Debt (Tables)

9 Months Ended

Sep. 30, 2021

Debt Disclosure [Abstract]

Schedule of debt

The Company’s short and long-term debt consists of the following:

	As of
(Dollars in millions)	September 30, 2021		December 31, 2020
Short-Term Debt:
Short-term borrowings	$	4	$	4
Long-Term Debt:
4.00% Convertible Senior Notes due 2024 (Carrying value)	177		170
Other long-term borrowings	8		7
Total Debt	$	189	$	181

The following table presents the outstanding principal amount and carrying value of the Notes:

4.00% Convertible Senior Notes due 2024	As of
(Dollars in millions)	September 30, 2021		December 31, 2020
Principal amount (face value)	$	207	$	207
Unamortized issuance cost	(3)		(4)
Unamortized debt discount	(27)		(33)
Net Carrying value	$	177	$	170