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PRINCIPAL ACCOUNTING POLICIES (Details 2) | 12 Months Ended |  |  | 12 Months Ended
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Dec. 31, 2013 USD ($) | Dec. 31, 2013 CNY | Dec. 31, 2012 CNY | Dec. 31, 2011 CNY | Dec. 31, 2012 USD ($) | Dec. 31, 2010 CNY | Dec. 31, 2013 Amended and restated share pledge agreements | Dec. 31, 2013 Amended and restated exclusive option agreements | Dec. 31, 2013 Ctrip Computer Technology, Ctrip Travel Network and Ctrip Travel Information Amended and Restated Technical Consulting and Services Agreement | Dec. 31, 2012 Ctrip Computer Technology, Ctrip Travel Network and Ctrip Travel Information Amended and Restated Technical Consulting and Services Agreement | Dec. 31, 2011 Ctrip Computer Technology, Ctrip Travel Network and Ctrip Travel Information Amended and Restated Technical Consulting and Services Agreement | Dec. 31, 2013 Ctrip Computer Technology, Ctrip Travel Network and Ctrip Travel Information Amended and Restated Technical Consulting and Services Agreement Air tickets Minimum USD ($) | Dec. 31, 2013 Ctrip Computer Technology, Ctrip Travel Network and Ctrip Travel Information Amended and Restated Technical Consulting and Services Agreement Air tickets Minimum CNY | Dec. 31, 2013 Ctrip Computer Technology, Ctrip Travel Network and Ctrip Travel Information Amended and Restated Technical Consulting and Services Agreement Air tickets Maximum USD ($) | Dec. 31, 2013 Ctrip Computer Technology, Ctrip Travel Network and Ctrip Travel Information Amended and Restated Technical Consulting and Services Agreement Air tickets Maximum CNY | Dec. 31, 2013 Ctrip Computer Technology, Ctrip Travel Network and Ctrip Travel Information Amended and Restated Technical Consulting and Services Agreement Packaged-tour products Minimum USD ($) | Dec. 31, 2013 Ctrip Computer Technology, Ctrip Travel Network and Ctrip Travel Information Amended and Restated Technical Consulting and Services Agreement Packaged-tour products Minimum CNY | Dec. 31, 2013 Ctrip Computer Technology, Ctrip Travel Network and Ctrip Travel Information Amended and Restated Technical Consulting and Services Agreement Packaged-tour products Maximum USD ($) | Dec. 31, 2013 Ctrip Computer Technology, Ctrip Travel Network and Ctrip Travel Information Amended and Restated Technical Consulting and Services Agreement Packaged-tour products Maximum CNY | Dec. 31, 2012 Chengdu Ctrip and Chengdu Ctrip International CNY | Dec. 31, 2011 Chengdu Ctrip and Chengdu Ctrip International CNY | Dec. 31, 2013 Variable interest entities CNY | Dec. 31, 2012 Variable interest entities CNY | Dec. 31, 2011 Variable interest entities CNY
Financial information of the group's VIEs |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Average rate per ticket based on number of tickets sold |  |  |  |  |  |  |  |  |  |  |  | $ 1 | 8 | $ 14 | 85 |  |  |  |  |  |  |  |  |
Average rate per person per tour based on number of tour packages sold |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 4 | 27 | 21 | 125 |  |  |  |  |
Service fees charged from affiliates as percentage of their total net income |  |  |  |  |  |  |  |  | 105.90% | 82.70% | 77.70% |  |  |  |  |  |  |  |  |  |  | 105.90% | 82.70% | 77.70%
Term of technical consulting and services agreements |  |  |  |  |  |  |  |  | 10 years |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Term of automatic renewal of technical consulting and services agreements |  |  |  |  |  |  |  |  | 10 years |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Written notice period required to be served for the termination of agreements |  |  |  |  |  |  |  |  | 30 days |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Period of expiration of share pledge agreements after the pledgor |  |  |  |  |  |  | 2 years |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Term of exclusive option agreements |  |  |  |  |  |  |  | 10 years |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Term of automatic renewal of exclusive option agreements |  |  |  |  |  |  |  | 10 years |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Value of an asset of a consolidated VIE that can be used only to settle obligations of the VIE, except for registered capital and PRC statutory reserves |  | 0 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Amount of registered capital and PRC statutory reserves of VIEs |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 444,000,000 |  |
Total assets | 3,438,966,989 | 20,818,474,462 | 11,669,751,008 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 5,982,258,881 | 3,724,911,506 |
Less: Inter-company receivables |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (373,041,663) | (542,006,382) |
Total assets excluding inter-company |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 5,609,217,218 | 3,182,905,124 |
Total liabilities | 1,996,859,524 | 12,088,388,503 | 5,084,871,395 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 5,287,287,035 | 2,835,938,149 |
Less: Inter-company payables |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (1,442,636,737) | (564,890,117) |
Total liabilities excluding inter-company |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 3,844,650,298 | 2,271,048,032 |
Cash and cash equivalents | 1,179,170,559 | 7,138,344,814 | 3,421,532,962 | 3,503,428,418 | 565,196,980 | 2,153,935,111 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1,500,000,000 | 1,400,000,000 |
Short-term investment | 600,474,248 | 3,635,090,955 | 1,408,664,335 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1,600,000,000 | 118,000,000 |
Accounts receivables | 250,793,734 | 1,518,230,029 | 983,804,403 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1,100,000,000 | 754,000,000 |
Prepayments and other current assets | 200,828,632 | 1,215,756,287 | 993,820,540 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 912,000,000 | 534,000,000 |
Advances from customers | 405,030,221 | 2,451,931,450 | 1,414,865,769 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 2,100,000,000 | 1,200,000,000 |
Accounts payable | 270,503,299 | 1,637,545,824 | 1,023,672,151 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1,300,000,000 | 792,000,000 |
Taxes payable | 52,083,793 | 315,299,656 | 216,456,010 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 46,000,000 | 66,000,000 |
Salary and welfare payable | 42,559,387 | 257,641,763 | 229,969,924 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 119,000,000 | 78,000,000 |
Other payables and accruals | 104,911,864 | 635,104,949 | 343,757,881 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 181,000,000 | 79,000,000 |
Net revenues | 889,826,973 | 5,386,745,542 | 4,158,791,249 | 3,498,084,628 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 3,137,211,893 | 2,465,286,325 | 1,923,643,591
Cost of revenues | 229,077,600 | 1,386,767,067 | 1,037,791,093 | 805,129,784 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 904,328,902 | 644,886,101 | 461,223,883
Net income / (loss) | 149,727,042 | 906,402,585 | 690,510,763 | 1,084,960,155 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (74,463,933) | 198,929,052 | 206,213,884
Revenues as a percent of total |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 58.00% |  |
Net income before the deduction of inter-company consulting fee charges |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1,300,000,000 | 1,100,000,000 | 956,000,000
Service fee |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 286,000,000 | 201,000,000 |  |  |

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