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Goodwill and Intangible Assets (Tables)
 12 Months Ended
Dec. 31, 2021
Goodwill and Intangible Assets Disclosure [Abstract]  
Summary of Goodwill

 

GOODWILL (Dollars in millions)

 

2021

 

 

2020

 

Carrying amount at beginning of year

 

$

1,398

 

 

$

1,388

 

Translation differences

 

 

(11

)

 

 

10

 

Carrying amount at end of year

 

$

1,387

 

 

$

1,398

 
Schedule of Amortizable Intangibles

 

AMORTIZABLE INTANGIBLES (Dollars in millions)

 

2021

 

 

2020

 

Gross carrying amount

 

$

398

 

 

$

407

 

Accumulated amortization

 

 

(390

)

 

 

(393

)

Carrying value

 

$

8

 

 

$

14