Relationship with Former Parent and Related Entities (Tables)

3 Months Ended

Mar. 31, 2021

Related Party Transactions [Abstract]

Summary of amount due to and from related parties

Amounts due to and due from related parties are summarized in the below table:

Related Party	As of
(Dollars in millions)	March 31, 2021		December 31, 2020
Related party receivable	$	7	$	9
Related party payables	1		2
Related party short-term debt	—		16
Related party long-term debt	—		115