|9 Months Ended|
Sep. 30, 2018
|Goodwill and Other Intangible Assets|
|Goodwill and Other Intangible Assets||
(10) Intangible Assets
Goodwill and Intangible Assets Not Subject to Amortization
SIRIUS XM recorded $3 million of goodwill related to an immaterial acquisition during the three months ended September 30, 2018. There were no other changes in the carrying amounts of goodwill or other intangible assets not subject to amortization during the nine months ended September 30, 2018.
Intangible Assets Subject to Amortization
Amortization expense for intangible assets with finite useful lives was $170 million and $167 million for the three months ended September 30, 2018 and 2017, respectively, and $492 million and $448 million for the nine months ended September 30, 2018 and 2017, respectively. Based on its amortizable intangible assets as of September 30, 2018, Liberty expects that amortization expense will be as follows for the next five years (amounts in millions):
The entire disclosure for goodwill and intangible assets.
Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef