Fair Value of Financial Instruments - Schedule of Carrying Amounts and Estimated Fair Values of Financial Assets and Liabilities (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022
Fair value disclosure
Loss on equity securities	$ 0	$ 83	$ 22	$ 83
Fair Value, Inputs, Level 1 | Carrying Amount
Fair value disclosure
Equity securities	0		0		$ 22
Fair Value, Inputs, Level 1 | Fair Value
Fair value disclosure
Equity securities	0		0		22
Fair Value Inputs, Level 2 | Carrying Amount
Fair value disclosure
Long-term debt, excluding finance lease and other obligations	19,604		19,604		20,255
Fair Value Inputs, Level 2 | Fair Value
Fair value disclosure
Long-term debt, excluding finance lease and other obligations	14,163		14,163		17,309
Fair Value, Inputs, Level 3 | Carrying Amount
Fair value disclosure
Indemnifications related to the sale of the Latin American business	86		86		86
Fair Value, Inputs, Level 3 | Fair Value
Fair value disclosure
Indemnifications related to the sale of the Latin American business	$ 86		$ 86		$ 86