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PRINCIPAL ACCOUNTING POLICIES (Details) (CNY)	12 Months Ended
	Dec. 31, 2013 officer
Shanghai Ctrip Commerce | Two senior officers of the Company
Major variable interest entities and their subsidiaries
Number of Officers	2
Shareholding percentage of VIE	100.00%
Registered capital of VIE	30,000,000
Shanghai Huacheng | Shanghai Ctrip Commerce
Major variable interest entities and their subsidiaries
Shareholding percentage of VIE	100.00%
Registered capital of VIE	69,950,000
Beijing Ctrip | Shanghai Ctrip Commerce and One Senior Officer of Ctrip.com International, Ltd.
Major variable interest entities and their subsidiaries
Shareholding percentage of VIE	100.00%
Registered capital of VIE	40,000,000
Guangzhou Ctrip | Two senior officers of the Company
Major variable interest entities and their subsidiaries
Number of Officers	2
Shareholding percentage of VIE	100.00%
Registered capital of VIE	3,000,000
Shanghai Ctrip | One senior officer of the Company
Major variable interest entities and their subsidiaries
Shareholding percentage of VIE	100.00%
Registered capital of VIE	10,000,000
Shenzhen Ctrip | Two senior officers of the Company
Major variable interest entities and their subsidiaries
Number of Officers	2
Shareholding percentage of VIE	100.00%
Registered capital of VIE	2,500,000
Ctrip Insurance | Shanghai Ctrip Commerce and Ctrip Computer Technology
Major variable interest entities and their subsidiaries
Shareholding percentage of VIE	100.00%
Registered capital of VIE	50,000,000
Chengdu Ctrip | Shanghai Ctrip
Major variable interest entities and their subsidiaries
Shareholding percentage of VIE	100.00%
Registered capital of VIE	11,500,000
Chengdu Ctrip International | Shanghai Ctrip
Major variable interest entities and their subsidiaries
Shareholding percentage of VIE	100.00%
Registered capital of VIE	2,000,000

X

- Definition

Number of officers with ownership interest in variable interest entity.

+ References

No definition available.

+ Details

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X

- Definition

Registered Capital of VIE.

+ References

No definition available.

+ Details

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Namespace Prefix:	ctrp_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Details

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Data Type:	xbrli:stringItemType
Balance Type:	na
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X

- Definition

Percentage of the Variable Interest Entity's (VIE) voting interest owned by (or beneficial interest in) the reporting entity (directly or indirectly).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 810

-SubTopic 10

-Section 50

-Paragraph 5A

-Subparagraph (d)

-URI http://asc.fasb.org/extlink&oid=28200181&loc=SL6759159-111685

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