Relationship with Former Parent and Related Entities (Tables)

12 Months Ended

Dec. 31, 2021

Related Party Transactions [Abstract]

Summary of amount due to and from related parties

Amounts due to and due from related party components as summarized in the below table:

(Dollars in millions)	As of December 31
RELATED PARTY	2021		2020
Related party receivable	$	6	$	9
Related party payables	$	1	$	2
Related party short term debt	$	—	$	16
Related party long-term debt	$	—	$	115