Other Financial Data - Schedule of Other Current Assets (Details) - USD ($) $ in Millions	Sep. 30, 2020	Dec. 31, 2019
Other Financial Data [Abstract]
Cost to fulfill contracts with customers	$ 220	$ 335
Prepaid expenses	116	97
Taxes receivable	131	88
Other	58	82
Total	$ 525	602
Receivables from divested business		$ 4

Other Financial Data [Abstract]

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Other Tax Assets, Current

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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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Amount classified as accounts, notes and loans receivable attributable to disposal group held for sale or disposed of.

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Amount of current assets classified as other.

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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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