XML 111 R88.htm IDEA: XBRL DOCUMENT v3.8.0.1

TAXATION - Effect of preferential tax (Details) - CNY (¥)	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Income tax holiday
Tax holiday effect	¥ 345,292,589	¥ 177,799,057	¥ 162,896,542
ADS
Income tax holiday
Basic net income per ADS effect (in RMB per share)	¥ 0.65	¥ 0.38	¥ 1.08
Diluted net income per ADS effect (in RMB per share)	¥ 0.60	¥ 0.38	¥ 0.86

X

- Definition

The basic per share effect of the aggregate dollar amount of the income tax benefit resulting from the income tax holidays granted to the entity by taxing jurisdictions.

+ References

No definition available.

+ Details

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Namespace Prefix:	ctrp_
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X

- Definition

The diluted per share effect of the aggregate dollar amount of the income tax benefit resulting from the income tax holidays granted to the entity by taxing jurisdictions.

+ References

No definition available.

+ Details

Name:	ctrp_DilutedNetIncomePerShareEffect
Namespace Prefix:	ctrp_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The amount of income taxes from which a reporting entity is exempt or for which it will receive a reduction in income taxes as a result of the income tax holiday granted by the taxing jurisdiction.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SAB Topic 11.C)
-URI http://asc.fasb.org/extlink&oid=34349781&loc=d3e330215-122817

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X

- 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.

+ References

No definition available.

+ Details

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- Details

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