Accumulated Other Comprehensive Loss - Narrative (Details) - USD ($) $ in Millions	3 Months Ended
Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2021
Accumulated Other Comprehensive Income (Loss) [Line Items]
Estimate of gains related to foreign currency exchange contracts during the next 12 months	$ 3
Accumulated other comprehensive loss	640		$ 745
Estimated interest expense related to settled interest rate hedge contracts during the next twelve months	18
Foreign currency translation adjustment, tax	22
Foreign currency translation adjustment	67	$ 32
Foreign currency forward exchange contracts \| Indian Rupee
Accumulated Other Comprehensive Income (Loss) [Line Items]
Notional amount of derivatives	317		341
Total fair value of cash flow hedge derivatives	4		6
Treasury Lock
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive loss	$ 142		$ 145

Other Comprehensive Income (Loss), Net Investment Hedge, Gain (Loss), After Reclassification And Tax

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Other Comprehensive Income (Loss), Net Investment Hedge, Gain (Loss), After Reclassification, Tax

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Accumulated change in equity from transactions and other events and circumstances from non-owner sources, net of tax effect, at period end. Excludes Net Income (Loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners. Includes foreign currency translation items, certain pension adjustments, unrealized gains and losses on certain investments in debt and equity securities, other than temporary impairment (OTTI) losses related to factors other than credit losses on available-for-sale and held-to-maturity debt securities that an entity does not intend to sell and it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis, as well as changes in the fair value of derivatives related to the effective portion of a designated cash flow hedge.

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Net fair value of all derivative instruments designated as cash flow hedging instruments, which is ordinarily reflected within other comprehensive income.

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Nominal or face amount used to calculate payment on derivative.

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The estimated net amount of unrealized gains or losses on foreign currency cash flow hedges at the reporting date expected to be reclassified to earnings within the next 12 months.

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The estimated net amount of unrealized gains or losses on interest rate cash flow hedges as of the balance sheet date expected to be reclassified to earnings within the next twelve months.

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