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Financial Instruments and Fair Value Measurements - Net Notional Principal Amounts of Outstanding Derivative Instruments (Parenthetical) (Details)	9 Months Ended
	Sep. 30, 2024
Investments, Debt and Equity Securities [Abstract]
Maximum maturity period of outstanding derivatives are not designated as hedging instruments	90 days

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- Definition

Outstanding derivatives not designated as hedging instruments maximum maturity period.

+ References

No definition available.

+ Details

Name:	trip_OutstandingDerivativesNotDesignatedAsHedgingInstrumentsMaximumMaturityPeriod
Namespace Prefix:	trip_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

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- References

No definition available.

+ Details

Name:	us-gaap_InvestmentsDebtAndEquitySecuritiesAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration