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 GM Financial's North America reporting unit at March 31, 2020 exceeded its carrying amount. Since March 31, 2020, we noted no further material deterioration in our economic performance or outlook that would indicate further testing of goodwill impairment was warranted. 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.