Fair Value of Financial Instruments - Carrying Amount and Fair Value of Debt (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2022	Dec. 31, 2021
Fair value disclosure
Loss on equity securities	$ (109)
Level 1 \| Carrying Amount
Fair value disclosure
Equity securities	22	$ 0
Level 1 \| Fair Value
Fair value disclosure
Equity securities	22	0
Level 2 \| Carrying Amount
Fair value disclosure
Long-term debt, excluding finance lease and other obligations	20,255	28,635
Interest rate swap contracts (see Note 15)	0	25
Level 2 \| Fair Value
Fair value disclosure
Long-term debt, excluding finance lease and other obligations	17,309	29,221
Interest rate swap contracts (see Note 15)	0	25
Level 3 \| Carrying Amount
Fair value disclosure
Indemnifications related to the sale of the Latin American business	86	0
Level 3 \| Fair Value
Fair value disclosure
Indemnifications related to the sale of the Latin American business	86	$ 0
Fair value measurements determined on a nonrecurring basis \| Level 2 \| Carrying Amount \| Disposal Group, Held-for-sale, Not Discontinued Operations
Fair value disclosure
Long-term debt, excluding finance lease and other obligations	1,400
Fair value measurements determined on a nonrecurring basis \| Level 2 \| Fair Value \| Disposal Group, Held-for-sale, Not Discontinued Operations
Fair value disclosure
Long-term debt, excluding finance lease and other obligations	$ 1,600

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Fair value, before effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities elected not to be offset. Excludes liabilities not subject to a master netting arrangement.

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- Definition

Amount of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).

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Amount of unrealized loss on investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).

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The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission.

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