Fair Value of Financial Instruments (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Level 2 | Carrying Amount
Liabilities measured on a recurring basis
Liabilities-Long-term debt, excluding finance leases and other obligations	$ 8,724	$ 7,805
Level 2 | Fair Value
Liabilities measured on a recurring basis
Liabilities-Long-term debt, excluding finance leases and other obligations	6,418	6,581
Level 3 | Carrying Amount
Liabilities measured on a recurring basis
Indemnifications related to the sale of the Latin American business(1)	86	86
Level 3 | Fair Value
Liabilities measured on a recurring basis
Indemnifications related to the sale of the Latin American business(1)	$ 86	$ 86