Other Financial Information - Other Current Assets (Details) - USD ($) $ in Millions	Sep. 30, 2024	Dec. 31, 2023
Prepaid Expenses and Other Current Assets [Abstract]
Prepaid expenses	$ 357	$ 395
Income tax receivable	16	273
Materials, supplies and inventory	173	209
Contract assets	13	19
Assets held for sale	86	104
Other	19	14
Total other current assets	871	1,223
Acquisition Costs
Prepaid Expenses and Other Current Assets [Abstract]
Contract costs	101	107
Fulfillment Costs
Prepaid Expenses and Other Current Assets [Abstract]
Contract costs	$ 106	$ 102

Amount of assets held-for-sale that are not part of a disposal group, expected to be sold within a year or the normal operating cycle, if longer.

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Amount, after accumulated amortization and accumulated impairment loss, of asset recognized from cost incurred to obtain or fulfill contract with customer; classified as current.

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Carrying amount due within one year of the balance sheet date (or one operating cycle, if longer) from tax authorities as of the balance sheet date representing refunds of overpayments or recoveries based on agreed-upon resolutions of disputes.

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The carrying amount of capitalized costs of materials, supplies, and other assets, which are not included in inventory but used in production.

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Amount of current assets classified as other.

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Amount of other miscellaneous assets expected to be realized or consumed within one year or operating cycle, if longer.

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Net amount of other deferred costs capitalized at the end of the reporting period. Does not include deferred finance costs or deferred acquisition costs of insurance companies.

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Amount of asset related to consideration paid in advance for costs that provide economic benefits within a future period of one year or the normal operating cycle, if longer.

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