XML 121 R100.htm IDEA: XBRL DOCUMENT v3.23.1

TAXATION - Company's subsidiaries (Details) ¥ in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2030	Dec. 31, 2029	Dec. 31, 2028	Dec. 31, 2027	Dec. 31, 2026	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022 CNY (¥)	Dec. 31, 2022 USD ($)	Dec. 31, 2021 CNY (¥)	Dec. 31, 2020 CNY (¥)	Dec. 31, 2019
Taxation
Applicable tax rate (as a percent)									25.00%	25.00%	25.00%	25.00%
Undistributed earnings deferred tax liability									¥ 0
Income tax expense									¥ 682	$ 99	¥ 270	¥ 355
Ctrip Computer Technology
Taxation
Applicable tax rate (as a percent)									15.00%	15.00%
Ctrip Travel Network
Taxation
Applicable tax rate (as a percent)									15.00%	15.00%
Ctrip Travel Information
Taxation
Applicable tax rate (as a percent)									15.00%	15.00%
Beijing Hujinxinrong Technology Co Ltd
Taxation
Applicable tax rate (as a percent)									15.00%	15.00%
Cayman
Taxation
Applicable tax rate (as a percent)									0.00%	0.00%
Hong Kong Profits Tax
Taxation
Applicable tax rate (as a percent)									16.50%	16.50%
PRC Corporate Income Tax
Taxation
Applicable tax rate (as a percent)									25.00%	25.00%
PRC Corporate Income Tax | Western region of China | Chengdu Ctrip
Taxation
Applicable tax rate approved (as a percent)	15.00%	15.00%	15.00%	15.00%	15.00%	15.00%	15.00%	15.00%	15.00%	15.00%	15.00%
PRC Corporate Income Tax | Western region of China | Chengdu Ctrip International
Taxation
Applicable tax rate approved (as a percent)	15.00%	15.00%	15.00%	15.00%	15.00%	15.00%	15.00%	15.00%	15.00%	15.00%	15.00%
PRC Corporate Income Tax | Western region of China | Chengdu Information
Taxation
Applicable tax rate approved (as a percent)	15.00%	15.00%	15.00%	15.00%	15.00%	15.00%	15.00%	15.00%	15.00%	15.00%	15.00%
PRC Corporate Income Tax | High new tech enterprises | Ctrip Computer Technology
Taxation
Applicable tax rate (as a percent)									15.00%	15.00%	15.00%	15.00%
PRC Corporate Income Tax | High new tech enterprises | Ctrip Travel Network
Taxation
Applicable tax rate (as a percent)									15.00%	15.00%	15.00%	15.00%
PRC Corporate Income Tax | High new tech enterprises | Qunar Software
Taxation
Applicable tax rate (as a percent)								15.00%	15.00%	15.00%	15.00%
PRC Corporate Income Tax | High new tech enterprises | Qunar Beijing
Taxation
Applicable tax rate (as a percent)								15.00%	15.00%	15.00%	15.00%
PRC Corporate Income Tax | High new tech enterprises | Ctrip Travel Information
Taxation
Applicable tax rate (as a percent)									15.00%	15.00%	15.00%	15.00%
PRC Corporate Income Tax | High new tech enterprises | Beijing Hujinxinrong Technology Co Ltd
Taxation
Applicable tax rate (as a percent)											15.00%	15.00%	15.00%
PRC Corporate Income Tax | High new tech enterprises | Shanghai Xielv Information Technology Co., Ltd
Taxation
Applicable tax rate (as a percent)								15.00%	15.00%	15.00%	15.00%
PRC Corporate Income Tax | High new tech enterprises | Ctrip Business Travel Information Service (Shanghai) Co., Ltd
Taxation
Applicable tax rate (as a percent)								15.00%	15.00%	15.00%	15.00%
Domestic country
Taxation
Income tax expense									¥ 476		¥ 373	¥ 528
Foreign country
Taxation
Income tax expense									¥ 206		¥ (103)	¥ (173)

X

- Definition

Represents applicable tax rate approved for future tax period.

