Fair Value of Financial Instruments (Tables)

9 Months Ended

Sep. 30, 2022

Fair Value Disclosures [Abstract]

Schedule of carrying amounts and estimated fair values of long-term debt, excluding capital lease obligations, and input levels to determine fair values

The following table presents the carrying amounts and estimated fair values of our financial liabilities as of September 30, 2022 and December 31, 2021, as well as the input level used to determine the fair values indicated below:

		September 30, 2022			December 31, 2021
	Input Level	Carrying Amount		Fair Value	Carrying Amount	Fair Value
		(Dollars in millions)
Liabilities-Long-term debt, excluding finance leases	2	$	7,804	6,572	10,103	10,090
Indemnifications related to the sale of the Latin American business	3	$	86	86	—	—