Other Financial Data - Schedule of Other Current Assets (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Other Financial Data [Abstract]
Costs to fulfill contracts with customers	$ 424	$ 370
Prepaid expenses	135	100
Taxes receivable	43	35
Assets held for sale	1	354
Other	156	137
Total	$ 759	$ 996

Other Financial Data [Abstract]

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Amount classified as assets attributable to disposal group held for sale or disposed of, expected to be disposed of within one year or the normal operating cycle, if longer.

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Amount, after allowance for credit loss, of right to consideration in exchange for good or service transferred to customer when right is conditioned on something other than passage of time, 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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Amount of current assets classified as other.

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