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Period between issuance and maturity of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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Fair value, before effects of master netting arrangements, of a financial asset or other 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 assets elected not to be offset. Excludes assets not subject to a master netting arrangement.

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- Definition

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

Fair value of the assets less the liabilities of a derivative or group of derivatives.

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Amount of increase (decrease) in the fair value of derivatives recognized in the income statement.

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- Definition

Nominal or face amount used to calculate payment on derivative.

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- Definition

Amount of investment in equity security without readily determinable fair value.

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- Definition

Amount of cumulative loss from downward price adjustment on investment in equity security without readily determinable fair value.

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- Definition

Amount of impairment loss on investment in equity security without readily determinable fair value.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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- Definition

The amount of net gains or losses on foreign currency cash flow hedges reclassified during the period to earnings from accumulated other comprehensive income upon the hedged transaction affecting earnings.

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- Definition

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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- Definition

Fair value portion of liability contracts related to the exchange of different currencies, including, but not limited to, foreign currency options, forward (delivery or nondelivery) contracts, and swaps entered into.

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Amount of gain (loss) recognized in earnings in the period from the increase (decrease) in fair value of foreign currency derivatives not designated as hedging instruments.

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- Definition

Amount of realized and unrealized gain (loss) on investment.

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The total amount of investments that are intended to be held for an extended period of time (longer than one operating cycle).

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Per share amount received by subsidiary or equity investee for each share of common stock issued or sold in the stock transaction.

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No definition available.

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Amount of investments including trading securities, available-for-sale securities, held-to-maturity securities, and short-term investments classified as other and current.

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Amount of unrealized gain (loss) on investment.

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Fair Value Measurements - Additional Information (Details) $ / shares in Units, € in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2026 USD ($)	Jun. 30, 2025 USD ($)	Jun. 30, 2026 USD ($)	Jun. 30, 2025 USD ($)	Jun. 30, 2026 EUR (€)	May 31, 2026 $ / shares	Dec. 31, 2025 USD ($)	Aug. 31, 2025 EUR (€) instrument
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term investments	$ 445		$ 445				$ 320
Long-term investments	$ 577		$ 577				280
Debt securities, available-for-sale, term	5 years		5 years		5 years
Unrealized gains (losses)			$ 2	$ 1
Gains (losses) on minority equity investments, net			125	(258)
Net gains (losses) from foreign currency forward contracts	$ (70)	$ 151	(195)	200
Net accumulated gain on our foreign currency cash flow hedges gain (loss) reclassified to earnings, net	3		3
Carrying value of cost method investments	256		256				256
Cumulative unrealized downward adjustments	164		164
Fair Value, Nonrecurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impairment losses related to a minority investment			0	37
Foreign currency forward contracts
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Notional amount of derivatives	8,500		8,500
Net forward asset (liability)	11		11				(13)
Gross forward asset	66		66
Gross forward liability							31
Net accumulated gain on our foreign currency cash flow hedges before tax effect	39		39
Derivatives							13
Foreign currency forward contracts \| Designated as Hedging Instrument
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Notional amount of derivatives	960		960
Cross-currency interest rate swaps
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivatives	5		5				11
Cross-currency interest rate swaps \| Designated as Hedging Instrument
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Gain on derivative recognized in interest expense			1	3
Cross Currency Interest Rate Contract, 2022 Swaps \| Designated as Hedging Instrument
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Notional amount of derivatives \| €								€ 300
Fixed-to fixed cross currency interest rate swaps entered into \| instrument								2
Cross Currency Interest Rate Contract, 2025 Swap \| Designated as Hedging Instrument
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Notional amount of derivatives \| €					€ 220			€ 220
Derivatives	$ 5		5				$ 11
Global Business Travel Group
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Price per share to be acquired (in dollars per share) \| $ / shares						$ 9.50
Gains (losses) on minority equity investments, net			$ 125	(223)
Despegar.com Corp.
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Gains (losses) on minority equity investments, net				$ 2