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GOODWILL AND OTHER INTANGIBLE ASSETS
 12 Months Ended
Dec. 31, 2021
Goodwill and Intangible Assets Disclosure [Abstract]  
GOODWILL AND OTHER INTANGIBLE ASSETS GOODWILL AND OTHER INTANGIBLE ASSETS
Changes in goodwill for the years ended December 31, 2021 and 2020 are as follows:
(in millions)Amount
Balance at December 31, 2019$289 
Additions5 
Balance at December 31, 2020$294 
Additions— 
Balance at December 31, 2021$294 
Other intangibles consists of customer contact lists with a weighted average amortization period of 10 years:
(in millions)December 31, 2021December 31, 2020
Gross carrying amount$98 $98 
Accumulated amortization(92)(80)
Net carrying amount$6 $18 
Amortization of intangible assets during the years ended December 31, 2021, 2020 and 2019 was $5 million for each period. We evaluate the remaining useful life of intangible assets quarterly to determine whether events and circumstances warrant a revision to the estimated remaining useful life. During the year ended December 31, 2021, we recognized a $7 million impairment of a customer relationship intangible due to higher than expected attrition.
Expense related to intangibles amortization in future periods as of December 31, 2021 is expected to be as follows:
Year ending December 31:Amount
(in millions)
2022$4 
20232 
2024 and thereafter— 
Total$6