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Other Intangible Assets
12 Months Ended
Dec. 31, 2021
Goodwill And Intangible Assets Disclosure [Abstract]  
Other Intangible Assets

NOTE 10.    Other Intangible Assets:

Other intangible assets are summarized as follows:

 

December 31,

 

 

2021

 

 

2020

 

 

(in millions)

 

Finite-lived intangible assets:

 

 

 

 

 

 

 

Customer relationships

$

203

 

 

$

173

 

Noncompete agreements

 

49

 

 

 

38

 

Trademarks

 

32

 

 

 

24

 

Internal-use software licenses

 

21

 

 

 

21

 

Patents

 

3

 

 

 

3

 

 

 

308

 

 

 

259

 

Accumulated amortization

 

(107

)

 

 

(82

)

 

 

201

 

 

 

177

 

Indefinite-lived intangible assets:

 

 

 

 

 

 

 

Licenses

 

17

 

 

 

17

 

 

$

218

 

 

$

194

 

Amortization expense for finite-lived intangible assets was $51 million, $43 million and $28 million for the years ended December 31, 2021, 2020 and 2019, respectively.

Estimated amortization expense for finite-lived intangible assets for the next five years is summarized as follows:

Year

 

(in millions)

 

2022

$

53

 

2023

$

45

 

2024

$

36

 

2025

$

28

 

2026

$

23