Borrowings and Other Debt Obligations (Tables)

12 Months Ended

Dec. 31, 2021

Debt Disclosure [Abstract]

Schedule of Debt

Total debt carrying values consisted of the following:

	December 31,
(Dollars in millions)	2021		2020
Finance Lease Current Portion	$	12	$	9
Other Short-term Financing Arrangements	—		4
Short-term Borrowings	$	12	$	13
11.00% Exit Notes due 2024	300		2,098
8.75% Senior Secured Notes due 2024	—		455
6.5% Senior Secured Notes due 2028	488		—
8.625% Senior Notes due 2030	$	1,584	$	—
Finance Lease Long-term Portion	44		48
Long-term Debt	$	2,416	$	2,601

Schedule of maturities of long-term debt

The following is a summary of scheduled debt maturities by year:

(Dollars in millions)
2022	$	12
2023	11
2024	310
2025	10
2026	10
Thereafter	2,103
Total Debt Maturities	$	2,456
Unamortized Debt Issuance and Discount	$	(28)
Total Debt Carrying Value	$	2,428