+ References

No definition available.

+ Details

Name:	tcom_TaxRateApprovedForFutureTaxPeriod
Namespace Prefix:	tcom_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tax Rate Disclosure.

+ References

No definition available.

+ Details

Name:	tcom_TaxRateDisclosureLineItems
Namespace Prefix:	tcom_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Amount of deferred tax liability attributable to taxable temporary differences from undistributed earnings of subsidiary and other recognized entity not within country of domicile. Includes, but is not limited to, other basis differences.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 6
-URI https://asc.fasb.org/extlink&oid=121826272&loc=d3e32621-109319

+ Details

Name:	us-gaap_DeferredTaxLiabilitiesUndistributedForeignEarnings
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SAB Topic 6.I.Fact.4)
-URI https://asc.fasb.org/extlink&oid=122134291&loc=d3e330036-122817

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08(h)(2))
-URI https://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 12
-URI https://asc.fasb.org/extlink&oid=121826272&loc=d3e32687-109319

+ Details

Name:	us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SAB TOPIC 6.I.7)
-URI https://asc.fasb.org/extlink&oid=122134291&loc=d3e330036-122817

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 10
-URI https://asc.fasb.org/extlink&oid=121826272&loc=d3e32672-109319

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 22
-Subparagraph (h)
-URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e8736-108599

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08(h))
-URI https://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 250
-SubTopic 10
-Section 50
-Paragraph 9
-URI https://asc.fasb.org/extlink&oid=124431687&loc=d3e22663-107794

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 20
-Section 45
-Paragraph 2
-Subparagraph (a)
-URI https://asc.fasb.org/extlink&oid=123586238&loc=d3e38679-109324

Reference 7: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 220
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-04(9))
-URI https://asc.fasb.org/extlink&oid=120400993&loc=SL114874131-224263

Reference 8: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 250
-SubTopic 10
-Section 50
-Paragraph 8
-URI https://asc.fasb.org/extlink&oid=124431687&loc=d3e22658-107794

+ Details

Name:	us-gaap_IncomeTaxExpenseBenefit
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Details

Name:	dei_LegalEntityAxis=tcom_CtripComputerTechnologyMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	dei_LegalEntityAxis=tcom_CtripTravelNetworkMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	dei_LegalEntityAxis=tcom_CtripTravelInformationMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	dei_LegalEntityAxis=tcom_BeijingHujinxinrongTechnologyCoLtdMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_IncomeTaxAuthorityAxis=tcom_CaymanTaxMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_IncomeTaxAuthorityAxis=tcom_HongKongProfitsTaxMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_IncomeTaxAuthorityAxis=tcom_PRCCorporateIncomeTaxMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_StatementGeographicalAxis=tcom_WesternRegionOfChinaMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	dei_LegalEntityAxis=tcom_ChengduCtripMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	dei_LegalEntityAxis=tcom_ChengduCtripInternationalMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	dei_LegalEntityAxis=tcom_ChengduInformationTechnologyMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	tcom_EntityClassificationsSectorAndEntityAxis=tcom_HighNewTechEnterprisesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	dei_LegalEntityAxis=tcom_BeijingQunarSoftwareTechnologyCompanyLimitedMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	dei_LegalEntityAxis=tcom_Qunar.comBeijingInformationTechnologyCompanyLimitedQunarBeijingMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	dei_LegalEntityAxis=tcom_ShanghaiXielvInformationTechnologyCo.LtdMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	dei_LegalEntityAxis=tcom_CtripBusinessTravelInformationServiceShanghaiCo.LtdMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_IncomeTaxAuthorityAxis=us-gaap_DomesticCountryMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_IncomeTaxAuthorityAxis=us-gaap_ForeignCountryMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: