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EMPLOYEE BENEFITS (Details) (CNY)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
EMPLOYEE BENEFITS
Expense of Employee Benefits	440,884,906	334,150,368	234,725,030

X

- Definition

The amount of expense related to government sponsored employee benefits during the period.

+ References

No definition available.

+ Details

Name:	ctrp_ExpenseOfEmployeeBenefits
Namespace Prefix:	ctrp_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Details

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