|3 Months Ended
Mar. 31, 2022
|Goodwill and Intangible Assets Disclosure [Abstract]
Our intangible assets include the following:
Indefinite Life Intangible Assets
We have identified our FCC licenses and XM and Pandora trademarks as indefinite life intangible assets after considering the expected use of the assets, the regulatory and economic environment within which they are used and the effects of obsolescence on their use.
We hold FCC licenses to operate our satellite digital audio radio service and provide ancillary services. Each of the FCC licenses authorizes us to use radio spectrum, a reusable resource that does not deplete or exhaust over time.
Our annual impairment assessment of our identifiable indefinite lived intangible assets is performed as of the fourth quarter of each year. An assessment is performed at other times if an event occurs or circumstances change that would more likely than not reduce the fair value of the asset below its carrying value. If the carrying value of the intangible assets exceeds its fair value, an impairment loss is recognized in an amount equal to that excess. As of March 31, 2022, there were no indicators of impairment, and no impairment loss was recognized for intangible assets with indefinite lives during the three months ended March 31, 2022 and 2021.
Definite Life Intangible Assets
Amortization expense for all definite life intangible assets was $39 and $38 for the three months ended March 31, 2022 and 2021, respectively. There were no retirements of definite lived intangible assets during the three months ended March 31, 2022 and 2021.
The expected amortization expense for each of the fiscal years 2022 through 2026 and for periods thereafter is as follows: